ML20247Q957

From kanterella
Jump to navigation Jump to search
Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Sealed Source for Model 4F6G. Certificate:NR-460-S-876-S
ML20247Q957
Person / Time
Issue date: 01/26/1996
From: Steven Baggett, Doug Broaddus
NRC
To:
Shared Package
ML20247Q961 List:
References
SSD, NUDOCS 9805290044
Download: ML20247Q957 (6)
v • d • e


Text

-

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO.: NR-460-S-876-S-DATE:. January 26, 1996 PAGE 1 OF 5 SEALED SOURCE TYPE:

Sealed Source l

l MODEL:

4F6G MANUFACTURER / DISTRIBUTOR:

3M Health Physics Services 3M Center, Building 224-2E-06 l

St. Paul, MN 55144-1000 ISOTOPE:

MAXIMUM ACTIVITY:

J Cesium-137 500.0. millicuries (18.50 GBq) l

\\

l l

l 1

l LEAK TEST FREOUENuY:

6 Months I

l-PRINCIPAL USE:

(D) Gamma Gauges l

CUSTOM SOURCE:

YES X

NO 9805290044 960126 PDR RC PDR j

. SSDr --,f j

(

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES l

SAFETY EVALUATION OF SEALED SOURCE l

l NO.: NR-460-S-876-S DATE: January 26, 1996 PAGE 2 OF 5 SEALED SOURCE TYPE:

Sealed' Source DESCRIPTION:

The 4F6G is a singly-encapsulated sealed source.

Cesium-137 in the form of 3M Brand Radiating Microspheres are inserted into a type 304 stainless steel tube.

The tube has an outer diameter of 0.500 in. (1.270 cm) and a wall thickness of 0.035 in. (0.089 cm) and ranges from 2.000 in. (5.080 cm) to 37.00 in. (93.98 cm) in length.

The ends of the tube are plugged with oven-dried fiberfrax.

The source is then cleaned until it passes a wipe test.

The plugs are then welded, the dimensions checked, and the assembly filed (if necessary) to ensure it meets the specified dimensions.

The 4F6G sealed source is designed to hold up to 500.0 mci (18.50 GBq) of cesium-137.

However, Ohmart Corporation, the manufacturer of the device in which these sources have generally been used, has indicated that the maximum activity for their device is 100.0 millicuries (3.700 GBq).

The overall length of the source is 1.000 in. (2.540 cm) longer than the active length of the source, which ranges from 1.000 in. (2.540 cm) to 36.00 in. (91.44 cm).

l DIAGRAM:

See Attachment 1 LABELING:

The side of.the source tube is engraved with the following information:

3M Company Model 4F6G - xxxx x mc Cs-137 l

l l

1 l

l

_--___-__-___-_A

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO.: NR-460-S-876-S DATE: January 26, 1996 PAGE 3 OF 5 1

SEAT En SOURCE TYPE:

Sealed Source CONDITIONS OF NORMAL USE:

The sealed source is intended for use in gauging devices made by the Ohmart Corporation.

PROTOTYPE TESTING:

This sealed source was approved for manufacture and distribution under a specific license issued by the Atomic Energy Commission (AEC) to the 3M Company in 1963.

EXTERNAL RADIATION LEVELS:

External radiation dose rates were calculated for a 500.0 mci (18.50 GBq) Cs-137 source as follows:

Distance Maximum Radiation Level (from surface)

(in)

(R/hr)

(Sv/hr)

(cm) 5 1.97 66.0 0.66 30 11.81 1.83 0.02 100 39.37 0.165 0.002 OUALITY ASSURANCE AND CONTROL:

The following quality control procedures were followed during production of this source:

1. After pressing the second plug in place (before welding it),

the source was wipe tested.

If it failed the wipe test, the source was cleaned and then retested until a negative wipe test was obtained.

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO.: NR-460-S-876-S DATE: January 26, 1996 PAGE 4 OF 5 SEATEn SOURCE TYPE:

Sealed Source OUALITY ASSURANCE AND CONTROL: (Continued)

2. Both ends of the completed source were bubble-leak-tested by immersing them in water at 200*F (93.33'C).

If any bubbles were observed coming from either end, the source failed the test.

