ML20198L640
| ML20198L640 | |
| Person / Time | |
|---|---|
| Issue date: | 04/25/1997 |
| From: | Charles Brown NRC |
| To: | Steven Baggett NRC |
| Shared Package | |
| ML20198L519 | List: |
| References | |
| SSD, NUDOCS 9710270111 | |
| Download: ML20198L640 (9) | |
Text
_ _-. . ..
p Froms. ' Christopher-Brown To : -- slb 54c0E-bgpfIb Date:1 .4/25/97 4:45pm Subjects -Leaking sources Linda = Howell from region ln/ called to inform SSSS about two leaking-Amersham sources. These two source are from the CDC Cy series and are used for developing well-logging sources. The licensee notified Amersham and the state when a leak test of-
-0.0057-microci of cesium was reported. The licensee .was about having-a leaker and wanted conformation and sought an independent contractor. The contractor reported 0.003 micro Ci. Amersham l
' told the licensee to. send the sources back. Amersham's test reported 0.006 micro Ci. Amersham plans to now ship the sources
-to Barnwell for disposal ASAP.
Background on sources -. Purchased in 1992 Stresses on sources were minimal Tungsten-welds --found defects in welds--
L CC: fcc fred Cryb3 9710270111 9710d3 PDR RC
- SSD PDR i
1DNS R,AD SAFETY TEL .: 217- 782-1328 Hay 22'97 12:00 No.006 P.01 To: -
DRAFT IL-014404)1 File-From: Mary E. Burkhart 52, 7 g 1 Date: May 22,1997 Ncow-c*-
Subject:
Potentially leaking Amersham we *'
i .
On April 23,1997,-Bruce Santa re . ..,,-uon that a 2 Ci Cs-137 well logging source (CDC.CY4), belonging to an NRC licensee in Oklahoma, was reported to be leaking. Tucker Technology reported to Amersham that source serial number 1634GW was found to be leaking during a routine le2k test. The initial leak test result was 5.7 nCi and the follow-up test was 3.0 aci. The source was purchased in 1992_by.
Tucker Technology from Amersham Corporation. The source had been loaded into a two part bull-plug where the two pieces are screwed together and normally the cap should have been welded to the bull-plug at 90 degree points with tack welds, g Notification was made to Linda Howe, NRC Region IV, who notified the Sealed Source Safety Section (SSSS) since this incident involved a registered source. Michelle Burgess, contacted IDNS to discuss the possibility that this was a generic problem and a Part 21 defect. De possibility of a generic problem came to light when the source was reported to be used exclusively in a laboratory setting.
Illinois contacted Wayne London at Amersham and requested that Amersham refrain _ from sending the source for disposal until all-issues had -been resolved.
Amersham indicated that the source had been cast into a two-part epoxy block and that
- it would be held until all issues had been resolved. Wayne London forwarded the source
-_ analysis to IDNS (see attached) which ca.cified that the source had been used down-hole, but had not been used for this purpose in the last four months. This report was forwarded to Ms. Burgess.
Amenham's initial investigation theorizes that the removable contammation is a result of radioactive material that was present during the welding of the outer capsule and migrated to the surface of the source. The Department has noted that the source is comprised of an insohible, radiation and thermally resistent, inorganic ceramic pellet.
Due to the nature of the radioactive material, it is unlikely that the source material would migrate outside of the double encapsulation and the bull plug with no unusual damage to the outer encapsulation. He Department also notes that the wipe test results that triggered this event are quite minimal and do not indicate a catastrophic failure of the two encapsulations. In reviewing Amenham's analysis of the potentially leaking source, IDNS believes that this was not a generic problem, nor did it trigger Part 21 requirements.
-- _ _ _ _ _ _ _ _ . N
-IDNS R,AD SAFETY TEL:217-782-1328 .May 22'97 12:01 No.006 P 02 DRAFT The Department does recognize that Amenham loaded the source into a bull plug that was designed by Western Atlas and supplied by Tucker Technologies, Inc.. The assembly drawing clearly states that two "O"-Rings must be installed prior to placing the source into the source holdct assembly. Paul Mellor of Amersham indier.tes, in the Tucker Technologies, Inc chronology, that Amersham did not install the "O"-Rings because they believe that radiation can break-down the "O"-Rings to form acids within the bull-plug. Paul Mellor's report of April 23,1997 confirms that the "O"-Rings were not present when he removed the source from the bull-plug. Randy Nitz indicated to me [
in a May 20, 1997 phone conversation that this bull plug design is very_ common f throughout the well-logging industry. He Departnent must investigate Amersham's '
procedures to determine if they can load this sos.rce into a user supplied bull-plug and why they chose to alter the users bull-plug design and disregard the user supplied as:embly instructions. The registry document only allows for this source to be loaded into two stated tertiary encapsulations that are depicted in IL-136-S-191-S. He tie-down documents reference various source holders that Amersham will load this source into; i
however, the Tecker Technology, Inc. bull plug is not identified in the file.
On May 22,1997, Gibb Vinson and I contacted Amersham and spoke to Wayne London and Paul Mellor. Mr. Mellor performed the loading of the source into the bull-plug. He remembers that the design called for two "O"-Rings to act as spacers to reduce the amount ofinternal vibration within the bull-plug. Mr. Mellor indiated that the bull-plug design was an old Western Atlas design that to the best of their knowledge, only Tucker Technologies uses today. When Mr. Mellor reviewed the design, he noted that the "O"-Rings were a rubber product and in his experience rubber "O"-Rings break down due to radiolysis and form acids Mr. Mellor contacted Tucker Technologies, Inc. and requested info mation regarding the type of rubber used in the "O"-Rings. Tucker Technologies was anxious to receive this source so they asked Amersham to load the source without the "O"-Rings. It should be noted that Mr. Mellor added that Drawing
- 10169 falsely depicts this bull-plug as having a much larger source space than is rdly the case. When loaded, the void space is actually less than 1 mm. Mr. Mellor also indicated that the bull-plug was not welded because Amersham did not have the capability to perform the necessar3 weld. Mr. Mellor indicated that Gammatron normally performed this loading; however, when Amersham loaded this source they tightened down the threaded cap, but did not tack weld (TIG) at the 90 degree points depicted in the source holder anembly instructions. Amersham has noted that this is the only Tucker Techr. ologies bull-plug that Amersham has loaded in this way. Amersham was instructed not to load sources contrary to the licensees procedures if in fact, these procedures had been approved by the appropriate regulatory jurisdiction.
t On, May 22,1997, I called Mr. Randy Nitz at Tucker Technology to determine if this bull-plug design had been evaluated and tied to their lleense. Mr. Nitz reviewed the information that he had available and did not see any reference to this particular source holder. -I asked Mr. Nitz if he had any record of Tucker Technologies, Inc.
authorizing Amersham to load this source into the bull plug without the necessary "O"-
Rings. Mr. Nitz flatly denies that Tucker would allow such a practice. I asked him if they might of allowed this in lieu of obtaining information regarding the type of rubber used in the "O"-Rings? He said that this information is readily available from the manufacturer and that they could obtain the physical specifications quite quickly if necessary. Mr. Nitz added that Mr. Mellor of Amersham was not very familiar with the details of this loading when he had talked to him previously and was very surprised that Mr. Mellor's memory of this loading is so clear when we talked to him. Mr. Nitz was aware that the bull-plug was not welded and they had performed monthly checks of the
' bull-plug to verify that the cap remained seated. Mr Nitz will try to centact Mr. Roger Taylor, the RSO at the time of source loading, to see if he remembers any details of the events that took place.
L Y
IDNS RAD SAFETY TEL:217-782-1328 , ,,,,, Ju n 03 ' 97 8:10 No.001 5E P,.01
_ . .... E pp Fax Note 7671 '0*"(.p- 5 k b-u M@R '"* fMO Tl c.uoe "
, , , m.
v.. **
i ~
May 30,1997 g g g( 15M 3,,,,,,g,,,,,,,,,,,,
% Mc*$ ? uus.c m ist "g ' Mas == H4=. II. 6 eons Joseph G. Klinger Head ofLissasing D,
q,i atnot 8[ *
- "7" " '
DiviolonofRadioacdvsMatedels IEinoisDepartmutofNuniser SsAny son outerparknri fMmer$hlNT) w u, m. u,, . < ,,
springssid,IL 62704 RE: Radioactive Masarleb IJeanse RA1644-41 l
Dear Mr. Klinger:
This istter is to describe the results ofour 1:westigadan into tite 2 Cl Co.137 source tem Tucker Technologies that was maspected c(an=*=niamelaa is azoess ofthe 5 aCilimit. la addition, et tiu red ofthis later I wlR ansept to sununarian the points that have been a,--den'd t hrough converestions with you and your departaset la respones to questions concerning the loadas of I thispernicuser soures.
Amersham received the souros tom Tuciar Techaelogies la Tulas, Oldehema on April "4,1997, aAer oosamunisseises whh Tnscher indiamsed that the anarce leak tese indiented apa**adaah in ascess of the 5 aCl fandt. SpesidenEy, Tooker stated that a wipe test pe Anised on March 11, 1997 sevcated 5.7 aCl, and a sabesquent wipe test on Ayrt 11 hummend 3 aCl ofremovabic caat=mination. The results of all wipe tests oceducted over the life oftim source prior to this tiens wars withis acceptablelevels. Amersham errenged At hacker to send the source to the South Oeertmook Drive Ibsliity to evelsene the sourw.
The source (heodel CDC.CY4, 2 Cl Cs-137, Serial No.16340W) wa originaDy installed in the custosner's buE plus when it was supplied to Tucker Technologies la August,1992.
The *.tueelan proceeded by arm onductins a wipe temes on the core en the back of the plus.
When the results of this test did not reveal any removable ea=*=aia=*iaa, the bud plug was carenally h==w while WL.4 a series of wipe tests as the disassemtdy proceeded. The source was evemenany reauved, wiped and then inspected under a closed circuit television system.
'the actual evaluation was *d in our bot cell under tlw direction of the Operadom Meneser and sb site maat taa seresy om r.
-IDNS-RAD SAFETY TEL:217-782-1328 ..... Jun 03'97 8:11 No.001 P.02
, m a e
e Resuks orthe wipe testa dwins this procedwe were:
- Wipes ofiatamel surfbes ofshipping aaatalaar: Bkg.
Emernal surthee of the bug plag at the tack core:
Bks-
- Wipes ofisternal arums o(the plus (sowoe area, barrel, threads): I a0 (maximurn)
- Wipe of the assaalsoume andweld:
65 nCi
- Wipe of fine powderibund on inshic swihoo o(tungseen be& shield: 13 nci The contamination was confinned to be Co-137.
De evidence ofresnovabis aanta=Wetion in excess of 5 nCI aaramaha**i this maahamiaa to your
, oakm.
The visual appearance ofthe sowce as seen thfe4h the Ct.TV system was ocasiseent whh what would be espested toss a sourWbug plus assembly that was wat used, wkh sEsht ovklenos of damage and debris. No cracks, holes or other evidence ofcapsule ibilure were fbund, and the source was not badly desmesed. The projection arms suesseen besluhleid sowed addance of having been la eloos coatect with the weld ofthe acuros and may have been vibrated agniest it.
Two v rings, wthm wouis aa-a my how been innsed beween the aoses and $e bus plug, .
were not psessat.
