ML20235L235
| ML20235L235 | |
| Person / Time | |
|---|---|
| Site: | 07002436 |
| Issue date: | 11/30/1981 |
| From: | Baxter T MASSACHUSETTS, UNIV. OF, HARBOR CAMPUS, DORCHESTER |
| To: | |
| Shared Package | |
| ML20235L131 | List: |
| References | |
| 00338, 338, NUDOCS 8707160622 | |
| Download: ML20235L235 (16) | |
Text
FORM NRC-313 I U.S. NUCLE AR REGULATORY COMMISSluN
- 1. APPLICATION FOR:
(3 80)
(Check and/or complete as appropriate) 10 C F R 30
' APPLICA1lON FOR BYPRODUCT MATERIAL LICENSE
- a. NEW LICENSE INDUSTRIAL See attached instructions for detarts.
- b. AMENDMENT TO:
LICENSE NUMBE R Completed appliavons are bled in duvicate wuth the Division of Fuel Cycle and Material Safety, Ofhce of Nuclear Materist Safety, and Safeguards, U S. Nuclear Regulatory Commission, c' 9g Ngp,L 97 Washmgton, DC 20555 or apphcations may be filed in person at the Commission's office ut g,cgnge nuuggn 1717 H Street. NW, Washington D C. or 1915 Eastern Avenue Silver Sermg, Maryland.
ggy_3sg5 I
- 2. APPLIC ANT'S N AM E (Institution, firm, person, etc.)
- 3. NAME AND TITLE OF PERSON TO BE CONTACTED REGARDING THIS APPLICATION University of Massachusetts Harbor Campus l
F X. Masse Radiation Safety Consultant TELEPHONE NUMBE R; ARE A CODE - NUMBE R EXTE NSION TELEPHONE NUMBER: ARE A CODE - NUMBER EXTENSION 617-245-6600
- 4. APPLICANT'S M AILING ADDRESS (/nclude Zep Codel
- 5. STREET ADDRESE WHERE LICENSED MATERIAL blLL dE USED (Address to which NRC correspondence notices, bulletins, etc.,
(include Zip Code) should be sent.)
DorChester, MA 02125 Physics Laboratories, Science Bldg.
(IF MORE SPACE IS NEEDED FOR ANY ITEM. USE ADDIT {ONAL PROPERLY KEYED PAGES.)
- 6. INDIVIDUAL (S) WHO WILL USE OR DIRECTLY SUPERVISE THE USE OF LICENSED MATERIAL (See items 16 and 17 for required training and experience of each individual named below)
FULL NAME TITLE Leonard Catt, Ph.D.
Professor of Physics a.
b.
Martin Posner, Ph.D.
Professor of Physics C.
- 7. R ADI ATION PROTECTION OFFICER I A ttach a resume of person's trainmg and experience as outhned in items I 16 and 17 and describe his responsibihties under item 15.
I Leonard Catz, Ph.D.
i
- 8. LICENSED MATERIAL L
ELEMENT C H EMIC A L NAME OF MANUFACTURER MAXIMUM NUMBER OF i
AND ANDIOR AND MILLICURIES AND/OR SEALED N
M ASS NUMBE R PHYSICAL FORM MODEL NUMBER SOURCES AND MAXIMUM ACT4 E
(1/ Sealed Source)
VITY PER SOURCE WHICH WILL BE POSSESSED AT ANY ONE TIME NO.
A B
C D
Monsanto Model 5f
+
3
.prlgeg Pu - 238 Scaled source
- 2724-B
~~
d L gtd (O I n. Wn l0 $
i (3) l 14)
DESCRlbE USE OF LICENSED MATERI AL l
[
[
For use in a J. L. Shepterd and Associates Neutron Howitze Model 179 for m
laboratory experiment s and student i n st ruCt ion.
"m UU338 en -r rr?
<3>
8707160622 d70 P OEC10 sal m
REG 1 LIC70 F ORM NRC 313 I (3-80)
- 9. STORAGE OF SEALED SOURCES k
CONTAINER AND/OR DEVICE IN WHICH EACH SEALED NAME OF MANUF ACTURER LMODEL NUMhER N
SOURCE WILL BE STORED OR USED.
NO.
A.
B.
C.
N) J. L. Shepherd Neutron Howitzer J. L. Shepherd Co.