3. The source was wipe tested again after the bubble leak test, and then wipe tested after it was stored for 7 days.

LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

This source may be used only by persons specifically licensed by the NRC or an Agreement State.

Handling, storage, use, transfer, and disposal:

to be determined by the licensing authority.

This source shall be leak tested at intervals not to exceed 6 months using techniques capable of detecting 0.005 microcurie (185.0 Bq) of removable contamination.

This registration sheet and the information contained within the references shall not be changed without the written consent of the NRC.

SAFETY ANALYSIS

SUMMARY

The Model 4F6G source is not a current product manufactured or distributed by 3M Health Physics Services.

However, 3M Health Physics Services will continue to receive 4F6G sources for disposal.

Based on our review of the Model 4F6G source, the information and test data cited below, and the original review and approval issued by AEC in 1963, we continue to conclude that this sealed source is acceptable for specific licensing purposes.

l l

l REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO.: NR-460-S-876-S DATE: January 26, 1996 PAGE 5 OF 5 SEALED SOURCE TYPE:

Sealed Source SAFETY ANALYSIS

SUMMARY

(continued)

Furthermore, we continue to conclude that the 4F6G source would be expected to maintain its containment integrity for normal conditions of use and accidental conditions which might occur during uses specified in this certificate.

REFERENCES:

The following supporting documents for the Model 4F6G sealed source are hereby incorporated by reference and are made a part of this registry document:

3M Health Physics Services' letters dated August 6,

1991, and December 3, 1962, with enclosures thereto Ohmart Corporation's letter of December 3, 1962, with e

enclosures thereto ISSUING AGENCY:

U.S.

Nuclear Regulatory Commission I

-Date:

January 26. 1996 Reviewer:

~

43ou las A. Broaddus

.Date:

January 26, 1996 Concurrence:

,7.

((/ Steven L.

Baggett

~

w__-__________________

1 l

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE 1

l l

NO.; NR-460-S-876-S DATE: January 26, 1996 ATTACHMENT 1

? A

,u. ~, ~m w$ r. w.- n _.

m av-v i.w

, <2 2 &~eg y

r. M,. ~. ~ x u e p.. m. n
n..

. n c @. -w.

. 4 v+.,

W] k'df%ew M '"h $ f.O]D.$m w a

leru uso C m w a s'I$

$Oh 9

3 b Yf kf$$5Ekb b8 $l

  1. 3mM us

-vutuket6W: MR%ypgch<

,$;.Qpu.g #.m&m W. %5%u,,c %

iph.y k30~s rM

.,igseQ.Wr s

h, m

f y %%.M $ $15 % 9l % Q [ g.. g Q : b $. h,(Q&&heQ ?gQ h

-!.f,,, ge. ~

y 2,h h k

  • A 8.(

a-

:k h

$Ib!

h

_u. W. N_5~%:

_~c~ M _ M+. W " L:.A D.T gJp z $.O u p c

..c D..n, rd

~_

m

~

i.

g W, 15 w

.x

.v

4. *g >

e 'v2 :c.

w w,

i ' *$ O n., * ' 3

.K$'(f,,,. u.a. :p.'.. Q; * - s '.' 4..w

.r jQ @y

  • a

..y

.,\\g e *.s

~

r....

,y.; ^ M %.,:lM~..:6%,?y' }@g;h&.

.g..J@*(74,&mfQg

I ff I e-7 *. i.

sy =.

.J6 r' p

M 9 e-s Rp%.;f9.l y%g p i%v m.:m.i AgMR.9,uwJuh. $,

xqa w

.?

a; Q u%.w< r w o+ y.

u

  • f.q W.; i 6y,J.Wf<.:: g,u' q

,[

u

.. - p

.a.

@&.~.&

y 4k W;

,' y+ w q,.

di

?'~~. 4 A

c..

. :)

n:,w. -.

4 m..;,v

. A' g

y..

.x

.~

eq N ["j:w'..Nyv

.'5 i'

w.: @ d W,,_e' 3[ e [ e'E. ~[U. M, y....,M. W...

. ~ A.. ^. m..W[ylk'b,i/c'Ur.'I,..

~ ~l~

.. M;' w.

h '. %a N # /.f'.