L la ::^";'-a we do not have any evklease to suggest that there was a ~:: - f-_*: hilure of the source or weld. This is supported by the levels ofremovable activity Asund on the sowoe and the visual inspection ofthe souses capsuls and weld through the CCTV. The most Ekely cause of the aa=*==laa*iaa is proposed to be a release, thrnugh viiration of the souros inside the bul plus, of slight n=apaen of Co 137 that may have been lacorporated into the weld meterial at the time of menudbcase. To our Immviedsc, there have been no other =I=II=r asens of heia=
assoalsped with this, and we have no reason to suspect that this is a assuk of a gansric problem
- with this model saures.
To summarias the pointe made la response to questions that have arisen timmgh discussions between Assersham and IDNS concerning this event, I will try to clarify our posiden.
- 1. Amershant received aussably sutructions fbom Tucker Tecimologhs when the source was Arnt sold. A:s " , to the individust (P. MeBor) who loaded the but phes at the tisse, the instmations speci8ed the use c(two 'tr' sings between the source and bub plug. The decision was made to omit the *0" sinsr,when their oneservation meterial oculd not be --u=*-8 to Amersham at the time aflooding, and it was tiered that radialytic daaa=Taaletaa of the meterial naty create a corrosne byproduct. The instructions also speciesd a spot weld orthe assembly, which Assersham did not have the capabRity to do at the time.1his indbriaation concerning the omission of the v rings and the spot weld were appensdy communicated .
verbeny to Tucker at the time, who appaready approved the mamaaetaa- wehm no written &+ =k+ to derna=*mte Tucksce acceptance orthe =adw-taas I
IDNS RAD SAFETY TEL:217-782-1328 Jun 03'97
. 8:11 No. ~.001 Pv 03 4
- 2. This la the onlylandlas that was patwnied where dw assembly instructions wwe not ibnowed.
3 Devletian h euninmur-mappnad instrwalces, ifprovided. has not been a routine practice la the loedlag of thnas or other types orsawess. Whis austomer somous are routinely needed in accordemos with their MW the procedwas assosis ed with this pesties are sustomer
- speci6o A generie seures lomass procedwo is bei will include a review of hot est leading has bemopensions,g dated.
tentathely scheduled Asthhlatarmal QA audit for inter sw
- 4. N-r ' - hetwsum Tuchar and Aasersham dwing the evaluasion of this soures took pleee thebwenigetloa to Tushw, wasu "$ twied.
epdenedItaismwevoyimammation liksay ihetshowpers.*ery the sown hebreedon, immen. inideny known. This may .wommt fbe w,*: omar= ewr the ahmer erur. wenn = mean specine indbrrassion about the somos time was aos origina5y comammiested to Tooker.
- 5. Dwing the above diesusslans, helser eleo provided Mr. Meter with a draA of their document i which c tiined inn assumiens ad omeonoiogy orevents dateg m imwisesoa. ur. unisw recommended eartain chasys to the beker doomment which unuld more escurately roGem the results of the levuotigssion and Amarehan's aa=W This benene perdaulerty impos tant oaos Assemban iserned det the original notihmek that Tusher smede to NRC resultedla a si in Taster's @palSeest misundermanding ofthe nas of the souros k is soy vedensending that Turinr apsed to the magested over the entire per conecdons to tbs Tucker doesness, which were M ine: vponsed into als Amet dret.
- 6. % buiste which eney how essuned la the weldag of this evres is a edadvoly rare econnance. Since the time this soures was - _ :"4 the men of pekW ourmet TIG weieng has been implemumled by the mannhetuar which has reportedly rendied in welds or maparint quelley. n=Aaa=4 as Attachment 1 le a copy ofpp.15 21 Boss "110 EM Plasma Waleng' by W. Lucas, pubEshad by Abingios Febr.shing, Cameridg6, Baglead,1990. This a sferosos p ovides a doesrlpdos of the pulsei sevent T10 wohling process.
I hapv this inAmneston is sudgelent to enshis yut to close out this lomas. Ifyou would like to discuss this fbrther or need any adational inhnmatk:\ please do not hesitate to contact me at (447) 593 6300, estendon 497.
Sinewely.
(,(.A? .c3 we,n.w* ,~ca, Manger,Neclear Regulatory A8birs ce wr.nn w
i ums PAD $AFETY ..I4.2$12NN ~- "S' l
2 4 !il .
j .
ll'I# If!I 1'Of lldi h
' i lid WlIf "1 it f.l pl l
- !)!j"!f! *ijlj i
- l P"I I "b] 4'!
lf"]l 1
'E i{EIj! ] !l; I 'Il u
O(1 Inijj!h,y!!lN(Iih
. a E! !!Il!!hl!ll !
p t p it.
illi n iluilim itinii!!@nifli.g i 1 .
IDris RAD $AFETY TEL:217 ,782,-1328
, ,,,,Jun 03'97 8:13 I40 1 P.05 f
.E F
8-I llh ~
lldWglr.JW i l
- l m i 1 s!!I i
i i e l n t l4Whl !pl19 p i u--
!!!!!!l@llI!ll!)ii { l,,I!N
l
/ $80 uNitiD $T Af t$ / 174h d W,I% NUCLE AR REGULATORY COMMISSION
} naciou av j pg t5,,h' ' k[/
611 WAN PLAZ/ onlVE.$Ulf f 400 Antisotow. t e x A$ nois soe4 l
'T)g[U* .
May 15, 1997
'pmj Wl A "'
( , ( (. d -
MEMORANDUM TO: Steven L. Baggett, Section Leader Sealed Source Safety Section, IMAB, NMSS FROM: D. Blair Spitzberg, Chief, Nuclear Material Inspection and Fuel Cycle / Decommissioning Branch Region IV g *
SUBJECT:
WRITTEN REPORT StIB ITTED BY LICENSEE PURSUANT TO 10 CFR 39.35(d)(2)
In accordance with 10 CFR 39.35(d)(2), Tucker Technologies, Inc., a Region IV licensee, submitted a written report to this office to notify NRC of the results of a leak test performed on one of its sealed sources which revealed the presence of greater than 0.005 microcuries of removable contamination.
Upon review of the licensee's report it appears that all the roquired information contained therein meets NRC's reporting requirements. A copy of the licensee's report is being forwarded to you for any additional actions you may deem appropriate.
Note that the region intends to perform an inspection at the licensee's facility during the week of June 9,1997, to review the details provided in the licensee's report and to determine if the weld defect may have been cause by excessive wear, as initially indicated by the source manufacturer (Amersham).
Enclosure:
As Stated Docket: 030 19278 License: 35 19815 01 3 8 00
q JC' 9
Tucker 12607 E. 60th Street.
rels .oxla8em 7414e.ee10
. TECHNOLOGIES, INC.
P ll is it 11 E -
j- , April 29,1997 U. S. Nuclear Regulatory Commission 3 0 al ,;.
Region IV 1 _,
ATTN: Administrative Office 11EGION IV 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 760118064 Please find Tucker Technologies, Inc. (license number 3519815-01) written report required by the Nuclear Regulatory Commission stated in 10.1 CFR Par 139.35 (2).
This report is tubmitted for reason related to a radioactive source resulting in reading l
above 0.005 microcuries determined by its six month wipe test. The source discussed is a 2 curie Cesium 137 welllogging source. Source serial number is 1634GW, NRC model number CDC.CY4, Amersham product : ode CDC.2742 and Amersham's capsule type X2074. This source was purchased from Amersham in August 1992. This report will describe equipment and locations involved test results and the corrective actions taken.
I think you will agree that Tucker Technology, Inc. has handled this situation in a safe
, and respectful manner. Listed below are events in chronological order.
3/11/97 Wipe Tested R.A Source Serial #1634GW,2ci Cs 137 (standard 6 month wipe test).
4/9/97 Charley Gallager from Monitoring Services in Houston Texas called to inform me that the wipe test preformed on the 11" March 1997 for R A. Source Serial #
1634GW resulted reading of 5.7'10 microcuries (attachment 1). The legal wipe results are 5.0*10'* microcunes. We discussed the situation and he informed me that sometimes sources have a high wipe reading due to small bubbles breaking loose created &t the weld during manufacturing. Usually a second wipe will confirm this by resulting in a lower reading. He also informed me if the second wipe test resulted in lower reading it could be used for the official 6-month wipe test.
4/9/97 Wiped Tested R.A. Source Serial # 1634GW to confirm the above theory and sent wipe test envelope Federal Express to Monitoring Services in Houston, l' requesting results as soon as possible. While waiting for results the source was not used or removed from its holding pit and the source handling stick and last tool the source, was placed in were contained. I have complete confidence in Monitoring Services capabilities. However, I wanted to confirm that Monitoring Services had not made some type of mistake, for example mixing up wipe test packets, contamination of wipe at Monitoring Services facility, or any other possible human error. This source had never indicated any evidence of problems in the previous five years of wipe testing (attachment 2). Since the source had not been transported or used down hole since the last wipe test it seemed unusual that it could have been damaged causing a leak. The pervious wipe was preformed on the 9* September 1996 and the results were 4,53'10#
Tesy2.oanS 42p
'N
'i microcuries. The only usage of this source since the wipe preformed on the 9*
September 1996 was 2/18/97 when it was used to calibrate lithology density pad (LDP.
DA-010) at our facility in Tulsa. It was also used in LDP BA 010 on 2/21/97 to collect data from our natural occurring blocks we have at our facility. It was never used down hole in our test wells or any other wells during that time penod.
4/14/97 Called Charles Gallagher at Mnitoring Services in Houston requesting the results of the second4 wipe test. His reply was the second wipe was okay and the reading was 2.01 '10 microcuries, which is well below legal limits. However, I still had concerns why the first wipe test preformed on 3/11/97 was high. I called Dave Jones with Gamma Tron, explained the situation, and expressed concern about the results of the 3/11/97 wipe test. I asked him if he could check the source to help determine if it 3
was as bubble breaking loose from the weld created during manufacturing or what could l have caused the high wipe test results. He said he could check the source but he l
suggested that since Amersham manufactured the source I contact them for assistance.
)
4/14/97 l called Amersham and talked to Lisa Lee in customer support. Informed
[ her that we had a problem with a source manufactured by Amersham, ( a 2 ci CS 137, NRC model # CDC.CY4, Amersham Product Code CDC.2742 and Amersham Capsule Type x2074, serial # 1634GW) which was received in August 1992 already placed in our designed bull-plug. I asked her if Amersham could check the source to help I
determine the high wipe test on 3/11/97 and the low wipe test on 4/9/97. She said she would talk to her advisor and get back with me.
4/14/97 Jim Horn with Amersham called back and we discussed the results of the wipe test. He told me that it could have been a bubble breaking loose and that it would not leak any more. We also discussed having the source wipe tested once a week for several months while it was being contained and if a high reading resulted again appropriate action would take place Jim said he would talk to his advisor Paul Mellor and get back with me.
4/14/97 Jim Horn from Amersham called again and said Paul Mellor wanted us to send the source back to Amersham in Arlington Heights, Illinois and they would check the source for leaks. Amersham Reference # SCR 1092.
4/15/97 The source was shipped back to Amersham with all documentation on Roadway Trucking. The source pig key was sent separately by certified mail to the attention of Jim Horn.
4/24/97 Called Jim Horn with Amersham to check for results of source 1634GW.
He said the rource was leaking and would be disposed of by Arnersham. He also said a complete written report would be forwarded to me when completed.