179 (2)
(3)
(4)
- 10. R ADIATION DETECTION INSTRUMENTS TYPE M AN U F ACTU R E R'S MODEL NUMBER R ADI ATION SENSITIVITY y
OF NAME NUMBER AV AIL ABLE DETECTED RANGE N
lNSTRUMENT lalpha, beta, (milbroentgens/ hour E
gamma. neutront or cour,ts/ minute) no, A
B C
D E
F alpha, beta' 1
m 0-20 mr/hr j
G M end windov Baird 420E 1
gamma alpha, beta, 0-20 mr/hr
)
(2)
G M end windOr Eon Corp.
701 1
1 enmma alpha, beta, 0-5 R.hr a)
Ion Chamber Eberline ROI 1
enmmn (4)
- 11. CALIBR ATION OF INSTRUMENTS LISTED IN ITEM 10 d a. CALIBR ATED BY SERVICE COMPANY Ob. CALIBRATED BY APPLICANT N AME. ADDRESS, AND FREQUENCY A ttach a separate sheet describing method, frequency and standards used for cahbrating instruments.
F. X. Masse Associates Inc.
I
- 12. PERSONNEL MONITORING DEVICES TYPE SUPPLIER EXCHANGE FREQUENCY (Check and.'or complete as approperate.)
(Service Company)
A B
c d h, FILM BADGE
( MONTHLY R. S. Landauer Jr. f4 CO.
O(2) THE RMOLUMINESCENCE O QUARTERLY DOSIMETE R /TLD/
O (3) OTH E R (Spectly):
O OTHEn (Specify):
l
- 13. FACILITIES AND EQUIPMENT (Check were appropriate and attach annotated sketch (es) and description (s).
Oa L ABOR ATOR Y F ACILITIES. PLANT F ACILITIES FUME HOODS (Include /dtration, i/ any), ETC Ob STOR AGE F ACILITIES. CONT AINE RS. SPECI AL SHIE LDING (Ioxed and.'or remporary), ETC.
I C c REMOTE H ANDLING TOOLS OR EQUIPMENT, ETC.
Od RESPIR ATORY PROTECTIVE EQUlPMENT. ETC.
tt IF COMME RCI AL WASTE DISPOSAL SE RVICE IS NOT EMPLOYED, SUBMIT A DETAILED DESCRIPTION OF METHODS WHICH WILL BE USE D F OR DISPOSING OF R ADIOACTIVE WASTES AND ESTIMATES OF THE TYPE AND AMOUNT OF ACTIVITY INVOLVED IF THE APPLICATION IS FOR SE ALED SOURCES AND DEVICES AND THEY WILL BE RETURNED TO THE MANUF ACTURER.SO STATE.
FORM NRC 313 I (3 80)
W e
INFORMATION REQUIRED FOR ITEMS 15,16 AND 17 Describe in detail the information required for Items 15.16 and 17. Begin each item on a separate page and key to the application as follows:
15.
RADI ATION PROTECTION PROGR AM. Describe the radiation protection program as appropriate for the material to be used including the duties ani responsibilities of the Radiation Protection Officer, control measures, bioassay procedures (if needed), day to day general safety instruction to be followed, etc. If the application is for sealed source's also submit leak testing procedures, or if leak testing will be performed using a leak test kit, specify manufacturer and model number of the leak test kit.
16.
FORMAL TRAINING IN RADIATION SAFETY. Attach a resume for each individual named in Items 6 and 7.
Describe individual's formal training in the following areas where applicable, include the name of person or institution providing the training, duration of training, when training was received, etc.
- a. Principles and practices of radiation protection,
- b. Radioactivity measurement standardization and monitoring techniques and instruments.
- c. Mathematics and calculations basic to the use and measurement of radioactivity.
- d. Biological effects of radiation.
17.
EXPERIENCE. Attach a resume for each individual named in Items 6 and 7.
Describe individual's work experience with radiation, including where experience was obtained. Work experience er on-the-job training should be commensurate with the proposed use. include list of radioisotope <.s and maximum activity of each used.
i
- 18. CERTIFICATE j
(This orem must be completed by applicant) i The applicant and any official executing this certificate on behalf of the applicunt named in item 2, certofy that this application is prepared in conformity with Title 10. Code of Federal Regulations, Part 30, and that all information contained herein, including any supplements attached heretn, is true and correct to the best of our inowkdge and belief.
WARNING.-18 U.S.C., Section 1001; Act of June 25.1948; 62 Stat. 749; makes it a criminal offense to make a willfully false statement or representation to any department or agency of the United States as to any matter within its jurisdiction.