I,'.~sY.

a M; &, E..s 3,.

s w

Ic v

G,# >:$.4 m

p s..q

b

-. ;W@h %. l us D1Y',h' hQy4>'q [~-

s-(

I 8.-s'..

N.'s$ $ hy. '

.h. ",' fa@{9.& '. '.C 7 U A' g

&s,h:jb;q'. saW/

i f'l.l.%)f.. f~f.,a,.A sy..r(S.W'l ~ * 'fN.] f,

  • h.,i' ~ ".y%

Y

  • 9

'c-f W:

.f t

p '$ M W$'b$ }s.r* e.'j

.? Y.. N-

,f k. ' k h n

y t '

i

, -,'.' *v,; f.Aw%s gI h,

., ~.

' h t' ; e e'-

+

e A >Q,*;;Z.

  • r. >.-

^

L

%'s w

y d : ;.;. '; ;.,,

ql'-)T * ?;,% Y. 6 { i-l :.:.'

=

s>:

  • DS bY

\\

b gF

'w',,',,' n.Q t',,m x ':~j? ^i.M;.

' :,. :. '.,n;' ;"*. -i.5-l,cl'~ *

  • I.?l? 9% !..h 5 f.* '.lp,A k
  • Q <-%,n Q A i

. 1

. ',.?,

,s s

x.. y

,.M zl

.r..m,'a' 34. ;.;

e-4,,l9 M g y,r..f "

.-1 sr. V r... *,, 2.xWC$w :. w. c. :.

6, e

. h.' l.9 ~,.* ;

. n. g.<? s,Tj,'

y.

L,

+ y.rq e

g&y 2,

n..

s-w y

n, W,3^ mMj.of,)A G.. N.a.,

W w '

p d

  • 1 m#... *;.,' l'
  • . x <, ~rr.t 'a,

,t rt

.s.r ?

c

?. l.s' d?.c '". ".c. *. r.

W:-

A, %r y.

p.%p.v.~ w a

z

. gf..& &, [..b;p.< w~. )

y.

m r

A

,.5.,.

a

'h

'. '. :v-p.'

~ %Ir f,b$

~'

~ h.

w

  • 1..

?'

, lY - 5 Y '

/

.y.9..'N..

4 %,' -'* "

:% )W,k.% b.*w rf'M st J h..

.a-

+ n e { *'

  • /

c.'. ' '

F. ;

  • ;*W,g. (*, e -

h,, A :?

4 f.

j 'y

's a

'S:9.W l p '., f.';

t.

'. N.

't.

' '[

g.f, %'*..,,. $

t 4%..

r R

,,j,

n p.,4

..^

se,

7., ;m%.

.A*

4 t.

~,,

. 4:;.,

-I,(h k.,. '. k. '3.. 'f.;

)*h

. 'h[f*,

,v,[p ),.g,,.#,7,h '

.y 2

+~VM 'g.k.n'.s[*.

J '

x

, v? -) :m'; & g. i.f.Q

- x

.n.

t lc :.:,

., s 2 ;.,n,

w. *;;. f1*.*;f fW M'S i

" ' X ;'%

9 fe>m..Wpfe:..Wi~%X.P:<y&,e.c,uee'C.;.n

.3>..

., %.M W. C,..

'.s -

.. v.... :.e. 4,y Nw

,.nWa, tt.r.tB. om s n _,

q.

+

a. n

.e n

.96 $h,I,i' @,y?DMM.,

c 4 },[,,

,h n <

.j,,

eg,,j.,

,,,{,.f g

  • d.Y.c g

r.

a.M g;${f @ Q:@ f W

J 'j F

y Q g.,)i m. u., % *-;.&v ] m'. ';

na.w.

u.

g-s' i%.

r._

n.m T M N1,[F,,,,a,,( { Q py y L g - --

q..,,.s..pJ *NE TYREr30'...

r_

- - - 4 en

s f *%cy\\

UNITED STATES -

y .

g

,g NUCLEAR REGULATORY COMMISSION e

'f WASHINGTON, D.C. 20555-0001 j

/

l February 12, 1996 NOTE T0:

MINNES0TA MINING AND MANUFACTURING (3M) INACTIVE FILES hf FROM:

SUBJECT:

INACTIVATION OF REGISTRATIONS BASED ON AUGUST 6, 1991, LETTER.