4/24/97 Talked to Linda Howell with the NRC. Discussed the process of filling out a leaking source report 10.1 CFR Part 39.35. which is to be filed with the NRC Region IV Administrative Office.
4/25/97 Wipe tested pit in which R.A. Source 1634GW was stored, wipe tested the source stick which was used to handle source, and wipe tested the last tool which the source was placed in LDP BA-010 on 2/21/97.
\
n 4/25/97 Called Charley Gallagher with Monitoring Services for the official final results for source 1634GW wipe dated 9" April 1997. I had received verbal and fax results on the 14" of April 1997(attachment 3), but I wanted the official final results for my wntten report to the NRC. He was not in and I was informed that he would not be in uritil ".unday April 28,1997. Asked if there was any one else that could assist me and was informed there was not.
4/25/97 Called Amersham and talked to Jim Horn and Paul Mellor on a conference call. Paul Mellor informed me that two-wipe test were performed on the source bull-plug and the highest reading was 1 nCI. He also informed we that a wipe test was performed on the transportation pig that the source was shipped in, and it had no measurable contamination levels. He did say that the source was removed from the bull-plug and the source capsule was wipe tested at the weld and the results showed 65 nCl of contamination was removed. They also mentioned that since contamination {
levels were so low it indicated that the pnmary source was not leaking and was only the secondary container that was leaking. Paul informed me that he would try to have his written report faxed to me today, but if not he would for sure have it completed and to me l the first thing Monday morning. <
, 4/25/97 Jim Horn with Amersham called and wanted me to fax drawings of our i
source holder (bull-plug) to him. I faxed Jim 3 drawings, (1) drawing #1201 which was specifications on Amershams capsule CDC.CY4, (2) drawing #10169 which was source holder, assembly cap, shield and sub., (3) drawing where to fuse (weld) cap. All drawings are (attachment 4).
4/25/97 Called Linda Howell with the NRC updating her with the information I had received from Amersham about the wipe test results which indicated that the source holder had contained most of the contamination. Informed her that I had faxed drawing of our source holder to Amersham, had wipe tested the pit which 1634GW, and had been stored in, wipe tested the source handling stick that was used to handle source 1634GW and had wipe tested the last tool that the source had been placed in. Informed her ' hat even though I had wiped the above i'.ei 1s I would not have the results back from Monitoring Services before I send my written response to the NRC on Monday 4/28/97.
She said that would be okay and I could append the information at a later date. Linda asked me if Amersham had already disposed of the source or if they still had it. I told her to the best of my knowledge they had already taken the proper steps for disposal, and did not know if they had already shipped for disposal. I told Linda that I felt we had completed all of necessary procedures and asked her if there was anything more we could do. She agreed we had met the entire iequirement. She did suggest that we keep all of this information in our decommission file. Her suggestion was noted and will be completed.
4/25/97 Received thn written examination report from Amersham's Paul Mellor (attachment 5). I reviewed his report and noted that he had left out the information concerning the wipe test results performed on the transportation pig.
4/25/97 Called Paul Mellor of Amersham back to request that he include the results of the wipe test performed on the transportation pig. Also, I asked him if the 2 o-rings that are placed inside the source hcider were present when they disassembled the source. His reply was no they were not. This was not mentioned in his report. I will call him back on Monday 4/28/97 requesting this be included. I feel thic is important
i e
because the o rings are installed to prevent the very movement that he is mentioning in the discussion and recommendation section of his report. Paul did mention that he did not like to install o rings inside sources because of the possibility of the radioysosis that can form acids with certain o-ring materials. I informed Paul that Amersham loaded the source in our bull-plug (source holder) and if the o-rings were missing, Amersham left them out. As indicated in attachment 4 drawing #10169 la the Notes section. Paul also mentioned that he thought this source was a 1 in a million incident.
4/28/97 Called Paul Mellor with Amersham. He was not available, I talked to Lisa Lee asking her to leave a message with Paul concerning the o rings. Also asked Lisa to have Paul call me back as soon as he could.
4/28/97 Called Charley Gallagher with Monitoring Services, he had not arrived at work yet this morning. Ileft a message for him to call me as soon as he arrived.
4/28/97 Called Charley Gallagher with Monitcring Services, informing him of the 3 wipe tests that l Federal Expressed to him on 4/25/97. He said he had received the package and he would try to perform the survey today and fax me the result. Also I informed him that I had not received the final official result of the wipe test taken on the 4/9/97. He informed me that he had sent them out. I checked with our accounts received and found the results, included as (attachment 6).
4/28/97 Called Paul Mellor with Amersham requesting that he mention in his report the o-rings were missing when Amersham disassemHed the source This matter was noted in this report on 4/25/97. Also I asked Paul to fax me his updated report so I could include it with my report to the NRC.
4/28/97 Received from Monitoring Services a fax with the preliminary results of the three wipe test taken on 4/25/97. Wipe (1) was of the pit which 1634GW was stored in, the result was 0.3*10* uci/100 sq. cm. Wipe (2) was of LDT BA-010 the last tool, source 1634GW was placed in, the result was 0.2'10* uci/100 sq. cm. Wipe (g was of the source handling stick use to handle source 1634GW, the result was 0.5*10' ucl/100 sq. cm. This is included in (attachment 7), In conversation will Paul Mellor 1 informed him of the results and said this was not a problem. Charley Gallagher of Monitoring Services agreed that the wipe indicated no contamination. For gamma and beta the allowable limits for unrestricted use you are allowed 1000 DPM. As you can see we are well under these limits with readings of 58,36 and 11 DPM, 4/29/97 Received from Paul Mellor of Amersham by fax his updated examination report for source serial number 1634GW. This is included in (attachment 8).
As Paul Mellor of Amersham indicated in his report, the source had not catastrophically failed. I believe the problem was caught and corrected before this could take place due to quick action taken part by Tucker Technologies, Inc. and Amersham.
Tucker Technologies, Inc. is currently investigating replacing the 2 o-rings, which are used to prevent source movement inside the source holder indicated on drawing
- 10169, with some type of spring washer or waffle spring or gap spring. When the best type of spring is located this modification will be implemented. This will eliminate the possibility of the acid species that could occur between the o-ring ar'd the radiation
indicated by Paul Mellor of Amersham. However, this has no impact on the source-leaking problem.
Tucker Technologies, Inc. Will notify all of their service districts (none are presently in United States) of the situation that has o: curred. Informing them of the modification of the o-rings being replaced with the spring and the fusing of the source holder a complete '
360 degrees instead of present four tacks at 90 degrees. ;
Should you have questions or information concerning this report please contact me at the above address or phone number.
Sincerely; I
/\ L Randy Nitz RS'u M P Dennis Bechhold Controller
Attachment 1
l
--in ixt -r a i o.1,. f .g;4fggg 4 , , . , . .
y
,f n ( p r lj w :( '
Ui r
Monitoring Services lfs to Dos nau.as e Housitw 14 mal tW<ade e Ant a (. cot tiHaiosi e f As 7:16s t 4'u y*;
,, )
e SE ALED SOURCE LEAK TEST CEnflFIC ATE h v
< m j
si
,1 I TUCKER TECHtJOLOGICS IlJ C , 1 1
1 12007 CAST GOTH ST. SOUTH 4 TULSA ,08 74146 4I [
i I il ATT!J Or R. tJITZ l 'l G,<
l f,j C FILE 17 4;t_
- k. ,
E . ! l
( ,
' & i g
t S FILE 171 ti a &
, l -
h
) t, ta k &
p N rile ,i A n 4 .
r ..
,? I INVOICE NO DATE l$
{ : 6 :.
M i ->
p , \
y RADIONUCLIDE C1-137 [$
i l?.
l lt t, p AC11VITY _L Cf SERIAL NO .Eti_Gk! @
O' i t I WIPE DATE Qilb7 WIPED BY., F (b I h.
( it;
(.
1 EFF _ .995
- h. '.
t .
126D6
)
r GROSSCPM BKG CPM 19 NET CPM 125b7 4-f'.
( ,
!!L NET CPM = MICROCURIE I n ,
EFFX2 22X10' DPM/p Ci f
THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE $
% MATERIAL LICENSE AND THE APPROPRIATE REGULAiORY REOUIREMENTS THE REGULATIONS h',
N 4 DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED <
M 0 005 MICROCURIE OR MORE CF ACTIVITY h;,
N THE REMOVABLE ACTIVITY WAS S.70C-03 MICROCURIE b Y'M I b c% cl.td by PLA Ei p.9 4, M + 4 had r [%
di ASSAY NO - 040S97 12 DATE 04-05-19. 9 7 p u u tJ ASSAYED BY e
(. ___--_ ,
- - 3 Attachment 2
l
=--.-~.
- <<<m a , px g xrx n oxxr , x z en ,1 a x .:,
._ .gx:gycegp:a cq w p y y g.3xrx a cx,w ,
-H e
- M j-
, Monitoring Services O Po aos wa.4e . wovsfow tanAs tris mes . aMa coot tias.iam e saa risw4iu
' h, .
l l ^^^^^
SEALED SOURCE LEAK TEST CERTIFICATC i
I}:,
1
>, R ea l
w TUCKER TECHNOLOGIES INC. i i 12607 EAST 6OTH ST. SOUTH < -
TULSA ,0K 74146 g ATTN OF R. NITZ
[@.
- s. 1 C FILE 179? 3' J,
v n.
'l
' 5 FILE ._.1.71 n '4 P
- i f, i 1
G N FILE lanci ,
,\
- i e
+
l j INVOICE NO DATE j
i .
p 1
[ RADIONUCLIDE CS-137
! j m'
! O
' a.
! ACTIVITY 2 _ _Cf SERIAL NO .16.3 4 GW E
'a
! l
- 4( .s I
WIPE DATE 031197 WIPED BY f
k.
EFF .99_5 _
f$
'l @
GROSS CPM 12606 ___OKG. CPM 19 NET CPM 12567 g
' ?,
I k.
iu NET CPM = MICROCURIE ?
su .:.
.D EFFX2.22X106 DPM!p Cl :n
], d' i
I THE ABOVE SOUqCE WIPE TEST HAS BEEN ASS /,YED IN ACCORDANCE WITH OUR RADIOACTIVE )
g.
ji MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS ?,
j, DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED
- O 005 MICROCURIE UR MORE OF ACTIVITY f y,
i/
THE REMOVABLE ACTIVITY WAS 5.70E-0S MICROCURIE Mk' YbI l $
ii 0%
y.,C r' duby +fh' '
1 kur T ASSAY NO. 04.0597 12 DATE 04 19. 97 3 ,, A y,tj i.a l
ASSAYED BY [k _= _. _ 1 '
y {
hh be sphhk- -h[py' V y yy y wp ( hh--._..
M M V =JL M.AJA.4A ACAz u mA a F, 'T
,J V V S' kkk hhhVh *WF f
s Imdrx,gy. ,:i__c y. pjg jgggggg.jpgja4, j l' ,
'[-
n - ! a.
i .
4 2l j-W' m .
lA B Monitoring Services 1 g.
eo aos sn.is . .evsnw nits msame . aan a ecos mw em . ,an m w4,u 4 g wm SE ALED SOURCE LE AK TEST CERTIFICATE fv e
l -l .
ls ra
.: e>
7 TUCKER TECHNOLOGIES INC, l$
'j]
. II' 37 EA3T 6OTH ST. SOUTH ?:
ju TULCA ,0K 74140 4 g* I ATTN OF: F, , NITu ,
l i l C FILE i 7 4 *s
- n
- f:
?
k' .