- a. LILENSE FEE REQUIRED
(See Sectinn 170.31.10 CFR 170)
/ flh*A M VYIL f
- c. NAME (Type or pront) 3ltomas Baxter
- d. TITLE m UCENSE FEE CATEGORY: ] 7(), } } % c)
- e. D ATE (21 LICENSE FEE ENCLOSED: $
None 11/30/81 FORM N RC 313 I (3 80)
)
m
- h rt i T1 PO971eT. Ph.D.
l W
Page Two TR AINING AND EXPERIENCt; CF EACH INDIVIDUAL N AMED IN ITEM 4 (use woodemearol sheets J a.cessary) 8 TYPE OF TRAfNING j
DUR ATION OF ON THE JOB FORMAL COUR5E j
WHERf TRAINED g
TR AINING (Circle answer)
(Circle onswer) o Principles and practices of sodichon er r 7Tniversity 1 56;67~
(No pro'ection Beth Israel Hospital, Boston 1970-80 (Ye' ) No Yn l
l b Rod,occtety meosarement stond or dino-(Yes ) No Yes ( No )
tion enti monitonng techniques and en.
It et strumenes Mo*hematici and calculooons bosit to the, (Yes ) No Yes ( No) c vse end measurement of tod oochwity }
d 8+ological e#ects of rod.abon 9 EhPERIENCE WITH R ADIAT!ON
( Actual vie of radioisotopes or etvivalent emperience )
150TOet MAXIMUM AuOUNT wHERE f XPf alf NCE W AS G AINf D DUR ATION OF EXPERIENCE TYPE OF USE I-131 100 mci Beth Israel Hospital 10 yrs Medical I-125 25 mci Beth Israel Hospital 10 yrs Medical N-13 100 mci Princeton University 4 yrs Atomic Beam Experimei t
C-11 100 mci Princeton University 4 yrs Atomic Beam Experimer t 10 RADIATION Of TECTION INSTRUMENTS IUse supplementof shee s J necessary )
r TYPt OF INSTRUMENT 5 NVM822 RADI AflON SEN' fffvlTY RANGE WINDOW THICKNE$5 U$f i
(incfvoe move oad model n mber of each)
AVAll ASLE OfTECTfD (mr, hr)
(mg 'em')
(Meetormg, survermg. moosureng) u II. Mf THOD PREQUf NCY. AND ST AND ARDS USED IN CAutRATING INSTRUMENT 5 USTED A80VE 12 FILM S ADGf 5$DOSIMff tRS, AND 610 A55AY PROCf DURf 5 USED (For b badges. epecify method of cof brating and processmo, or nome of suppl,er )
INFORMATION TO BE SUBMITTED ON ADDITIONAL SHEETS IN DUPLICATE 13 FACILif ff 5 AND f oUlPMf NT Describe loberotory facilities and remo4 handimg equipment, storoge containers, sheelding. (vme hoods, etc.
Espionatory sketch of localsh is onothed (Csrcle mswer)
Yes No 14 R ADIATION PROff CTION PROGR AM Descr.be the radionen prosechen pro g om mcludmg cone ol m osures 18 oppl conon covers sealed sources, submit look sesbog procedures where opplicoble, nome, homing, sad esper.ence of person en perform neok tests, and erronge ments for performing inihol 'odiotion su'vey, se'*-
scmg. maintenance and repair of the source 15 W Alf f DISPOSAL lt a comme ciot weste disposol service is employed. speceiy nome of company Osherwise, submet detoiled description of mathods which will be used for dispesmg of radiocchve westes and eshmo'es of me type end amount of ochwity envol.ed.
CERTIFICATE (This item must be completed by applicant) to THE APPLIC ANT AND ANY OFFICI AL Enf CUTING THIS CERTIFICATE ON SE HALF OF THE APPLICANT N AMfD IN ITEM l CERTIFY THAT THIS APPLICATION 15 PREP arf D IN CONFORMliv WITH TITLE 10. CODE OF FEDERAL REGUL ATIONS, PART 30, AND THAT ALL INFORMATION CONTAINfD HEREIN, INCLUDING ANY SUPPLEMENTS ATT ACHED HERETO.15 TRUE AND CORRf CT TO THE BEST OF OUR KNOWtfDGE AND BluEF.