A number of the background files for the registration certificates requested (by 3M letter dated August 6, 1991) to be made inactive contain limited information on the products. A search of 3M registration, archive, and license files, and information in NUD0CS was performed to obtain additional information. Also, 3M was contacted to obtain any additional information that may have been in their files.

3M provided limited additional information concerning these products and indicated that the information provided represented all additional information in their files.

Additional information obtained from these sources has been added to the applicable registration files.

At the present time, the information contained in the background registration files represents all available information for these products.

In addition, a number of these products were originally reviewed and approved by the Atomic Energy Commission (AEC). The reviews performed for these products to make the certificates inactive were based on the information available, the previous reviews and approvals, and the historical use of the products (i.e., reports of failures or design problems, or the lack thereof).

In several instances, insufficient information was available to perform an adequate safety review.

In these instances, the certificates have been reissued based solely on the i

original AEC review and approval, and no additional safety review was performed.

1)

I l

f BMPPb" d esyw m

3 I.

February 29, 1996 Robert G. Wissink 3M Health Physics Services 3M Center Bldg. 224-2E-06 St. Paul, MN 55144-1000

Dear Mr. Wissink:

This letter is in response to your request dated August 6, 1991, and subsequent letters, requesting to transfer to inactive status all registration sheets issued to 3M as listed in the first coluen of Enclosure 1.

We have transferred the requested certificates to. inactive status. The certificate numbers have been changed as listed in Enclosure 1.

Copies of the inactive certificates are enclosed for your records.

Please read over the registration certificates and notify us immediately if there are any errors or inconsistencies.

If you have any questions, please contact me at (301) 415-5847 or Mr. Steven Baggett at (301) 415-7273.

Sincerely, IS{

Douglas A. Broaddus, Mechanical Engineer Sealed Source Safety Section Source Containment and Devices Branch Division of Industrial and Medical Nuclear Safety, NMSS

Enclosures:

As stated Distribution:

SSSS R/F NE01 SSD-91-71 Registration certificate files listed in Enclosure 1 BCUMENT NAME: C:\\WPDOCS\\SSDS\\ INACTIVE \\NRC\\460lNACT. CMP 7e,meelve e orpy of this document,inelicate in the box: *C* = Copy without attachrnent/ enclosure

  • E* = Copy wth attechment/ enclosure
  • N* = No copy 0FFICE SCDB lB l

l l

NAME DABroaddus DATE 02/27/96 OFFICIAL RECORD COPY 4 pl"2-0 f

y&c52COGOS WP

i.

ENCLOSURE 1 REGISTRATIONS TRANSFERRED TO INACTIVE STATUS Old certificate No.

New Certificate No.

Model Number (s)

NR-459-S-101-S NR-8008-S-801-S 4F6Y NR-459-S-102-S NR-8008-S-802-S 3 FIG NR-460-S-101-S NR-0460-S-875-S 4F60 NR-460-S-102-S COMBINED WITH 4F6H, 4F6B NR-0460-S-874-S NR-460-S-103-S NR-0460-S-876-S 4F6G NR-460-S-104-S COMBINED WITH 6D6A NR-460-S-105-S 0

6B6F NR-460-S-106-S NR-0460-S-878-S 4F6P NR-460-S-107-S NR-0460-S-879-S IC2A, IC2B NR-460-S-108-S NR-0460-S-880-S 4F3B NR-460-S-109-S NR-0460-S-881-S 4F3C NR-460-S-110-S NR-0460-S-882-S 3MIC NR-460-S-Ill-S NR-0460-S-883-S 3MIB NR-460-S-112-S NR-0460-S-884-S 3E4G NR-460-S-Il3-S NR-0460-S-885-S 403A NR-460-S-114-S NR-0460-S-886-S 4D3B NR-460-S-Il5-S NR-0460-S-887-S 406D NR-460-S-Il6-S NR-0460-S-888-S 4D6F NR-460-S-117-S NR-0460-S-889-S 5FID NR-460-S-Il8-S COMBINED INTO 5FIE

~

~

NR-460-S-119-S 5FIF NR-460-S-120-S NR-0460-S-891-S 5 FIG NR-460-S-121-S NR-0460-S-892-S 3L2B NR-460-S-122-S NR-0460-S-893-S 3L2A NR-460-S-123-S NR-0460-S-894-S 3M1F NR-460-S-124-S NR-0460-S-895-S 3L2C

u l

ENCLOSURE 1 REGISTRATIONS TRANSFERRED TO INACTIVE STATUS 1

Old Certificate No.