- b '
S FILE i ? i n '4 _ N dl
< p h u
N ; p
! N FILE 1404
$.: i 1.i .
<,i
<l .
4 l INVOICE NO DATE [l
\ >
j ta ri -
- ~ ??-137 RADIONUCLIDE ll o
t
'.o ACTIVITY 4 Cl SERIAL ND JML_QW lj f i Mn., I, j?
0 WIPE DATE 090996 WIPED BY
(
g h EFF .99S a D
y 8 &,
N l $
Eh GROSS CPM 22 BKG CPM 2. 1 NET CPM i I-R y h al-! 4 e
I NET CPM = MICROCURIE $
w Wh EFFX2 22X10' DPMW Cl y '
e I THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE ,,
,h MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REOUIREMENTS THE REGULATIONS {,
y DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED q; el 0 005 MICROCURIE OR MORE OF ACTIVITY h .
7l $
jl P N
THE REMOVABLE ACTIVITY WAS 4 53E-07 MIOROCURIE [i l l Ui IK U ASSAY NO. _ 091496 110 DATE 09-14 4.9.96 $
h.
s g' .
ep >
h j '
ASSAYED BY . 1
[ g, Vl - . . , , , , - - . :.. - a:.:.-; =: ,,:.==rr mnammp:,_gggypu,nmc ; ;
y "Wh%ikla6fs%%%9:hMWr46,MA%%4%WhWMMW%%%4M24MusMvME_%__.%._M. .M_N_ _
l i I
. _ i cY.
! m Monitoring Services
.o,,em...,~,,,,,m,,,_.........,,,,m.......,,,,_ ,!!
jw l g !
I v=- SE ALED SOURCE LE AK TEST CERTIFICATE f 3 1:-
4 2! . E.
& l y TUCI',Eh TECriNOLOGIES I lk. . J jr l 12607 EA2T 60TH 5T. SOUTil p; TUL5A , 01', 74346 lj lj
- ATTN OF
- 1.. NIT ~ ?,
e t
- C FILE 174:* '
- ' (
I !h -
- S FILE .__17103 s'
$ l. {l
- [ 4:
I' Y N FILE _1109 b R gu l '
INVOICE NO DATE 3
. w .
.Q h
l RADIONUCLIDE G - 1 J'? *:
1 i.
. n k'
.,g ACTIVITY - Cl SERIAL NO _b d i Di.
t h:
- I Dj[ WIPE DATE ,9 312 96 WIPED BY _
I P.
e !
3' j : i .,
f a
! EFF .990 h, j GROSS CPM ,> $ BKG CPM 19 NET CPM i4 l f l
i d...:.
NET CPM = MICROCURIE b EFFX2 22X10' DPM'p Cl 6:e, k: THE ABOVE SOURCE WIPE TEST HAS DEEN ASSAYED IN ACCORDANCI WITH OUR RADIOACTIVE l4;
-k MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REOUIREMENTS THE REGULATIONS
- 4. DEFINE A LE AKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE 'EST HAS REMOVED If'.
j THE REMOVABLE ACTIVITY WAS MICRDCURIE ,
l-l
! ASSAY NO. 032396 14 DATE 03-23-19.96 _._ @f'.
f
- [
(k.
ASS AYED BY 5?5EE5U5I#ff8ME?Tf@.HUTWiWWpW*TW@WF#??M7dSPMMWi76%AMMbW _
S$Y S h, $_ h&h55$ ,{[j f jgh'g[jhf[f ANf,[ fh,t f _ (g "; fQ
, , , f ,. ,
A d-
- 1 t 4
i 1
b .
. .+
i
.m Monitoring Services r
- i PO F' 6kue
- Hov510*v 18 a A5 F7.*n osas e amt A C00f Innd14*
- 8&s '13914:53 l}
- li, h' e SE ALED SOURCE LE AK TEST CERTIFICATE $
ses l
- A
{
I TUCKER TECHNOLOGIES INC. J l 12607 EAST 60TH ST. SOUTH 2:
l
- TULSA ,0K 74146 4 l j ATTN OP
- R. NITP. ?,
! I '*
l C FILE 1743 .
$ 'l 5 FILE 1?103 &
lI k
i 4
N FILE _140s l $
l' INVOICE NO DATE l I
! RADIONUCLIDE CS-137 ?
6 p3 I
ACTIVITY 2 Cl SERIAL NO 113LGW ?
i .
i 1 t *B
. {i W'PE DATE 090593 wiped BY I k
W: I n .995 m'
- ; EFF
- ,
o l
GROSS CPM 20 BKG CPM i8 NETCPM 2 l$
jf h
w '
J W-NET CPM MICROCUR'E
- jl
=
e
< j, 1 EFFX2 22X10' DPMW Cl p a i
{:
k THE ABOVF. SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR PADIOACTIVE p},'.
l1 MATERIAL LIC.ENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS }
y ! DEFINE' A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED (;
e 0 005 MICROCURIE OR MORE OF ACTIVITY 4-
$l p
4:i.
- THE REMOVABLE ACTIVITY WAS 9.0SE-07 ._ _ MICROCURIE ',3 e ,
ll -
4:
l l ASSAY NO. 09099S 20 DATE 09-09-19.9S f.
................... - =-- Yh
-) I ASSAYED BY f.
- hnb_____ ..,, . ..,,,,,
~ ,,a a a , w ... n r, w . w .m. m m + _ = m asi,,,a ;; _
. c
+ u . . . ~ . _ - ,
gg. ,,_ ., ,g , _ ,_ ,
y ~r' q.
J 4
i s 3 e _ ,
4 t
Monitoring Services +
5 no son ww . .ousicw isaas um . . aata coot nmi43.i . eas nmi4 u g
- SE ALED LOURCE LE AK TEST CERTIFIC ATE
'l @
l{ $
n..
C DIGITAL LOGG1HG INC. 3
{ 12607 EAST 60TH ST. SOUTH j 1ULSA .UK 74144 g
- l(
l ATTH Ori D. AYkE >
u C FILE 1293 h f[
l S FILE .
17103 p$
i!
[ '. N FILE 1409 t
I; -
jl> b jf INVOICE NO DATE te 2
h .j! RADIONUCLIDE CS-137 %
t e
3, l
l ACTIVITY 2 Cl SERIAL NO 1634 GW ,
I ,
t 4 n e WIPE DATE IlI/Y4 WIPED BY f
EFF. *995 :
s l GROSS CPM 32 BKG CPM 16 NET CPM 16
'$ t NET CPM = MICROCURIE EFFX2 P2x106 DPMfp Ci
.f THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE j,
MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS 5 gl, DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED e'
( 0 00$ M'CROCURIE OR MORE OF ACTIVITY 7.24E-06
}M@M3WMP
[
THE REMOVABLE ACTIVITY WAS MICROCURIE M P 01994 i Q
)f .
ASSAY NO II24Y4 Y7 DATE II'24'IY'Y4 " " "* " "Y' *"""*""
ASSAYED BY i lkk --- l ~ ,- na. _ -- = , m m n l
m mm u mm rmy gy.g.qquagggg 4
x rinyxnz tyri ,, xxx
'] '
l; - )
Monitoring Services ?
eo ac smeas . <>usics 1aaas trmcs4s e ansa ccot inmem * *as risw4tu e SE ALED SOURCE LE AK TEST CtnTirtCATE r
i:
[
is, it OlGI Till LUG 0illG IHC. $
12607 LHS1 60111 51 . 500111 . D TULSH . Uli /4146 4 A rlH Of a D. H Yl(L D
C FILE 1793 1 0
S S FILE 1 7 1 0,2, _
N FILE l 'i O Y \
-E<
I d's.
l tNVOICE NO DATE l l! i Ifs 1 1 j i-l RADIONUCt.IDE Lb-1 H j I
??
M 2 SERIAL NO 1634 GW ACTIVITY Cl 3
'h
^
WIPE DATE [06Y4 WIPED BY _
M)
D EFF 995 t
+,
3
-?
'j 2
- NETCPM = MICROCURIE 5 EFFX2.22X10' DPMW Ci f I :,
P THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE E MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS P;
- DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED ,
0 005 MICROCURIE OR MORE OF ACTIVITY ! a, P
'i THE REMOVABLE ACTIVITY WAS ' I Ul ~ 6 MICROCUnlE 'd
! -9 l l 1 1 l ASSAY NO 0S149<4 23 DATE UU~~l4'IY Y4 ,
- / i ASSAYED BY f .
b
. s w - _ .. w a uwa.m.. m... wg?._w__a,,a w a _ ,, _ w ,,, a :
w
.' ^^^^IIIIII"iIIi'-I-it'P f^IitM N W +M@ W'9 % f*MMM$iMj?f']
. e
. X $
)
Q l
M 1 Monitoring Services u w....-,,,,,....,_.................... )
i e SE ALED SOURCC LE AK TEST CEnflFICATE
]
d h i l l i D ilil i t*L L UGG il4U lill . }
-i 12007 LA$1 60lH S1. 500'111 ls I U L '.s H . UI, 141 ri o !
Q i
, Hl ill Ul I liutilfi 1 H L Uli Ih l
' ? l C Fil.E 1793
- 3 ;
l -
l S FILE 17103 $
u; l 4 l N FILE I409 i 2
- t
- INVOICE NO DATE i
( s.;
RADIONUCLIDE Ub'A3' k ,
l 3 )) .
ACTIVITY '
Cl SERIAL NO I034 UN D s e.,
bl b 100093 ; . WIPED BY s
WIPE DATE _. _
h,
?
I EFF ' ' M ia s
' h GROSS CPM _ 26 __ OKG CPM I9 NET CPM 7 NET CPM = MICROCURIE I EFFX2 22X10* DPM/p Cl fa.
- j
) THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE Wl'H OUR PADIOACTIVE I l MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS h) h ; DEFINE A LEAKING SOURCE AS ONE FROM Wh:CH AN APPROPRIATE WIPE TEST HAS REMOVED e
( 0 005 MICROCURIE OR MORE OF ACTIVITY .a
( .
4(.
THE REMOVABLE ACTIVITY WAS ? .17 L - O t' MICROCURIE
< eg i =
p
> 'u K
g
, l ASSAY NO A00Y93 U DATE ID'09~IY'93 I
- , 3*
1 ,
ASSAYED BY ClG 4 2LI- _-xxx TMErwtMtweem.s vgannn;;wwvy.pp.pgeggy_pyyy_ym_ _ 1 nmiourn nrr nr
"" "::" * * ' *
- T "21.YMWMM96hMM4RAWsM %MMMMMM%46 .
J
- l. 0 l . Monitoring Services :
eo con we . <wsicw tians eme u.as aata coot ttwiemu . sai simi4iu IJ l ]
I ~ )
SEALED SOURCE LEAK TEST CERTIFICATE ;
'; l!.'
l> l i,1 4 til L lIG r.l l m list m M
+
. l 09.' L et' 1 ru> 1 li $ 1 ;00111 l 1 UL t.h '.i l t o W
. ' 11 I g i
ill Til Oi HUGER 1 riL ule Ir
!l C FILE I'4 I l ,
i s.
t I
S FILE ...'II"
- N'<
'l !
L..
l-N FILE I""*
.l INVOICE NO DATE l'
j5 .
_ .- i L .