License Fee Category e ApplicovH nomed en item i Fee inclosed 8 Date Title of certifying official WA ANINO,-18 U. 5. C., Sechen 1001; Act of Jose 2 5,19 4 8, 6 2 Stot 74 9. makes it a crimenci onense to make a willfvily false statement or representation so any department of agency of the United Seases os to any maner within us sunsdiction.
e U,$. G PO r 1 R 7 3-5 43 12 6/515
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.ee a APPLICATION FOR BYPRODUCT MATERIAL LICENSE
' de '
- a a-**27 I
to cet 30
\\
INSTRUCTIONS-Complete items 1 through 16 ef this is an initial application or an apphcation for renewal of a hcense Inforrnation contained en pre-vious apphcations filed with the Commission witn respect to lte ns 8 through 15 may be incorporated by reference provided references are clear and specific Use supplemental sheets where necessary item 16 must be completed on all apphcations Mail two copies to: U S. Atomic Energy Commis-sion Washington, D C.,20s45 Attention. Materials Branch, Directorate of Licensing. Upon approval of this application, the applicant will receive an AEC Byproduct Matenal Licent.e An AEC Byproduct Material License is issued in accordance with the general requirements conta;ned in Title 10 Code of Fed-eral Regulations, Per a 30. and the Licensee is subject to Title 10, Code of Federal Regulations. Part 20. and the hcense fee provisions of Tit 410. Code of Federal Regulations. Part 1'0. The hcense fee caleQory should be stated in item 16 and the appropriate fee enclosed. (See Note in instruction Sheet).
l- (o) NAME AND STREE T ADDAESS OF APPLICANT (mst, tut on. him hosperas per-lib) STRtf f ADDR E 55it 5) AT WHICH BYPRODUCT MATERIAL WILL Bf USED. (If son. etc loctude ZIP Code and seiophone n mber )
d>Pe ent from llo). include Zip Code )
u 2 DEPARTMENT TO USE BYPRODUCT MATERIAL _ _. ~. _ _ _. _ _ _. _.... _ _ _ _..
3 PRf VIOUS LICENSE NUM61R(5). (if this is on opphcot.on for renewol of a heense, please md.<o e and gave number )
s y-_.--
4 lNDiviDU AL USER ($j l Nome and hele of sedeveduoff s) who well use or derecfly
$ RADIATION PROff CTiON OfflCf R.
(Name of per*on desspoofed as rodeoteon pote<-
supervase une of byproduct moreveal.
Gove tronnung and espercerme en tre-ns 8 and 9 )
hon omcer d other the endsvudval user.
Alfach resume of hos tro nmg and enperrence os en items 8 and 9 )
6 (c) BYPRODUU MATERIAL (flements f (b) CHlMfCAL ANDr OR PHY5iCAL FORM AND MAxlMUM NUM8ER OF MILLICURit$ OF EACH CHEMICAL ANDr OR PHYS-and mass number of each )
{
iCAL FORM THAT YOU WILL PO55155 AT ANY ONE TIME
('l seoied sourcen), also state nome of monudochtrer, model number, es scher of sourres and moomum o<tivity per soune )
i I
f
- 7. D($CRist PURPOSE FOR WHICH BfPRODUCT MAff aiAL wtLL Bf USED (tt byproduct motorial is for " human use. " supplement A (Form Af C 3 3 3o) must be complesed on heu of thes reem If brproduct mo*eren! ns en the form of a sooned source, melude the make and model number of the storoge contonner ondier dernce un wksch the soune will be stored and/or used )
(Contmved on reverse i.de)
i N. l._ <.
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- Q < '3[ ' n Q Q i y[
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J4+-g 64 y p.
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.S. NUCLE AR REGULATORY COMMISSION Fosu NRC 313M SUPPLEMENT A U
88-7a)
TRAINING AND EXPERIENCE AUTHORIZED USER OR RADIATION SAFETY OFFICER
- 1. NAME OF AUTHORIZED USER OR RADIATION SAFETY OFFICER
- 2. STATE OR TERRITORY IN WHICH LICENSED TO PRACTICE MEDICINE Leonard Catz, Ph.D.
- 3. CERTIFICATION SPECIALTY BOARD CATEGORY MONTH AND YEAR CERTIFIED B
C A
- 4. TRAINING RECEIVED IN BASIC RADIOISOTOPE HANDLING TECHNIQUES TYPE AND LENGTH OF TRAINING LECTURE /
SUPE RVISED FIE LD OF TRAINING LOCATION AND DATElS) OF TRAINING LABORATORY LABORATORY A
B COURSES EXPERIE NCE qHours)
(Hours)
C D
' NIT Nuclear Chemistry Dept.
