ML20140B296
| ML20140B296 | |
| Person / Time | |
|---|---|
| Issue date: | 06/20/1994 |
| From: | Doug Broaddus, Thomas Rich NRC |
| To: | |
| Shared Package | |
| ML20140B282 | List: |
| References | |
| SSD, NUDOCS 9706060132 | |
| Download: ML20140B296 (9) | |
Text
.. -...
.... -. _.. -. -. ~ _. _ _.. - -
. - -. -. - -.. -.. - ~....... -.. -.
-... _. ~ _. _..
4 4
l
{,
A i
l REGISTRY OF-RADIOACTIVE SEALED SOURCES AND DEVICES j
k SAFETY EVALUATION OF DEVICE l -
l -'
NO.:.NR-636-D-101-G DATE:
June 20, 1994 PAGE 1 OF 6
]
DEVICE TYPE:
Static charge Neutralizer I
1 liO_p_ELS:
3012, 3013, 3054, 3077, 3078 f.-
MANUFACTURER / DISTRIBUTOR:
TSI, Incorporated 500 Cardigan Road P.O.
Box 64394 St. Paul, MN 55164 1
'1 i
l SEALED SOURCE MODEL DESIGNATION:
DuPont Merck:
NER-8295, NER-8285, NER-8275; 3M Model 3B4G ISOTOPE:
MAXIMUM ACTIVITY:
Krypton-85 1 mci /37 MBq (Model 3013, 3078) 2 mci /74 MBq (Model 3012.,.3077) 10 mci /370 MBq (Model.3054) i LEAK TEST FREOUENCY:
Not required PRINCIPLE USE:
(O) Ion Generators, Static Eliminators l
l
<i I
L CUSTOM DEVICE:
YES X
NO ll i
s i'
(
i 9706060132 970529 PDR RC SSD PDR g
i i
t 1
l i
~
i,
l i
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE I
i t
1.
NO.:
NR-636-D-101-G DAT_E:
June 20, 1994 PLAGE 2 OF 6 t
l-DEVICE TYPE:
Static Charge Neutralizer l-L DESCRIPTION:
The TSI, Incorporated, Models 3012,.3013, 3054., 3077, 3078, are designed to neutralize electrostatic charges on airborne particles l
or to charge particles as they pass through the device.
These models are usually plumbed into an aerosol sampling system.
Models 3012, 3013, 3054, 3077, and 3078 are similar in design.
The 1
krypton gas is contained in a stainless steel tube.
This tube is
. inserted into source holders, one on each end, and expoxied in place.
Models 3054, 3012, and 3013 have additional set screws to hold the tube in place.
The source holders are bolted (Models 3012, 3013, 3077, 3078) or riveted (Model 3054) and expoxied to the inside of the outer cylindrical housing.
For Models 3012, and 3013, the outer housing is constructed of aluminum.
The outer housing is constructed of stainless steel for Models 3054, 3077,
]
and 3078.
The Model dimensions are given in Table I, below:
TABLE I.
Model Dimensions Model Lenath (in/cm)
Diameter (in/cm) 3012 17.8/45.2 3.0/7.6 3013 17.8/45.2 3.0/7.6 3054 20.0/50.8 3.6/9.1 3077 6.1/15.5 1.5/3.8 3078 6.1/15.5 1.5/3.8 Models 3013, and 3078 contain 1 millicurie of krypton-85.
Models 3012, and 3077 contain 2 millicuries of krypton-85.
Model 3054 contains 10 millicuries of krypton-85.
i l
LABELING:
l The devices are labeled in accordance with Section 20.203, 10 CFR i
Part 20 and the requirements of Section 32.51, 10 CFR Part 32.
a
4 i
)
1 l
REGISTRY OF' RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE i
l l
S I
i NO.:
NR-636-D-101-G DATE:
June 20, 1994 PAGE 3 OF 6 4
[
DEVICE TYPE:
Static Charge Neutralizer
~
DIAGRAM:
"E See attachments 1-3.
I a
CONDITIONS OF NORMAL USE:
~
The devices can be used up to a maximum temperature of 150*F (66*C) and are usually plumbed into an aerosol sampling system.
]
e PROTOTYPE TESTING:
Prototype testing for TSI, Incorporated Models 3012, 3054, 3077 electrostatic charge neutralizers were deemed acceptable by the i
NRC for licensing purposes on December 30, 1976.
1 The manufacturer submitted data to show that Models 3012, 3054, i
and 3077 have been used in the field since October 1, 1986, with i
no associated health and safety problems.
The sealed sources have achieved an ANSI N542 - 1977 classification of 77C32131.
i EXTERNAL RADIATION LEVELS:
l hodel 3012:
The manufacturer reports that measurements were made of'the radiation levels for Model 3012.
The measurements were made using Harshaw TLD-100, crystal dosimeters.
They were exposed for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with the following results:
2.3 mR/hr (23 pSv/hr) - surface of the outer aluminum tube
]
d 2.6 mR/hr (26 Sv/hr) - ond of the inlet and exit tubes Model 3054:
The manufacturer reports that radiation measurements were made of the Model 3054 aerosol neutralizer using TLD dosimeters where Harshaw TLD-100 crystals were used, and Model 2592 Nuclear Chicago Cutie-Pie.
Maximum radiation dose rates were.found on the surface of the device near the krypton source ~
l position and was found to be 13.1 mR/hr (131 pSv/hr).
j
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE l
NO.:
NR-636-D-101-G DATE:
June 20, 1994 PAGE 4 OF 6 DEVICE TYPE:
Static Charge Neutralizer EXTERNAL RADIATION LEVELS (continued):
Model 3077:
Surface measurements on the side closest to the source and at the midline of the source indicated 1.1 mR/hr (11 pSv/hr).