!'A RADIONUCLIDE r'
1 '
( q
$ ACTIVITY Cl SERIAL NO "' ' ' ' '
f J m
I il - W
'l WIPE DATE
_ WIPED BY__
(' , i:4 w
( ' ,,' '$
4 EFF 0 k, p a
k, -
-l GROSS CPM 'V '
(
j(. ;
f NET CPM ,
= MICROCURIE 6
EFFX2.22X10 DPM/p Cl y 3 y THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE E MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REOUIREMENTS THE REGULATIONS P i[ DEFINE A t.EAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED b,,
0 0 005 MICROCURIE OR MORE OF ACTIVITY I.
',.! n$.
THE REMOVABLE ACTIVITY WAS
~"
MICROCURIE o +
"4I"" k s
0 H
ASSAY NO. I" DATE
"" I" '
f u;
s ASSAYED BY lI6 4- ,
b b .--a_,iawapyggswu-aw,,,,,aisy, i .
Radioactive source test report '"'" "' '
rroduct code desenption customer order no BStiSO classifcaton CDC2742 CAESIUM 137 Cit VtLL LOGGING 419727 i C66646 i
' SOURCl customer AHtt$ HAM CORPORAtl0N Al kem no C/D Cl!ZON CORP CU51 CMS 6t0(Et epociallotm certifcato re
%$0 W 70Sitt AVENUE CHICAGO E89604 2 ILLlWoll 60656 AEC L USA CS/278/$
source nodel no nomW actm4 recommended workng Ide CDC.CY4 2Cl 74CBq 15 ftARS eenal no measurement i measurement 2 test test test
! ba:3 no D A A l -CURIES este date l l
1634GW 2.21 18/08/92 18/08/92 19/10/93 18/08/92 j i
l i
1 notes AKR - AIR-KERMA RATE IN MICROGRAYS PER SEC AT ONE METRE TO CONVERT AKR TO EQUIVALENT ACTIVITY IN CURIES MULTIPLY BY 1.25 THE ABOVE SOURCES PASSED A PRESSURE TEST OF 4 x 15 MINUTE PERIODS AT 2!,000 PSI ON IHE ABOVE SJURCES CONTAIN NOT MORE THAN 1% CS-134
. DATE OF DESPATCil 6 NOV 92 signature positon . drae 06/11/92 f%
~ t
'Y m s N
- this classitcation comples with BS52881976, wNch is in agreement with ISO 2919 (see overleaf for definiton and descripton of tests)
Amersham international plc Telephone (C .. y A , 3 0 Amersham Laboratores Fax (0494) 543243 White Uan Road Cables AetMty Amarsham
i '
o ,,i.
y..'._ y [ ..'. 7 3. . . .
. . . . y
- 4. ,. .
. . .. . . ... ,. c , ,. . p. . .
. . . . . , . . t . q . .c. .. .
- 3. . . .. .. .. .
"O, T "- ~PROCEDUittS FOR RECEIVING RADIDACTIVE MATERIAL (SEALED" SOURCES
. v . .
6 The following procedures will be used when receiving Sealed Sources: '
g 1. Visual inspection: Check that source vault is locked and no
, apparent damage is visible.
- 2. Survey the package - it should have no more than 200 milli-roentgens per hour at Package Surface or 10 milliroentgens .
per hour at 3 ft. If reading is in excess of this, notify the RSO, the shipping company and the N.R.C. Regional office. .
t I
- 3. Check for ,a current leak tert. If there is no leak test, the sou'rce must be leak tested before use.
4.
Check material to be sure it is on the License and check serial numbers; be sure material is what wcs ordered.
4
- 5. Take a wipe test of the interior of the transportation vault and check for contaminatic.n. If contamination exists, notify the Company R.S.O. immediately.
Take the following readingst Package Surface 3 MR/Br.
3 ft. from Surface , [t MR/Hr. .
Wipe of Package Interior O..,c .- MR/Br. . -
r Survey Heter I ent ication Model Nurber M u n Cal. Bate b/ [2 Manufacture .. L vms., Serial No. b 3 d M s
,:, , . n
. . t. . /.; . . 9:;.;:.y.
. .q,... ...... -
5
. v.
.i.,f. .., .
Signature nd .
. p n ... .-
q.6.,p: y .g.
, , . . , i. .;. .
... .;3 3.. .y g.. ;. . . :,,,,g. .
- g. .g. v. , p .c. s. , ,. N . 4 y ..u o.pa.+ eg m ." .,s . . . . .
. ..:a y ..r _ q 3, . m. .a
- m. ..
.. y
.* o. . - . . .
_ ..,, .. ... q -m
%. ..,v....
w ,r a.4... .or, L:et.e; a,.r...a.4.-.s a u-*.-a,a. .
.. . lt;n.. &m ,..;i..-. s
. ,e; m,.
- ca .. g. d. .
7 4.. ,,r .s.m.s na & s.n
.m .
.... r .,. %.w.a .. w
<.nn M N $4
'w' ~ * '
' + iv. *~ - :: ~ .
Ym,.<;@b.e s .~ .
t:. .. .
t:
. a.
.'~:v c. .u .c . w V.:.,.. e .;;,Tc ! r t.: : .- i . -
.s . *
- w. .
1.: -
. :i ::.v. ,'-. u tv. r: . . ;;.p.
- fC... m, i,.G. .. M,. .-m.
.' ng.w .:.u.%..c w.G.-.n.i.g. :.;e, u;d,...g !..G c.M. ,.X..
u . . . .; L.%, . :.a. :.C . ;~ %..;..%. ...*r..,..G....L n,O. ... W.td;.g?; ._aug.CM. . .'+iw.wi.
wi
.uan,g.ss e J. .q ..s..y L . e .4, . .. -..
- .y;;
-. ,s
? n. n
- , a, .w
- v. $....,h 2 m . ,. .
t,.w'. ....'
' , . . v . 4 . w.. gc .
- t. o .. -
.s . ..w. . .. .m. 4,n. 8 ,:: .
y .-p ,. p;r:g.p .J ; *,Q . '. J i'*.'. r ... ,.
.q,,, g.i % . ,' '.p.,:.
i W.q , . .
.. ..- . s u. -
7, t al, *8 . I [* [ k' d.i. J. 'k
.\ ,e d
4 *8. *g g !. '9 * * *'
- u. 3,..m : o < . . r, n. .c _..., e r.
g
, 4g *
.._h,N. . ef!.dkhq,v
. , , - %. a . ,y - .
'.- LTrfs.'*.*,,f ?b W.c :r.v; n$.M .bMh n' .Y.hA S, s . t..% ~r. .i' $E. 7. . a . h. e#:Q t..f . . . 'l 6.,'U. *&. %. r$,Q..
..\s s dpf.MT.*.O..A j.r.$.d. ?.+4..i~
u . s '} s'A.I Q. .m.
.-. . d'-[d.'s.1 .. ' {l e.b,.. . 6 ,
]} .qt. CW,4tt:nC%, pdkj"L*/ % ,! N *
,a
.
- 19' * ! \ .
.4p"19 s.
- c.: "
- d. '. * 'W, . .At QVi .
4 ..
P P .", .
- 3. . . 7.*'
8 Attachinent 3
l 4
6
~'
6 Aph-15-97 01:42P N551 713 G41-0153 P.01 4 ;,
i-
, ,,b
/ 's .
MONITORING SERVICES PO BOX 500640 llOUSTOt!, TEXAS 77258-0648 (713) 641-0391 fax (713) 641-6153 l=3X
=
to: RANDY NITZ fax n: f/8 - 25 2 - WP./
from: CHARLES T. GALLAGHER date: April 15, 1997 subject: PRELI!iINARY RESULTS pages: 2 NOTES: SEE ATTACHED i
- L Ari I.-15 07 01: 42P N351
- 713 G41 G153 P.02
- - - _ - - _ .... . . . . . . . >-. .~ . . . < ~ < ..
.b .
. ----~~ ---
rom llN 6% ylegtty r y hvi *1.wan nuo,Ilin, f( W. ' 35.t. 4?
tlus It'l &(Peil l
l <
- l. .$ l 100l) Il(hreitill,lli (Hf,.
1:eW fasi Astu I stivitt IVl5N . ill ' eld, allNib. Hill ellha (PlailltM 14V' LU(6flDM N H 48(l' tl . , _(16., ,,, Ultlle lf _,
[ tat ib16tictlw4 ll te il tu, Dna il 24tl Illl I Hl.it(! $[6llet I.g![ hf l%10l! 00% t#[ f (fl 1,l n tillkO(44115 t till MRt6 vit( On (Fn (in est;'T'd I; te Ida tv "<-vt.*/ (5 19 44 4 44 aets ..e 'tiyl.a.
t W
. i Attachment 4
I i
e
-i 33,3 u ~+ a' a sec tc= = =
g
"" Si m eMe KI ggg g 1s75 - 24e:D- , sccoc. ,u. dL -s
.350 - --
u4- -
as - ac3 - - as
,3 TetIL RCL
~_ --a d ~
_ ,,, soRc 454 crA
.167 '- '
I c--- -
j, r- -( -,
, m, ,i____ _3.4 I .7,Se t75 ca 7,,3 ,,
l
,3, : , ,A - - - -
te3-l- \.._ :-2s TNa 269o sw l ,
45- -2 DETAIL CAP
/ a 4
[
~~ '~~~
l MATERIAt
- 17-4 PH ssi. (91006-0016) 1-2s TH2 j f 1 1/2-16 TMs 15 MX ACRCss rLATs a ~
(THE 11R 1483) (L690 ACRDsi CDRNERs)
L792 .005 R 3 46 THE REL 7 015 R 1690 a 1500 ER - stE D-R!% e 1499 "RiXIVE DCIAIL 1680 l '
- ,'d DR - I i .
g3 4 .?? "f
-4 DETA.IL SOURCE SUB <sa ng _f ; 3 44e
=4Tratat. 57-4 PH ssT. <$ tees-oare: D-RIM CR2TVEIE*A 4 ETR TMSTEN SHIELD **
7,34 3 $ g*P^"' A <-1) m4TER14t. Tuncsitu (9161-0016) 201-F1 .
3 PART N[1 DCsCRIPTIDN
.4 10169-4301 .nca OdsrYsousco 5 10169-t302 g a m <scs assn
\ 6R.vt wic.a umR contra, To cruTcR 2o 69-4302
~
M+ 4u
-==.
v16 spac1Na BETVEtN LINES x
60- \ .375 En
,,,6 ,.,3. ,
10169-1303
.1 m -,
eruncsum saettn>
~
j ,
'E to:69-t3o4 - ^!aM'11 VIEW A-A stE SHEET N3 2
^l, j^ - -
E2 Da 225 sa 10169-:305 3
@M 6 1:3-8323 30i "
60*
182-*'U' 12169-1307
- EE **EI "Il #
M s4ET N[12
-4301 SOURCE HOLDER ASSEMBLY DETAIL B tea 9- a s stts4tf e 2 SCALE 2x (VITH 2C EsaM sDLRE) <
(7004S-40Ch 1 RECT.)
-4302 SDURCE HOLDER ASSi:1BLY cLtss 2 ctsam sounct> wasss c sewiu specuma .. G wm y- .= ==- . s : =-.T.~i.5=D- LR1 ~ .e- - ~
A *to-Rocs.c.s1sc mst.un a.
E.~LEf. ._"= '.". .
" '= = = r q iURCE HOLDER, ASSEMBL' scroRc scanc m m O .