2 50
- s. ~R ADI ATION PHYSICS AND INSTRUMENT ATION 1967-68 4
100
- b. R ADIATION PROTECTION
- c. MATHEMATICS PERTAINING TO 2
10 l
THE USE AND MEASUREMENT-OF RADIOACTIVITY 2
1()
- d. RADI ATION BIOLOGY
- 5. EXPERIENCE WITH RADI ATlON. (Actual use of Radioisotopes or Equivalent Experience)
ISOTOPE MAXIMUM AMOUNT WHERE EXPERIENCE WA0 GAINED.
DURATION OF EXPERIENCE TYPE OF USE Po-210 1 Ci Soreg Nuclear Center, Isra al 1962-1967 research 1962-1967 research Pu-238 1 Ci Rb-88 5 mci MIT 1967-1968 research fly-203 5 mci MIT 1967-1968 research Bi-20e
- > mC i U Mass Boston 1968-present research I
Yb-169 5 mci U Mass Boston 1968-present research
\\v-195 5 mci U Mass Boston 1968-present ~
research f
FORM NRC-313M Supplement A
,Page5 t&7s) x-
'o Additional Information on U Mass Harbor Campus SNM-1093 Renewal Question 13 (a)
The howitzer is used in the physics laboratories for teaching and research purposes.
Contact dose on the exterior of the howitzer (the source is locked in place) is less than 4 mrem / hour, hence providing some spacing between the bowitzer and occupied areas for the relatively brief periods of exposure represents adequate control.
(b)
The controlled access physics lab in which the howitzer is stored is equipped with a six-inch-thick-walled concrete cave into which the howitzer is rolled for storage.
A rolling concrete door, which is also equipped with a lock, completes this enclosure.
The i
external dose rate on this cave is well less than 1 mrem /hr in this locked, controlled, well-labeled laboratory, access to which is controlled by the two users.
l (c)
The source is fixed in the source tube which is locked into the howitzer.
Removal of the source is not necessary in use.
(d)
No respitory equipment is necessary.
Question 15:
Radiation Protection Program for Student Use A 5 Ci Pu-De neutron source has a neutron output of 1.1 x 10 neutrons /sec.
When unshielded the source will give rise to a fast neutron flux of 120 n/cm see at i
-- m a distance of 1 meter which is equivalent to a radiation level of 14 mrem /hr.
(See " Operating an_d Experiment Manual for Model 179 Neutron Howitzer" Page 4 l,J.
L.
Shepherd and Associates, 703 S.
Pacific, Glendale, CA 91204).
The same source when housed in the neutron howitzer will give rise to a radiation level at the surface of the howitzer of 4 mrem /hr (See above mentioned manual, page 1).
During any given semester (roughly equivalent to one calendar quarter) students will be working with the howitzer for time intervals totaling 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> at most.
It is estimated that out of these 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, only two hours at most will be spent in the immediate vicinity of the howitzer (positioning samples for irradiation, etc.).
During these two hours, the students will receive a whole body dose of 8 mrem (at most) and a hands and forearms dose of 246 mrem at most (the quantity of 246 mrem was arrived at by assuming that when positioning samples in the howitzer, the students' i
hands will be exposed to the bare neutron source at a distance of 34 cm -- this is of course a gross overestimate).
During the remaining 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> of their work, the students will be exposed to radiation at a level of less than 1 mrem /hr, thus receiving a dose of less than 10 mrem.
Accordingly, during their 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> of work with the neutron howitzer, the students will receive a radiation dose of:
whole body:
18 mrem at most hands:
146 mrem at most This exposure (overestimated as it is) is still far below the 25 percent of the limits specified in paragraph (a) of Section 20.101 of the U.
S. NRC Rules and Regulations.
The specified limits are:
whole body:
25/100 x 1250 mrem = 312.5 mrem hands:
25/100 x 18750 mrem = 4687.5 mrem.
_--_-_-______O
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+
' Leak testing of the sealed source will be performed n-G-month intervals by F. X.
Masse Associates Inc.
Howitzer will be stored in facility described in 13(b) whenever it is not in active use in the student laboratories.
Question 16, 17 Resume's of training and experience for both users are attached.
The above renewal application, plus the entire neutron source program has been reviewed and approved by the UM/ Boston Radiation Safety Committee.
That committee and its operating procedures are described under License #20-15242-02.
