ML20247D577
| ML20247D577 | |
| Person / Time | |
|---|---|
| Issue date: | 05/16/1986 |
| From: | Steven Baggett, Stephen Bell NRC |
| To: | |
| Shared Package | |
| ML20247D582 | List: |
| References | |
| SSD, NUDOCS 9805150098 | |
| Download: ML20247D577 (16) | |
Text
. _ _ _ _
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REGISTRY OF RADI0 ACTIVE SEALE0 SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO: NR-608-0-101-S DATE:
PAGE:
1 of 5 gg(16 M DEVICE TYPE:
CheckMat MODEL:
Gamma Ray Unit, Model 150 MANUFACTURER:
Stratec Eleckstronik GmBH im Laemmle 2 7534 Birkenfeld 2 West Germany SEALED SOURCE MODEL DESIGNATION:
Amersham Corp. AMC.25 IS0 TOPE:
MAXIMUM ACTIVITY:
Americium-241 50 millicuries LEAK TEST FREQUENCY:
6 months PRINCIPAL USE:
(D) Gamma Gauges CUSTOM DEVICE:
__X__YES NO CUSTOMER USER:
Krones, Inc.
9600 S. 58th Street Franklin, WI 53132 l
l 9805150<>98 ENb0516 PDR RC SSD PDR
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REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE gg PAGE:
2 of 5 l
N0:
NR-608-0-101-S DATE:
DEVICE TYPE:
Check Mat The gauge is comprised of the shielded beam source and an analyzer target-l mounted in an inverted "V" shaped housing. The beam source is mounted in one leg with the beam aimed at the opposite leg.
In the opposing leg an analyzer 1
is mounted to receive the incident beam. The unit is designed so that the analyzer target intercepts the entire beam diameter emitted from the source, thus providing shielding in the direction of the beam.
In use, filled bottles are passed between the source housing and detection, interrupting the beam from the source and resulting in an antenuated signal at the analyzer.
The Radiation-Source-Holder c9nsis S of a lead tube of 2mm wall thickness which immediately surrounds the source capsule. This tube is open on one end j
which confines the dispersion of the beam and directs it. The opposite end of l
the tube is closed with a lead cap plug that provides shielding in the opposite i
direction of the beam and serves as the locking device that holds the source I
I capsule securely in the holder.
Surrounding the lead tube is a brass block that serves as the main structural support for the source and the lead shield.
The exit end of the Source Holder is bolted to a vertical brass plate of 2mm thickness which serves as the bracket for mounting to the 2 mm thick stainless steel instrument housing.
A 1mm thick shutter covers the exit hole of the source holder in the "off" or
" safe" condition.
The shutter mechanism is designed as a Fail-Safe device.
It is spring loaded in the closed position and opened by means of a selenoid, the shutter is only open when the power is applied to the Gauge. When the electrical power is removed, the shutter is automatically closed. On the back side of the instrument housing there is a viewing window that exposes a flag which is connected to the shutter.
By this means, the position to the shutter is verified.
The Radiation-Source-Holder is housed within the Inspection Head.
the Inspection Head comprises a 2mm thick stainless steel housing which surrounds the Radiation-Source-Holder. Access to the Radiation-Source-Holder is controlled by fasteners that require tools for removal. Access is accomplished by removing three acorn-type cap nuts from the removable cover of the Inspection Head.
Inside the Inspection Head the Radiation-Source-Holder is held in place by another set of fasts.ers.
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REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE N0: NR-608-D-101-S DATE:
PAGE: 3 of 5 DEVICE TYPE:
CheckMat LABELING:
Labeling of the Model 150 Gamma Ray Unit will be done in accordance with 10 CFR 20.203.
DIAGRAM:
See Attachments 1, 2 and 3.
CONDITIONS OF NORMAL USE:
The manufacturer reports that the environment in which the gauge will be used will be room temperature and humidity conditions.
In addition the environment will be dry and essentially dust free.
Even though the environment for use is very controlled, the gauge is designed to operate in an environment with a temperature range from 32 to 160 F, relative humidity from 0 to 100%, a moderate amount of dust and incidental splash of water spray.