2~ 3 tr *
~
sec
"-a'-* CAP, SHEILD AND SUB A rusi.c "' * * *arca.Tmu
" '"5 ^' u "- sc ec-> 0 - ~~~
stt.Ris e
straR4'c usT -
2C CESIUM ..
l -
C 10169 F ll g m' 5
- 9
[
b E . _ _ _ ...s.__.._____________ ___
2 1 4 l 3 t l R E VISIONS 1:a l si t t etris e s l se savi lapre A htesu TheEf d59pe.g i .2 - e-we i c f ALL DINENSIO.C3 y D P.ETRIC = 4 f,e
=- ' ..
, uas pa.
- ~.
'f.x' N C v w
'l h; r
h 4 .
- ________~'
f 7 ,-
p/ r - b ,
g g Ts, pocyegjg; COedTnd
- r* ,=aacanv.
- h_
,: g:
li
'g %=
4 g - w% .
= v08 0*'amast
.a acusEn n% l i
- f:: ,
V E7t#LL SsJLE
% r j@
4 i E, us wn -m n war.:
=== - mt. ,e
,,,o.,
't. %, esso _ _ _ _
,A_ly
-t NN -
!' 'k w 7 yo_ i c,eu a,p r,os
' seo,-veor i as s ~o aa/
ca*1uts Tres : n2071 re u.1 m F w a r sc:e: cc:. 2n:
NM ntoca: * : c cc . c r.:
entiss etnismist sPicisits contasci na :
~
7gggggy .,.
uANLEACTURE R: u en stata , sis saamiss IK'*"m A _
atsses att ass.s ass sense tsus ao..a sagt, AVERSHAu CORP 2s-s sa coexReawr. t.
" ' ' a 'a s ' "' " a " ' """ " spec. 6cWE 2a 2aterm iessr. x - ';"ll""l",2.. ..,== g ;,y a;;; , cs m
..u ....t . .u.t.. :
'a"'" a '"
A _5'n w .u,, -
B I2o1 A.
. . ., us, i -.. e., ....... ,,,,, a s ,,, , s, ,
. ,, n c . .. .
1 4 1 3 i .. _ 2_.._ . ._
l f
I -
\
L
- h . _ - _ _ _ . _ _ . . _ _ _ _ _ _ _ _
.uat e >u en air >
NO ADDED METAL.
T
('
f p
FUSE e 90* APART
/ , .,:_ ,,
^
- 20 CI AMBE SOURCE HOLTJER ASSEMBLY r---/
FUSE e 90* APART
/
Sf N
\
ND ADDCD METAL. \---- 2 CI CESIl SOURCE HOLDER ASSEMBLY
,7 s ;*4 AUT fb ,
K;M
\
.y Q, SOURCE HOLDER ASSEMBLY .,
e - p _
n Mb$N<fE' ? dIl
4 Attachment 5
I, . '.,04
- t. . , '
o,' g.
35, Q7 o1 I4I PM
- A M II R S H A M c c, g p A. PO1
?" . .jj 4.
- a-fax h Nik hm V
W .
4--aam % a.
f***ku &Wchtchev Nt 2636 5. Clearbrook Drive
! - fax number Aruner o u g u
.. R LT 25L <-\(+ % > lilinois 60005 4692 from Paul Mellor tel 847 593 6300 Commercial Operations Manager g,,g47yp3,,99t dat number of pages to follow s'
23+ CG PAmersnarn ofthu heessage h not fully or legnbly rueived please telephone 847.593 6300 1369 l'
7 ,
s .
h b
c ,
g Q ( b C
- f. G{l '
V .
\ GCGih
. . . . ~ - ~ _ - . . . - . -. .. ... . . . _ - , - - . - _ _ . - - _ .
e
- ~
O4. 2 S. G '? O1 1 41 PM
- A t1 II R TJ H A M CORP Q. E. A. PO2 4
. Eaamination of a 2Ci Cesium-137 Oil Well Ingging Source for Tucker Technology, Oklahoma intranluctinn .
On April 14, Randy Nitz of Tucker Technology informed Amersham that 5.7nCi of removable contamination had been detected on a routine wipe test (March 11,1997 of source 1634GW,
- Amersham p Vduct mde CDC2742, model number CDC.CY4. A subsequent wipe test on April 11 showed 3.0nci ofremovable contamination. Although this subsequent wipe test was below the SnCi action level, Amersham agreed to examine the source. The source was originally supplied in August,1992.
Evaluatigg The source was received at Amersham in the standard shipping container for this type of source when loaded into a bull plug; see attached drawing. Initially, the core at the back of the bull plug was wiped. Contamination levels were measured at 1.ss than background. Subsequent wipes of the source area, the barrel and the thread, removed a maximum of InCi Tne source holder was then unscrewed and the source wcld was wiped and 65nCi of Cs-137 was removed. The source in the holder was examin:x! under a CCTV system and, although there was evidence of damage and debris, no cracks or holes were observed. To prevent spread of contamination, the source was cast into a two part epoxy block.
Visual appearance of the bull plug is that of a well used item, but not badly damaged. The "O" ring was in reasonable condition. The face of the tungsten backshield was coated in a fine brown powder. The appearance of this powder w of finely ground rust. A vigorous wipe of this brown powder covered area removed 13nci. The projection of the backshield showed evidence of having been in close contact with the weld of the source and may have been vibrating against it.
Cancinaian
- 1. Radioactive material has migrated from the sealed source to the outside of the bull plug.
- 2. . The levels of activity removed suggest that the source has not catastrophically failed. This conclusion is supported by visual examination of the weld.
- 3. If the weld has failed, then the contamination is associated with contamination on the outside of the inner capsule; see data sheet for CDC.CY4 sources.
Discussion This source was loaded into a bull plug that is screwed together. Normally, this type of bull plug is spot welded to prevent the bull plug unscrewing. It is possible that in use, the bull plug became partially unscreveed, allowing the source tmove when experiencing vibration down hole. This could have resulted in wear to weld, resulting in the release of contamina'. ion.
Re-ommendation It is recommended that bull plugs of this type be assembled with spring washers to prevent the movement of the source and subsequently be welded with a full circumferential weld.
- 04. 25. G '? O1 : 41 PM
- A M tI n t; H A M conP o, s, A, po3 4
O g ( ; - - . ,
A E # 'mi g 4
\ c ^%W 4
EE ! : .
s M L 3 f -
F j :
F~
e I Y,Mh 5 h
8 w
ss O
eli gh.
g 04. 2 *b . O "I O1 4 1 P NI
- A M II R S H A M CORP ca. S. A. P04 4
2 Ci Cesium-137 Gamma WeII-Logging M ,
Source asodel Number COC.CY4 e-~ ,.c,-#
gGemme s . Q( *:
4 Description
$Uf, c y 92.tQlMW hroms W.=to..nw' ym h.$a .. t The CDC CY4 2 C Cesn.m.137 gamma source s specifica !y ;pt5a %x ,g c; (p:uy%
H k. , ' ( J e P , D-designed to meet oil ar.c mine at .coging cntera This source c,t ,; Qis ' a
- F' % f*h 4 ,* g. yd*q t
cesign is covoie encapsuiateo in an Armco 17 4DH stainiess *51 pf j g ' y j,Q jq c . (.,p ster *l oVtef caos le and an Al$1316L nner C40sule. Ihc .p- 'T*Y N h ' , b $ / ;* %-
.0 % .r..,. .,7,.ch Cs 137 is centamer:in Amersham s un.Que ceramic matrm g (, ' n ., p .. W Ifr @g'?QQ . n W g?y %;py I.g;Ugif to ensure the etegnty of lre source. The Cs 137 ce'amic is . r manufactured by tinng a s mcial Ca.13/ comocuna. nneiy he .- . ek r. 4 -g .4 - i V &
homogenaco SiO, ano strengt ening age-ts in scecial casts 1,: y.gMW7 HK6 A niform scac ceramic matra is formeo. ncorporaung the $j '0, "tF p u 7~g%te g t"S N4.l ,y'y p {%
Cesen 137 racionuchce Tris matr:x :s insottie e aires: ; p 7 .g,W yM ,,4., 4 (( p.3+ . y 'f -
every ord nary solvent anc immcouec for tno most rugged i dn y, -d.m type et abuse cunng .se Amersnam as cesigrec .his -
V g" .. ; .. "J3W source to te tre satest poss cie encaos tation Tris scurce
.s reg sterec uncar roce: namoer CDC CY4 cy :ne NRC.
l[FN.i
=
g.Q.r *p -Q(
p.p w([.Qf J,p f.d arc adcJionaly meets tre more s;nngen: eau.rerer:s "g .L'.rGerc M] fi & ' urg@$ { G '
. h or no Texas 9egulations for Can ro: ct Rad a::en Par- s ., # e 7. p y 30100(a)(3) a o the ucu sia a Acmnistrat.on Coce ..- %..*; [ ]Q s V,f .t -
33 XV 2017 A 3.
eye.
) . . .
. .fv g..g g,wt L .
p Q. (t .i. Y. b ' a%(*'
10 3 %w.. .~h Ame'sram sources are suconed with certited Outou; .
t*
measurements. This ensures : hat me scurces S pcled cons steng rreet 'ne sceed.ca:.cns recu: red to tcrr ation
, 3' E 7. .. M. *%h MT"L
. i . '"V censity measuremen:s-a cors;cerat e aavan: age cse' Amersham Featuros scurces s cci.ec oy rom.na content atone . ;gety A!t scurces are at couo.e encapsuiatec construction cnnianrg tre actiwty in an insolucie ano non dispers o:e '
ce'ame term M sources are ec.vicuaay oressure testec
'o 25.000 psi
- Requiatory Aoprovat The CDC CY4 has caen reg stered for welWogging socacations ey the US Nue: ear Ragula:ory Commission (NRC) Acdstenady they meet the more stnngent
'ecuirerrents of :he Texas Regulat.ons f0' Centro
.~,w-.. .. ,_
R U 3 n. Part 36108(aK3) and tre Lousiana Y 5 Mb.., ,w e"&u& $. h'! Acmnstrat.cn Ccce 33 XV 2017 A 3
$'.X80h,4D$gp$ n,,
g:p'if.
t$ **/. 1 g
- H:gn Integ'ity CaOsLles a*<paQF, 4 Oniy the rigrest cuah:y sta r less steel is used to produce sa:M' Yg, *,g% .', g Ci" 4 g'43,,,, [; [.s[d'y a.
MM Mw . s. '% 1. " h t - d' h' h'ghest .nteg'ity capsuies avadacie All comoonents are cudt to sati'N criteria for o,I wetl-;cgging as containec I 'f' ANSI N 542 v77 Alt mecming stee:s are Quarant;ned M.h% . 4%h
( e Ame'snam conded wareno ses until accepted oy it*.h W " $ M Q Sj , p~
(
, p* y ) h.,'?M ; Acbe 4
A_'
i h' &
- <5.*.M
[in,' *v '
['41 mersham cuahty cont'oi
. "3 tao'e C, :
M o' M )- Out 1*
dhh*isiew,
~.
'M',pg e ,
[e gh..d',p%'O$-
W, -
- b.' 41d2 '
h Source to sou'ce cutout wil not vary ov greater inan : 12 %
and are s sady wi;h:n 2 5**. Tighter tomrances can be
- p. :). ,.y..
- y. y,Q,' .-Q $....'h 8-Q maintarea on request Suurte cesign ensures : hat actiwt.