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I OPER ATING AND EXPER MENT. M ANUAL FOR
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1 MODEL 179 NEU TRON HOWITZER l
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-T a bl e o f C r.n t.e. n t s Serial No.
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OPER ATlNG INSTRU CTIONS
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l Descript on l
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Personnc 1 E.:posure Guide R ad ia tio t Pro tec tion Guide Cha r t Source H mdling and Security, includ ng appl cable exce rpt~, f rotn Title 1) CFR Pa t20 II E XP E RIM E N TS
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A-1 The produc tion of R adioac tive Tsotapus by Neutron Bombardrnent A-2 Thn de te rmination of De ta E ne r g y 1
A-3 Th Determinn tion of H alf-Life l
by Decay In asuremont, a
A -4
' Ac tivation Atialysis
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d-2 Separatiun vi Fast and The rm t Neu trone 53 - 3 SCO.ll':ril).g of Eil:i t '!Uu t rol's l
". ~1 Ou,mtit t ti.
Measu rement at N t tron F1t :.
3-5 Thormal Neu tron C rc is Sec' tor De te rmi ta tion C-1 Ho c Aluni Cha n:is try--Th > Pro luc tion of Ca rie r--free D romine C-2 aun Produc? C h 2 rn i s t r y - if c..'e m 03 ic' e f
C-3 Fit niun P ru h :t Chemis try--:01 J tz b d e :..m i P
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C f l A li 'I S 1.
Selected The rrnal Neu tron Ac tivation Reac tion U ne. ul in Neutron De tec tion and Ac tivation Expe rimen ts 2.
Ile t t Particle R ange Energy Cu rve 3.
G ra >h Showing the Most Efficient Dis tribu tion of Counting Tinte Be tween Sample and Ibichg round 4.
R e solvin;; Tirne -E rror C.
Error in Counto per 31inute as a Function of Totn!
Count and Lang th of CounL 6.
11c ta E:ni tte r.s by Ene rgy and IIalf-Life 7.
Neu tron C ros s Sec tions fu r Ilyds ogon and Boron (ev) 8.
Neutron Cross Sections for Hyd; ogen and Boron (mev) c.
To tal Neu trun Crcs s Sec tions fo - Indiu m :.nd Cadmium 10.
Fas t Neutron Attenuation in Cylindrical Containers of Pa raffin and V/ ate r e
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_ _F_S_ C._.H. _H_.' T P? N J. L.S. Model 179 neutron howitars are designed :or experimentation in t ie prope rtic4 and effects of neutrons.
T he units 1 ave a minimum of t :irteen (13) inches of shielding in all dir::ctions,
. e : tron sou rce '/i th an ou tp'.i t of 6 :,10 and will hold safely a
he neu t ron i owitze r is shipped on a palle t and is provided with a j teel t ally with th r :e (3) v. heels.
Model ! T) comes equipped with the f->llowim;:
1.
One centor piug with attached hoicier for n eutron sourc '.
2.
Two 1 1/2" anodized aluminum ! olders and spacers for hori :ontal ports.
3 Thr< e (3) locks and three (3) loc sing pins for securing ports a nd cente r plug.
4.
One 1 1/2" cadmium cylinder.
5 One experimen t holde r for inse r tion into c ad mium sleeve.
6.
One c::periment manual.
1 he basic unit can easil;. and safely hold ten curies of plutonium-buryllium 1 he surface level of a 5 C1.15u-Ee sourc e le less than 4 mrem /hr. when it the s torage posi tion oi when in the ac t!vate powion with plugs inc e r ted.
P P 3R ATION l oils 01 a varie ty of rep rescnta tiv: rnate riale are. w i!a ble to lie ac tivn ted,
> c::pi:> re the nho ncme m,
t-of neu tron ac t. vu tion.
'- :pe rtruca ts a re S u g q u 3 l e d LO [!tVv 3 ti"h le f f!v Cha n! Min O ' th C at: 1.i\\ h tiU ti p ROC e F S, Ihe
- ha rac te r of re e:ut una tc'elldes, the the radiation pa t Le rnu of the isotopes produc nl. dis tr.bu tion < >f the neu tron :lu x, anxi
'" h e foIia ar-tobe 'ceined ca.refuHy and insn cted in the :n vitics or
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2 ous reproducible loca tions in the cadmium-lim d c ylinde r.
The
' n ! w. i n a informa tion is off ered as rep: e:sente nvo of the flux dir tr!.bu-
..e for slow neutrons encountered in the appro:.imation to an infinite
- w t repic medium offe red by the pa raffin moderato r in the Mo lel 179 i vv itze r.