PROTOTYPE TESTING:
No testing of prototype design was performed. The user relied on the ANSI N542 Classification of the source to demonstrate integrity of device. The custom user will be determining if the device will operate under the specified condition. The device is tested for removal contamination prior to shipping to Krones, Inc.
EXTERNAL RADIATION LEVEL:
The manufacturer reports that with the exception of within the useful ray beam the exposure rate around the inspection head is less than 0.075 mrem /hr measured at a 10cm radius from the surface of the inspection head. At 100cm radius from the surface of the inspection head the exposure rate is less than 0.05 mrem /hr. The useful ray beam is shielded completely by the opposite arm of the inspection head.
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REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO: NR-608-D-101-S DATE:
Mf16 g PAGE:
4 of 5 DEVICE TYPE:
CheckMat QUALITY ASSURANCE CONTROL:
All Quality Control and inspection certificates will be filed and maintained by the Radiation Safety Officer.
The custom device will be loaded with the source and tested for compliance with the design specifications at the facilities of Amersham Buchler. The following methods and eequipment will be used to verify compliance:
A.
Radiation profiles will be measured at 5, 30 and 100 cm from the surface of the device, with the shutter open and closed.
B.
Visual inspection for cracks or other defects of manufacturing will be made at the time of source loading.
C.
Verification of beam control operation by means of the shutter solenoid function will be made after the source is loaded.
D.
Leak test prior to use.
LIMITATIONS AND/0R OTHER CONSIDERATIONS OF USE:
The CheckMat Model 150 shall be distributed only to the specific licensee referred to in this document (Krones Inc.).
The device shall be leak tested at SIX (6) month intervals using techniques capable of detecting 0.005 microcurie of removable contamination.
Handling, storage, use, transfer and disposal: To be determined by the licensing authority.
This registration sheet and the information contained within the references shall not be changed without the written consent of the NRC.
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REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE h
N0: NR-608-D-101-S DATE:
g i6 g PAGE:
5 of 5 DEVICE TYPE:
Check Mat SAFETY ANALYSIS
SUMMARY
Based on our review and test data cited below, we conclude that the Gamma Ray Unit, Model 150 gauging device design is acceptable for custom licensing purposes.
Furthermore, we conclude that the device would be expected to maintain its containment integrity for normal conditions of use specified in this certificate.
REFERENCES:
The following supporting documents for the Gamma Ray Unit, Model 150 are hereby incorporated by reference and are made a part of this registry document.
Krones, Inc. letter dated October 31, 1983, with enclosures thereto.
ISSUING AGENCY:
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ENCLOSURE 1
.u Old Reg. Number New Reg. Number ModelNumber(s)
NR-522-S-143-S NR-522-S-873-S A-5799 NR-G 08-b-t ol-S ivR-B64-961-s cAfcunAT
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SOURCE AND DEVfCE EVALUATION TECHNICAL ASSISTANCE REQUEST i
T0:
STEVEN BAGGETT, RMSS/!MNS, Mail Stop OWFN-6H3 f
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n PROM: W"' 3,,g, Sy Sr REGION: I II III IV V HQ(CircleOne) pc w gyou FTS PHONE NO.
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ST2 DATE:
APPLICANT _ _
_ LETTER / APPLICATION DATE i
MAIL CONTROL NO.(S)
LICENSENO.(S)
REQUEST ACTION (ChFCK APPROPRIATE BOX)
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(
)SOURCEREVIEW
( ) DEVICE REVIEW
(
) CUSTOM
(
) AMENDMENT OF REGIS1TRATION SHEET NO.
( ) OTHER:
FOR l#4SS/IMAL USE ONLY CONTROL NO.