- 1 r.
- .- ... 4 .4 s .
W no: r ove sc outcut var 2es wdh 14me. oniy oy cecay.
- Laac:ng Facmt es Scurce cacrg nto cos:crer cesgrec ouil p.ugs o' nose caps ha tao e uoon recues:
- Meas.tement Assurance An ersna~ oarhcicates .n :nrc:rrcarison programs wo-TSI inc GTer national !acoralcr.es to ass ,re ou*out "ledsue*em dCCwdu v Amersham
'. *D - 25. O7- 01 i 41 PM
- AMERSHAM CORF Q. S. A. PO5 Product Specification Shipping Isotope: Cesium 137 maximum loading uo to 2.3 Ci The US DOT regulatons in 49CFR 173 435 and the inter-Ucensing: Registered cs NRC model number COC.CY4. natonal transport regulatens in lAEA Safety Series No. 6, Hall Ufe: 30 years 1973 Revised Editon (as amended) allow 510 Ci of non.
Accommended working hfe: 15 years special form Cs 137 and 530 Cl of Cs 137 in special form ANSI / ISO classification. C66534 to be shipped in a Type A package.
Ceruficauon: Documentation ' hat each source has passed Amersham supodes USA DOT 7A Type A packaging for Quality Assurance and Measurement Tests is provided. sniement of 2 Ci Cs 137 sources. Custom designs and Insert Compositon CsCt. SiO, and various satts which Type B packaging available upon request.
are mixed by a special process and fired into a ceramic becomes cherrrcally bonded to the inner source capsule.
Closure Method: Tungsten Inert Gas Welding How to order Capsule Matenal: Armco 17 4pH stainless steel outer Orders may be placed by mail, fax or ie;ephone Each order capsule /A!St type 316L inner capsule should include the following informaton:
Pressur6 Rating: 25,000 psi, (30.000 psi available on request).
Source identificaton: Each source bears engraved data 1. Purchase orcer number and/or contract number and qu taten number d appkade.
for identification and traceability. Additionallabethng as required in the Texas Regulations for Control of Radiaton, 2. Ship to address.
Part 36.108(a)(3) aind the Louisiana Administration Code 3 Invoice address cescripton.
33:XV.2017.A.3. can be added il needed.
Chemical Punty: >99.95E CsC1 Chemical separation a. Catalog number and product design.
employed to remove Ba 137 decay product to maximize 5. Quant ty required.
the specific activity and output.
6 Smal product reawements, d any.
isotopic Purtry: Cs 137 36 atom % (typicalty)
- 7. De':very date required.
Quality Assurance 8 Specialinstruccon.
Wipe test, To meet ANSI N.5421977 Appendix A2.1.1.
The source is weed with a swaD or tissue, moistened with 9 In the United States a USNRC or AOreement State license ethanol or water; the activity removed is measured. Limit; number is requirec. A similar recuirement exists in Canada 0.005pCi. for AEC8 licenses. A copy of the appropnate license is reawed to be on file at Amersham before sh,pment.
Bubble test To meet ANSI N.5421977 Appendix A2.2.2.
Tho source is irnmersed in a suttable liquid (etnanecci) and in the USA and Canada persons or organizations processing.
the pressure in the vessel reduced to 100mm of mercury. using, selling, or transporting radioactive matenals must be No bubbles must be observed. licensed by a na;ional authonty or state govemment agency.
Users of radioisotopes snvuld famillanze themselves with all Output Measurement: Intercompanson with seconda y aoplicable regulations.
Natonal Labo,atory standards.
In the United States, a person who wisnes to use radioacuve Pressure Test: Eacn source capsute is subiected to sourcet must pcssess an appropnate USNRC or Agreement a piessure test regime involving pressunzing the capsule State license.
to 25.000 psi and holding for 15 minutes. The pressure is released and the process repeated three ames. Pass / fail I Canada all users must possess an AECB license.
cntena involve weight gain of the capsule and abihty to satisfy a mechanical integrity inspecton. - Caution Product contains radioactive matenals. Contents are dan-
- gerous. Rerrote hanchng required. Do not hammer, onli into, Nuclear Data: f.,esium-137 saw into or otherwise breacn the integnty of the capsule,11 perucie energies eteetromagneue 'n doubt, refer to your insttudons standard procedures for and trensinon treneitione radioactve materials or contact local authonties, type - probotnitues photon photons of energy trenaltlen energy emitted per haaratse dec.ey MeV probeeeitty May oisintegration 6- 0.s12 94 6 %
130y) 1.174 s4%
via 'mBa (2.6mt 0662 55.1 %
internal converson ewctrons Ba K x. rays -8%
662. o 624 78% (0.c324038) 68a 0.656 t,37%
662 C.661 0 37 %
Amersham Corporation
--._e--.-
T 9 6695 * (708) 593-6300 mersham S*'
Amersham Canada Limited 1166 South Service Acad West. Oakvme. Ontarc L6L 577 (416) 8471'Ef r(aco) 3?7 7 t6o (On'."he) * (800)'387 7146 (.est of Canaca;
b c
=
Attachment 6
4 e
i 6
4 1
4 a
j A
?
i i
e 7
1
~~~--rc~rrrx x mcrrrrrr. q.gryrrng.gyxq:g. oxrgy .s;g.n ggggg,_x ;.
d i
- J 4
( E p Mom. ton.ng Services y eo son smus . esion stmas mwow . masa coot nmi4m . six nmi4iu g I, e SE ALED SOURCE LEAK TEST CERTIFICATE I$
>i ' e
- lD 0 1
(
3 TUCKER TECHNOLOGIES INC. '
{: 12607 EAST 60TH ST. SOUTH @%
o TULSA ,0K 74346 $
i ATTN OF: R. NITZ $
C FILE fI 1793 .,
l I D
( S FILE _1_744 3 &
'f fa N FILE 4gg INVOICE NO DATE @i
( o l"
l$
RADIONUCLIDE <% 1 'M l$
l Z
$h n An iVITY '
Ci SERIAL NO 1 n 't a cW ?
l
( M
( ; WIPE DATE G 4 0 44 7 WIPED BY h
s
> EFF 94n f$
GROSS CPM 4fM BKG CPM ?1 NET CPM 444 h
( I g hl +
3 NET CPM = MICROCURIE
- 6 f EFFX2.22X10 DPM/p Cl Q ,
g 5 '
W THE ABOVE SOURCE WIPE TEST HAS BEEN ASSAYED IN ACCORDANCE WITH OUR RADIOACTIVE .,
l P MATERIAL LICENSE AND THE APPROPRIATE REGULATORY REQUIREMENTS THE REGULATIONS W
DEFINE A LEAKING SOURCE AS ONE FROM WHICH AN APPROPRIATE WIPE TEST HAS REMOVED lb
'd 0.005 MICROCURIE OR MORE OF ACTIVITY, 'b i t i t 4 2.01E-04 THE REMOVABLE ACTIVITY WAS MICROCURIE
- 8
.2 Y
ASSAY NO. 041297 54 DATE 04-12-19 97 bA tw
\
I ASSAYED BY _ / __
b m__mm-mmwarawx : ws. a _ _ _ - _
.i.
Y s
Attachment 7
J
I!Apr-20-07 03 27P-N55I 713.641-G153 ,Pto l -
'k g.
-l MONITORING SERVICES PO BOX 500640 HOUSTON, TEXAS 77258-0648 (713) 641-0391 . .
' f ax (713) 641-6153 fax l
to: RANDY NIETZ-I fax ft: 918-252-4496 from: CHARLES-T. GALLAGHER f
date: April 20, 1997 subject: PRELIMINARY RESULTS pages: . 2 NOTES:- SEE ATTACHED
.-~ - .- .- - . - _ . . - .......- -- - -. - - . - , - . . .. ~ . . .-
1 e .- 1 713 G41-G153 P.02.
{- Ap r*- 2 8 - 9 7 03:27P NSSI WIPE SUPVEY REPott -
0428199i c0erra I.sc DATE 001.LK n 04 25-97 DATE COUNTL 04 28+97 CALIBRit!0NStAD&RDCS-137 ETFICIENCY~ .95 705 R TI N W its -
AffN: RANDY Nitft-12607 E. 60f'l $f. 50Lil TULSA OK 74146 WIPE l CPN BG NET CPM ETT DPN UCl/100sqca- IDCATION
......... us 3 :::::::========= ==.........==...................... ==3c 3........................ : 2.
1- 47 32 55 0.95' 58 0.3104 PIT WRIQ 16340W HELD 2 66 32 34 0.95 36 0.2E-04 13f8A-010LASTTVOL 3 42 32 10 0.95 11 0.5E-05 SOURCE STIG
/
SIGNATURE N DATE Y~ I S-'f 2 5'
J
Attachment 8
l l
l
, O 4. 29.97 O91 1O AM
- AMERSHAM CORP Q. D. A. PO1 FAmersham OSA -
Page 1 of 5 FAX TO: Randy Nitz - Tucker Wircline Amersham Corporation 2636 Soeth Clearbrook Drive FAX NO.: (918) 252-44 % Arlington Heights, IL 60005 FROM: Paul Mellor tel(847) 593 6300 fax (847) 593-8091 DATE: April 29,1997 Al Tie Line ext,541
SUBJECT:
Report
~ Attached is appended report.
Regards, Paul Mellor Commercial Operations Manager j
. 04. 2O, 97 09: 1G AM wAMERSHAM CORP Q. S. A. POO l
e 6
0 1
s __
O' '
r_ - :- ,
j( ~
'ap i'
. LWR j ,
w t .
l 5 %
x u 1 1 mgg, a
.FA?/ 8 4
k 4
. 04. '2
. 9. 9 '? 09. 1G AM + AMERSHAM CORP Q. S. A. PO3 2 Cs Cesium-137 Gamma WeII-Logging . . 4 '
u Source Model Number CDC.CY4 ,
l 1
\G ' f s u i. *: { N ..j .
f' l Description h h i I .f; . ~
t ,- , ; r. ; . .. .
[ 9,' M(5 }Q
[G.
Tre CDC CY4 2 C Cesium-137 gemtra source $ S0eCifiC&!!y ""*'
. aMn [, a >
! '. J 3
designec to meet oil and mine'ai iogging Cnte'la This source .-l .,4 - *. . .;,7 h.'g. t( y design is double encapsulated in en Armco 17 4cH stainless p. , T.,y- ? * ,- - ' ~ . i v: +- e steet outer capsule and an AISt 316L incer capsute. Tho .g, - Ty J i ^ jr .
C5137 is coatalnoo in Amersham's unique ceram'c matrix , : } .? b - * -
to ensure the integr.ty of the $0urce. Tre Csa57 ceramic is ',,' q .
,e
' ' '- t g
.y 6 manatactured by ter a soecia! Cs.137 compcut 1, f nely ' h . . -tri .m t .,g ; . .. + -
horrogenized S.0, and st enginening age ts 'n specia. casts. <: ,. : ; j '. > - t.- . .s -i y , ..;
A Uniform $0hc ceram!c mat *4x is fctme0. :ncorp;raMg me ,- , 1,, .
(- - M , '
Costurr-137 radienuchce. This rnaN is :ns01.c e c. air ost S'
'* % L' \ ;
/,%
- *?- -
'I -
eve'y orcina'y 50%ent aPd It' mock 203 f0r inc most rug;e3 .
t
'. p 17. d, 'S ;8 - V tyDC Cf Souse Cur ir'g use. Amersham has desigecd INS x.p' i ,,. - ? )
sou'ce to Do the Safest DCSS10 0 enca0$ulat en Ths hource c n.. t 3' . . M 64 n (- .