Relative Ac ivity d-
.. :' Position 10 :t'nce from
- o cente r Cado ium Caver !
(..ches)
Bare Silve Foil Sib er Foil
- 0. 5
- 1. O C 0,17
- 1. 0
- 0. 9
- 0. 16
- 2. 0
- 0. 7 t 0.12
- 3. 0 0, 5e 0.06
- 4. 0
- 0. 2 r 0.05
- 6. 0
- 0. I 1 0.03
- 7. 0
- 0. 07
- 8. 0
- 0. O f burces are shipped to a cus tomer with a leak tu t ce rtificate, andit i s gene rally re ;uired that additional h ai; tes ts be [ erformed a t si3:-
r ian th in tervr.is.
.: ps v o..: ' < pm u
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m m s1 his dLiv is offered as a guide to aid in e, silua ting stanned exp rimenta s hich inay in;h'de some elemen t of e ;posu re, i
l
' he c rito rior of 1. 3 x 10' n/cm /w :ek (5 mrem / a ek) !.s de : i /ed fro m t
2 tost es tric tione; pinced on lice - m's i n u s : n r: sources in res tric ted ere 2 r e :. ;,
Thes res t ric tio ns re quire that n.) person v hc i s M nc'.e r e : q h te e n i
sca:
of ap u, hall be exposed to more the n ten per cent of prev.or ;1 7 5 tr 0 d Hmits '1 1/ ! r. m!: 1h edt : cuar te -).
Th i < <> n
'1, e r c e n t : m it. - hich i?.; n're m,cear' r,
. ould !ca-i tu rc o tric tion t i 10 m rcm /,':c' if r "it u et:
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to lm pn,o rat,med fo r 111 - e c E s o f a c1m r t r.
This
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': c e h,ll be, a u..oli < I a nu e r,ui r c c:
.rt-o u, e a u.n to nr i a h' ou r sonnel e
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3 I. a t:uuld b,. no tod tha t th e e.spesu re re s t rLe tiarrs dis cu s s ed a rn fo r t he w hoje bod y.
E t re m i t t e s,, hands and forearros or f en t and enkin ; are 1: nitte<! to an exposu re which may be gre 2ter 'than the whole body fic,tre b o r a f ac to r o f fi t te e n.
' 7 11 1 2.al lituitationa a re those based on the cale nde r qua rte r, a nd the dis-u nston no re vi '. "ehly linit ts mus t be recognized to be, as previeu tv m e n tioned, for planning purposes.
There is no legal res triction o iv.
I r i te at v hten the y ci rle rly dose is rece: ed, although prudence ma c irb-ine such res tr:c tions.
t I sh uld :.l:a; ht reite ra ted tha t this pre s.:n ta tion pre sumos some. l e rn e n t o.a pusu r" such ts would be encounte red in f ree a'r use of r. neutrur.
lo r th" J. L. She pherd and J.s so :iate s hou itze r, Ihe shicJding
> >u r c o.
_yetor o: upproxiniately 4 5 eliminates any neces.,ity of such concern or pe rsonnel exposu re du ring all expe rin tents whe:t the source is e t ev r e :! 1:' tn e h o w i t.< e r.
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1 H ANDLING OF NEU"'RON SOC RCES l
The following information is offored to a:.d in obse rvance of the ret;ulations l
of 10 CFR P' rt 20 in regard to pos ting and relatec. precautions. Applicable a
parau raphs tollow.
The J. L. Shepherd and Associates howit ser, as a container, as well as the oom in whic h it it-l o c a te d, must be lab ( led with ( ecals and/or sis lns prov ded.
c h ic h s :' y " C au tio n, R adioactive M ate rie ls".
A'id Lionally, a label must state uu an ti t y and :ind of radioactive material and date >f me a surement. Locks
(
dr other me; ns of insuring accurity are eouired.
J. L. Shepherd and
.\\ssociates h r.vitzera include proper loc!s for this purpoce.
j Che J. L. Sh pherd and Associates howit ',cr shoulC not be labe.ed as a adiation arc a, since the shielding i-; su< h as to ri ciuce the neutron flu: to i
vell below tl e le vel recptiring such label s.
The r<.om eontaini g the howit.e r l
- s also exem pt from posting because of t te adequa.c shielding >rovided in l
- he howitze rs Tree air use of neutron sources may ma w posting neceasary or desirable l
l (Note 20. 204(c)) and s'igns are provided ;or this pt.rpose.