'// ~1 Y MODELS:
- 2L-If DATE RECEIVED 8I/k REVIEWER _
TYPE OF ACTION (INDICATE NO. OF EACH ON THE LINES)
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(
)SOURCEREVIEW
(
DEVICE REVIEW l ~
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(
) FORMAL (gAMENDMENT
(
) CUSTOM 44
( ) NO LICENSING ACTION REQUIRED
^
TOTAL REVIEWER HOURS SPENT ON EVALUATION DATE COMPLETED NOTES:
DEFICIENCY LETTER DATE COMPLETED DEFICIENCY PHONE CALL DATE MADE RESPONSE TO DEFICIENCY TYPING DRAFT IN OUT FINAL IN OUT
- u:.;:.::.:.:..:.*************************************************************
FOR ARM /LFMB USE ONLY FEES THAT HAVE BEEN PAID FOR : (INDICATE NO. OF EACH ACTION ON T
( 1 AMENDMENT SOURCE REVIEW
(
)DEVICEREVIEW
(
) FORMAL
(
( ) ARM /LFM8
(
) CUSTOM NOTES:
DATE TO ARN/LFM8:
DATE RETURNED:
SIGNED:
DATE:
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MODEL#:
1
REFERENCES:
DESCRIPTION DATE Ch/DEF DATE DEF DATE REVIEWED RESP COM COMP (1)
Registrant's Name and Address (2)
Manufacturer's Name and Address (3)
Custom User's Name and Address (4)
Device Model Number (5)
Device Type (6)
User's Authority to Possess (specific, general, exempt)
(7)
Radionuclides, Activity (Max. w/% error)
Form, Manufacturer, Model, NRC registered.
DESCRil" TION (8)
Device Design with Complete Engineering Drawings (dimensions, tolerances, list of materials)
(9)
Assembly methods (screws, welds, etc.)
(10)
Source Mounting (size and lategrity) and Security.
ANSI Classification (43232 for gamma gauges)
(11)
Shutter Operation (12)
On.Off Indicator (lock in Off, not in On)
(13)
Safety Interlocks, guards, etc.
to prevent access to beam or high radiation levels.
Depleted Uranium (on label)
Corros!on with steel (copper /zine)
01 I
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DESCRIlrrION DATE OK/DEF DATE DEF IIATE REVIEWED RESP COM COMP Steel and Aluminum (Corrosion)
Source for well. logging (nondispersible)
RADIATION PROFILES
{
(14)
Survey Instrument used (type, window, call., sensitivity)
(15)
Conditions (16)
Nuclide and Activity (Maximum allowable?)
(17)
Distance form Source, Surface (18)
Shutter On and Off (19)
Source Shicided (20)
Scatterer (product) in Beam (21)
Guards and Shields in place INSTALLATION l
(22)
Fixed, Portable, Movable, l
Fixed installation but movable l
socree housing.
(23)
Inherent shielding, inaccessibility 1
I (24)
Interlocks, locks, barriers (25)
Beam Access; size of gap and opening to beam.
(26)
Mounting lategrity PROTOTYPE TESTING (27)
Tests methods and conditions (ANSt, ISO) l l
(28)
Tests Results l
l (30)
Years of Use (Incidents, failures) l
_ _ = _. - - _ _ - - - _ -
_ _ _ -.-=
Es O
l-DESCRIFITON DATE OK/DEF DATE DEF DATE REVIEWED RESP COM COMP QUALITY CONTROL (31)
Materials, subassemblies j
l (32)
Assembly methods (welds, screws, etc.)
(33)
Dimensions tolerances i
(34)
Activity, Radiation levels, and leak / contamination (35)
Quality Assurance Manual LABELING (36)
Copy of the label
)
(37)
Contents (modeI#. serial #.
trefoil, activity, lono.
Isotope _, " CAUTION. RADIOACTIVE MATERIAL", date of assay)
(38)
Material (39)
Dimensions (40)
Colors (41)
Attachment (permanent)
(42)
IAcation SAFETY INSTRUCTIONS (43)
Operation, Malatenance, Calibration, Damage / failure, Specific warnings, leak test, and radiation profile checks.
ACCOMPANY!Nti, DOCUMENTATION (44)
Results ofleak test and radiation surveys.
(45)
Transportation documente (46)
De Above Instructions (if user performs operation) s
c r) i s
DESCRIPTION DATE OK/DEF DATE DEF DAiE REVIEWED RESP COM COMP SERVICING (47)
Manufacturer or user performs:
Installation 1
1 Relocation Malatenance Repair Source lastall/ reinstall Calibration leak Testing Radiation Survey Training Foreign Manufacturers Drop ship Where is source Installed and who Installs it.
1 Wipe test / rad survey.
QA in this countn.
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