.4;1 .y is registered unce# MCC91 numOer CDC CY4 by t"ie NRC. s- u' a*d add t onsdy meets taa more s;reger.: reOu rea'c'"5 b .1 hg' ' ," * .(
. , 2 * ;,j[k
- l. : p ,. 7 y-of the Texas Reguta:icas for Control c' Rad c9Cn. Par: 1 4, i ~ 's- . . "i '.
36106(a)(3) and the Lou sien4 Administre:4n Ccce 0 j .? Pt.t il c g - J pg, ' ,, d
)' .. j ' y ' .)
33 XV.2017 A.3 g , , . },jtggi, f' ' i -
t
.,.t,'+ .
. ?, M.' - .,.-* i .i-;
Amo'Snam Sources a'o supoited with cert.1,ec outaut i.h :p.sd*%'_
medburemen:s. This ensures ina; tre 30v'ces 5000i ed :._ ' C [h. .!. T* '" ' '.. . h'M . */ " '"-' v ,
consistent:y rnee: tne spec.ricat cas ro;wf uc fc' fcc a9cn ce-L:y measurements-a COFsider&O e advt.ntage cuor Amersham Features sources seDO.iec Cy *o%A&. 00nt6nt alcao
- Safe *y A i soJrces are of coub!e encaogulate0 ccostr ct on conta ning the 8CI'vity la AS ns0lubie and non G sCers ble ceramic to'M A;l sources s'e ndedvaly Dressa'e tested to 25.000 osi
- Regu a:Ory Aoproval
~ e COC CY4 has bee
- reg sterec for welJogg ng acci:Ca.:cns ",y t e US Nuc ear Regulatory Comm. scion (NRO). Acd i;onaly they meet the mo'o stringe-t recur:1'c ts of tne Texas Reg.Istions for Cent'c
- g. .I g. ,
c' Rac;e'.on. Dart 36103(a)(3) a'd tne Lousiana g y ,
Administ'a:cn Cece 33 XV 2017.A 3 gg ,
j g O e - gh :nteg ity Capsules p 4 ,, ,;p gM -
On y t-e n gaest qua tty eta-nier.s c: eel is used to p'ocuce Ne t9e highest integrity ca;swles ava!!ao'e Al' compo entb
~
l :
a p s [p. fsp
- t are budt 13 satis'y C'ltera t0r oc wolWogging as contatnec 4
y p,- g
+
hy ,
r ANSI N 542-1977- Allircoming steels are quarantined
.n Amo' sham conded ware cuses untri accepts: Cy j 4 l jf@ M
" fg* h ja hq , .1 Aversham Quatty conteol.
A y
- Stao+e Ocat 1 gg ,
y, ' d
.yby,C.{# q Scurce to soo ce outpa wil no: very by greate> '.na 212%
>. W and a'e ;.ssaly w!tme : 5% Tignie' toierances can be M. '..%. .**.. :p(. . dt;A1[y
@M.U h .m '.Yc[gb',.' *
. , . . .. 'nainta: rec er recuest. Source cosign ensu'es t a: actrny
,;: ne;, cve, so ocut var es with tir o. cnly by Sacay.
.2
- Lead ng :acat es Scur ce inacirg .nte c.stome ces:gneo ou i ol.;s or rcse caps a<ar ab e opon ea.es
- Meas.rement Ass.rance Amo'sram pa" cioctes ,n r:orcomca' So* C*cg'ams
- P.
NtST anc cine' na;-ena atuatones to assu'c o.:c.t
- eas rement accu r acy Amersham
. O 4. 29. G '7 OGt 16 AM = AMERSHAM CORP C. S. A. PO4 Product Specification Shipping Isotope: Cesium 137 maximum iooding uo to 2 3 Ci The US DOT regwations in 49CFR 173 435 and the inter.
. Licensiog: Registered as NRC moder numeor CDC.CY4. national transport regulat;ons A lAEA Safety Series No. 6 Half Life 30 yea o 1973 Rovised Edmon (as amended) allow s10 Cl of non.
Recommended working IMa: 15 yea s soecial form Cl 137 and 530 Ci of Cs 137 In soecial form ANSI /1SO classification: C66634 to ce s*Jpped in a Type A package.
Certification: Documentat:on that each sourca has passed Amersham supptes USA DOT 7A Type A packaging for Qua:lty Assurance anc Measuremore,sts is ptvicec. sniperent of 2 Cl Cs.137 sources. Custom des:gns and insert Composition: CaCL SiO, en" .aneus sa:ts which Type B E ickaging available upon request.
are mixed Dy a spec lal pr'noss and f. red into a ce*amic becomes chemically bonded to the inne' source cacsu!e.
Closure Method: Tungsten inert Gas Wetd:ng How to order Caosule Material: Armco 17 ApH stainioss steel oute' Orders may be placed by mall, fax or telephone. Each order capeute/AISl type 316L Inner capsule should include the following information:
Pressure Rating. 25.000 psi. (30.000 pel availabte on request). p ,g , gg g, ,g Source ident;fication: Each source bears engraved data quotation number if applicabte for identification and traceabihty. Aodttiona: taber.ir'g as required in tne Texas Regulations for Cont ol of Rad:ation. 2. Ship to address.
Part 36.108(a)(3) and the Louisiana Administration Code 3. Invoice address description.
33;XV.2017.A.3 can be added If reeded.
Chom! cal Punty >99.95%. CaCl Chemical separaton 4. Oatalog number and product design.
omployed to remove Ba.137 decay product to maxim!Ze 5. Quantity reovired. .
6.Scec'al pr0 duct requirements, if any.
s' loot p c r C 3 38a % (typically) 7.Det + date required.
Qualtty Assurance B. Sot ' d instruction.
Wipe test. To meet ANSI N.5421977 Appendix A2.1.1. 15tates a USNRC or Agreement State bcease The source te wiped with a swab or t.ss.+e. moistened we E M t4 -
number n :wuired. A similar requirement exists in Canada Cthanol cf water; tne actvity removed is treasured. Litrut; 0.005pCl. for AECB bconses. A copy of the appaopriate license is required to be on file at Amersham before shipment.
Bubble test. To meet ANSI N.6421977 Appendir A2.2.2.
in tre USA and Canada persons or organizations processing, 4
The sourco W immersed in a tuttabie liculd (ethanediol) and us:ng seIng, or transportmg radioactNo matenals must ce the pressure in the vessel roduced to 100mm of rnercury, No DubDies must be observed, licensed by a national authonty or state govemment agency.
Users of radforsotopes should f amiliarde themselves with all Output Measurements intercompa*! son with seconca y appncable regulations.
National Laboratory standards. h t*e United States, a person who wishes to use radioactive Pressure Test: Eocn source capswa is sub!ected to sources must possess an oopropriate USNRC or Agreement a pressure test regime involving pressun:my the capsule Sta o I; cense.
to 25.000pst and hoida.g for 15 m.nutes. Tne crossure is retessed and the process repeated three times Pass /fsil in Canada 0:1 users mi.,st possess an AECB license, criteria involve weight gain of the caosule and a0ilFy to aabsfy a mechanica! integnty 6nspection. Caution Procuct centains radioactive materia!s Contents are dan-gerous Remote handling recuired. Do not hammer, drillinto, Nuclear Data: Coelum 127 saw into or otnerwise breach tne Integrity of the capsu!e. It
! perucie energies ciectroenesceuo in coubt. refer to ycur institut!ons standard procCdures for end tronettion trenaltione radica0tive matenals or contact locai authonties, type probatWiltnee photon photone of e iergy trenettion energy ornNted per half-Iffe decay Mov protetWtity MeV dietntegration j
S- c512 04 t%
(scy) 1174 s.4%
. vte *r5Ba (2 6m)' QEE2 84.1 %
tr: terra: conve<e.on e,ectross Ba K X4eys -s%
862. 0.224 76% (c 03M c38) 061 c.656 1 37%
6C2. 0 681 c.37%
, Amersham Corporatfor 2630 South Cleare oc4 Cr"ve. Arar'oton. HelgNs. !L 60005 (800) 323-6695 e (708) 503-63co 88*d1 Amersham Canada Limited t166 Soutn Serv ce R:aa west. Oaule. Onta o L6L 577 (416) 8471166 / (BCC) 387 7'E0 (Cet/Oue! * (800) 397 7146 (*est et Ca aca)
0 4. = 2 9. ,9 7 o u 'r_ 1 _c m: -AwarmonAs con, a, g, ,, pog 4-
- Examination of a 2Cl Ceslum.137 Oil Well Logging Source for Tucker Technology, Oklahoma j hernduesian p On April 14, Randy Nitz of hcker Technology inforrned Amersham thai 5,7aCl of ranovable contamination had boon detected on a routine wipe test (March 11,1997 of source 16340W, Amersham product code
- ' CDC2742, model number CDC.CY4). A subsequent wipe test on April 11 showed 3.0nCi of removable j contamination. Although this subsequent wipe test was below the $nCl action level, Amersham agmed to
- examine the sowoc. %e source was originally supplied in August,1992, o
Evaluatlan j- -
De somoc was received at Amersham in the standard shipping container for this type of source when loaded j
into a bull plug; see stanchad drawing. Inidally, the c re at the back of the bull plu6 was wiped.
cane ==iaseir=21evels were amasund atless than backgrcuni Subsequent wipes of the source area, the barrel
' and the thread,rimoved a maximum of InCi Tbc source holdct was then unsomwed and the source weld was -
wiped and 65nct of Ca-137 was muoved. The source in.the holder was examined under a CCTV system and,
- although there was evidence of damage and debris, no cracks or holes were observed. To preycat spread of contamination, the sourse was cast into a two part epoxy block.
Visual appearance of the bull plug is that of a weIl naaA l'am but not badly damsged. %e '0" ring was in remanaahla condition. De face of the tun 6 sten harkahleid was coated in a fine brown powder %e appearance of this powder was of finely ground mst. A vigorous wipe of this brown powdcr covered area mmoved 13nci.
b projection of the backahield showed evidence of having been in close contact with the weld of the source and may have been vibrating against it. De design of these bull plugs requires two rings between the source 3 _ and bull plug. Those "O" rings were not present.
! chi . ro-e.i ,
A wipe of the inside of the shipping contalact showed that it was frce of contamination.
l Canclualan
- 1. Radioactivo material has immigrated from the sealed source to the outside of the bull plug.
- 2. %c levels of activity removed suggest that the source has not catastrophically failed. %is conclusion
!- is supported by visual ==1 nation of the weld.
- 3. If the mld has failed, then the contamination is associated with contamination on the outalde of the inner capsule; sec data abcst for CDC.CY4 sources.
! Discunnian nis source was loaded into a bull plug that is screwed together. Normally, this type of bull plug is spot i welded to prevent the bull plug unscrewing It is possible that in use, the bull plug bocene partially unscrewed, allcwing the source to move when experiencing vibration down hole. %is could have resulted in wear to weld, resulting in the release ofcontamination.
amenmnwndmilan
- It is reconwaanded that bull plugs of this type be assembled with spring washers to prevent the movement of
- -. the source and subsequently be wolded with a full circumferential weld.
, 1 i
o i PaulMellor %
April 29,1997 4
--