Neutron aources will occasionaUS be har d!cd with tongs in air and without
.;hielding dua ing trans fe r trom one conta.nc r to an >the r o: dur'ng free air l
.'xperimente.
The foHowing information will be uneful in evaluation of l
adiation dor e under such conditicnn.
l
- lource Strer ith Neutron Output Fas t N 2utron Flu >
Mrem /hr s t or e 'Me ter at one Meter C. 230 Pu-Be
- 2. 2 X 10(' n / s e c 20 n / s e c / c r#'
- 2. 8 or 241 Am-Se Ehis dMa tr y be applied to a particular situation ;y the use of factors to
- orrect for ourct a trength and io: othe dis tance s than a met er.
For th' a tte r t!" in e.se cu a re inw i s applic a'o lo.
T he l iological tol a r < nc e-ia :;o nuch e reate
-or ;!ov neutrons that the5 are igno ed in these mearuremer ts.
REGU L A 00M ' FitOM TITLE lo. CO F OF FF DEM AL RECiU L Ai KS
.P /d L T
- 2. 0 W'C.
', ' t
'I
(..)
t\\{(hdl'it.
- e..
.-t mdLan My a e a, accessi312 to pe r.;o,tu,: t n v hi '
'e e.. <: t ; radi s t ion, originnt n~ in "chcle or in pari vcititip icen d
-i n. d euch !cvels th1t n Saje. portion of the b >dy could m e :i a-
' / : rf t m hou r a dose in e.;c. a :4 of. se millirem or ilt a n;" fi, e J o n ?; M !, I s
!.if 3 "t dose in enCeS9 o f ! O C 17 t t ' !i re m.
i.
' ' (,' ; ' ' A ' ',
rl' tior ns a tir p irep r,1; t l 1 13 co.,
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uit. tion caution c
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S:a c. 2 0. 2 0 3 f ( ? )., nd < ( 2 ) " Cont ai ne s (1) E te n c on t::i ne, in which ia ed a quantit y ( f a m, lic e n t o <, rna turial (ouier thaa
!: an spo r te d,
- tored a t n n-Ju ral u raniuni or thorium) greate- 'hr n the riua:ltity of much in i.tr:rul Specified in Ap:mndix C of this par t c h;d i be.. a c urabb. clearly /intble labal bearing the radia tion caution y; riel a nd t it w o r d :,- CAUTlWi R A DIO ACTIVid.i ATTRI AL(S). " 'ihe labels ur:t ! red in thi i po rnaraph shall utate also the quantitica and kinds of
..dioactive inatorials in the containers and the date of tacanurernent of the cu.tutitieu. "
Sec. 20. 204_(n) " A rac:n or area is not re4 aired :o be nos ted with a cautic n sign becaus of the pr.,e nce of a tiet source 1:rovided tbo mdintion le <ef i
twolve inci
'rmo the surface of fl.c sc urce cont ainer or hauaing does nc t
- ceed five niillire
- , pe r hou r. "
l r
Se c. 20.202 'M " Cau tion sicrns are not ree,ui: ed to be pos ted at areas o
o r rooms c nt.:ining r"dioactive roate ri ih, fer p ' iods of leo: than euht hours provi la<' that (1) the mate rials ar 3 cons teni ty atte nded du rine; such :,c riods by
..n individent wh > shall 1:J.e the pre c.w.tions ne c e :u ary l
t :posure of any inns in this p art and (2) such area c roorn is ::unj ect to the i !ce ncee's co ltrol. "
l 10:
iJser f J.
L. Sh<nhords nd A oc ia.te > Lloc ci 179 Ilowr ze r and Enpe rim en t '.ianual 1
The enclosed set cf - (perinu:n', v ere desic ned to develap an I
unders tan <line of 1:
interac tirin o. neu t rons with mattm They l
include inany of h :;asic labo ra t ory techni]uen requir<. d in courses of nu e !1 -
chemistry m 1 physics.
Throug!. your cmn
<:nts, correct:cns 4 nd a iditions the ; resented l
material vciil be i proved.
We w alet ue yc ut active pa rticipation in our endeave r to i:nprove :>ur se rvice at J. L. She phe rd and As socie te s to you.
and otht :. s ;itu tion: il the field o nuclear science.
J.
- 14.. shepherd md Ase nci,i n l
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i US NRC REGION I
'BI DEC 3 pt; 2 97 l
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