New Certificate No.

Model Ntaber(s)

NR-460-S-125-S NR-0460-S-896-S lE2J NR-460-S-126-S NR-0460-S-897-S 3F1G l

NR-460-S-127-S NONE - NO INFORMATION 4FIE AVAILABLE NR-460-S-128-S NR-0460~S-899-S 5F1H NR-460-S-129-S NR-0460-S-900-S 3E40 NR-460-S-130-S COMBINED INTO 5 FIN NR-460-S-131-S NR-0460-S-901-S 5 FIN (MODIFIED)

NR-460-S-132-S NR-0460-S-902-S 7B8L l

NR-460-S-133-S COMBINED INTO 6H6A NR-460-S-134-S

~

~

6H6B NR-460-S-135-S NR-0460-S-904-S 4D6M NR-460-S-136-S NR-0460-S-905-S 3L2E NR-460-S-137-S NR-0460-S-906-S 6500, 6520 (FORM. 606C) i NR-460-S-138-S NR-0460-S-907-S 3L2D NR-460-S-139-S NR-0460-S-908-S 311D i

NR-460-S-140-S NR-0460-S-909-S 3E4L, 3E4S NR-460-S-141-S NR-0460-S-910-S 3 FIR NR-460-S-142-S NR-0460-S-911-S 902, 902F, 903 NR-460-S-143-S COMBINED WITH 4P6E NR-0460-S-871-S NR-460-S-144-S COMBINED WITH 4P6M NR-0460-S-872-S l

NR-460-S-145-S NR-0460-S-912-S 3Mll NR-460-S-146-S NR-0460-S-913-S 3G9A NR-460-S-147-S NR-0460-S-914-S 384G NR-460-S-148-S COMBINED WITH 4F3F NR-0460-S-871-S NR-460-S-149-S NR-0460-S-915-S 4F3G

.s ENCLOSURE 1 REGISTRATIONS TRANSFERRED TO INACTIVE STATUS Old Certificate No.

New Certificate No.

Model Number (s)

NR-460-S-150-S NR-0460-S-916-S 6DIA NR-460-S-151-S COMBINED WITH 6530, 6540 (FORM. 6B6G)

NR-0460-S-869-S NR-460-S-152-S NR-0460-S-917-S 6H6D NR-460-S-153-S NOT REQUIRED ALBUMIN MICR0 SPHERES NR-460-S-154-S NR-0460-S-919-S 6H6E, 8C9T j

NR-460-S-155-S COMBINED INTO 4D6L j

~

~

~

NR-460-S-156-S 406P NR-460-S-158-S NR-0460-S-921-S 3F11, 3F1J, 3FIL 4

NR-460-S-159-S NR-0460-S-922-S 3F1V NR-460-S-160-S COMBINED WITH 4P6T NR-0460-S-873-S NR-460-S-161-S COMBINED INTO 4F3D NR-0460-S-920-S l

NR-460-S-162-S NR-0460-S-923-S 4F3H NR-460-S-163-S COMBINED INTO 4F6S NR-0460-S-920-S NR-460-S-164-S COMBINED WITH 3E40 NR-0460-S-900-S NR-460-S-165-S NR-0460-S-924-S 6701 NR-460-S-166-S NR-0460-S-925-S 6702 NR-460-S-167-S NR-0460-S-926-S 6711 I

NR-460-S-168-G NR-0460-S-927-G 702, 703, 704 NR-460-S-169-S NR-0460-S-928-S 6510, 6550, 6570 (FORMERLY 6B6G)

NR-460-S-170-S NR-0460-S-929-S 4P6V 1

NR-460-S-171-S NR-0460-S-930-S 4F6ST i

j

Retrieved from "https://kanterella.com/w/index.php?title=ML20247Q957&oldid=3891613"