Measurement made six inches from the center of the source indicated 0.14 mR/hr (1.4 Sv/hr).
Models 3013, and 3078 would be expected to have lower external radiation levels-due to lower activities than Models 3012, and 3078,. respectfully.
OUALITY ASSURANCE AND CONTROL:
The QA program was deemed acceptable by the NRC for licensing purposes on December 30, 1976.
The manufacturing process for each model consists of fabricating or purchasing the component parts and sending these parts to the radioactive source manufacturer.
The source manufacturer i
fabricates the source and completes the assembly of the neutralizer.
The assembled product is then returned to TSI where a protective wrapper is applied, as well as, some additional labels.
Both source manufacturers 3M and DuPont-Merck have acceptable QA/QC programs.
LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:
The devices shall be distributed to persons that are i
l generally licensed by the NRC or an Agreement State.
The device shall be installed and initially tested for proper labeling, and external radiation levels and leak tested by persons specifically licensed by the NRC or an i
Agreement State.
Handling, storage, use, transfer, disposal:
To b'e done in accordance with 10 CFR 31.5 and Section 32.51.
l-L
- ~. -.. ~. - _ - _ _,
1 l
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.:
NR-636-D-101-G DATE:
June 20, 1994 EAGE 5 OF 6 DEVICE TYPE:
Static Charge Neutralizer LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE (Continued):
-]
This registration and the information contained within the references shall not be changed without the written consent of the NRC.
SAFETY ANALYSIS
SUMMARY
Based on our review of the information and test data cited below, we conclude that the TSI, Incorporated's Models 3012, 3013, 3054, 3077, and 30'i8 have sufficient information to provide reasonable
]
assurance that:
The device can'be safely operated by persons not having
]
training in radiological protection.
Under accident conditions (such as fire and explosion) associated with handling, storage and use of the device, it is unlikely that any persons would receive an external radiation dose or dose commitment in excess of the dose to the appropriate organ as specified below.
Part Of Body Rem (mSv)
Whole body; head and trunk active blood-forming organs; gonads; or lens of eye 15 (150)
Hands and forearms; feet and ankles; localized areas of skin averaged over areas no larger than 1 square centimeter 200 (2000)
.Other organs 50 (500)
)
-. ~.. -
-.. - - -... ~ -
i
-k l
l-1:
f REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE i
NO.:
NR-636-D-101-G DATE:
June 20, 1994.
PAGE 6 OF 6 1
[
DEVICE TYPE:
Static Charge Neutralizer SAFEPY ANALYSIS
SUMMARY
'(CONT.):
Under ordinary' conditions of handling, storage, and use of e
the device, the byproduct material contained in the device will not be released or inadvertently removed from the device, and-it is unlikely that any person will receive in i
any period of one calendar quarter a dose in excess of 10 percent of the limits specified in the table in Section 20.101(a), 10 CFR 20.
Furthermore, we conclude that these devices would be expected to maintain their containment integrity for normal conditions of use-i and accidental conditions which might occur during uses specified in this certificate.
l i
i
REFERENCES:
The following supporting documents for Models 3012, 3013, 3054, 3077, and 3078 are hereby incorporated by reference and are made a part of this registry document:
TSI's application dated August 5, 1991, letters dated l
November 22, 1991, October 25, 1991, and November 8,
- 1993, with enclosures thereto.
ISSUING AGENCY:
U.S.
Nuclear Regulatory Commission Date: June 20, 1994 Reviewer:
'"'M N
/U Thomas W.
Rich Date: June 20, 1994 Concurrence:
(v<
2, t%
DouVlas A.
Broaddus l
i e,
l l
1 l
l REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.:
NR-636-D-101-G DATE:
June 20, 1994 ATTACHMENT 1 l
j l
., -.y M I N M h.
~
'MI NbMRTIO4=O94 e
t
- \\,.
hus)
TUDE,CMTEst
- 90 6T3 ( 4..,o t>4 -
- .J.-
g (see)
- suru suoa-coma 7Lae C - TuttM4 4 (N)'
~j M
(.)~h_
g
.[
4 I
g e
1 s
K W
l ETi 1__
8 i ' '7 1%
J.
' 141 A.E i
- mECMed M-A
- x...,
TimC -TO4*ts ATS
+
% m geg, m,
"M W PLATY, sedO-tect a H eper wes -
s(Atto na.estsaae)sauetcAr euNO a+eo wor 64 ma o av o**cn i
t,o e011-1ruc s
. - E"!, $ g ' g **
j (wesTiTyre e etmasne) *
- e vTscuneo acru)-w4oa, 1
i Y;
9M Modet 3c7) 1 l
I l
l l
.~.
. _ ~.
1 REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE d
NO.:
NR-636-D-101-G DATE:
June 20, 1994 ATTACHMENT 2 4
a j
-4%4oet. axePtate(amoio acTNE) 4 Tusc.sa. OUTER Tuot h( sO O K 4WS' owash-abuaa,**uaa)
.tfW. %CT. enf AObC%4.%3Catf 48M4t SS WTYeb.4.- StuNC, s )ett.
SCEEbJ, PAN e40 oa-env-
~,bACE % LaCat Et O 4
i a
'04063
- CND e=u&TCh J
3eO72 NO WLATE (ALUMIN uM) 4Asseumvm
- A
(.
]
N
" A' d 860g*aZ4. ADAPTEEt,(Pi*ePT to W 33 TuSC'j TD b cua.PTER1utK.)
%M I
2
(%Tks**LC 4% ETEE A.)
/
- i mum we'es) -
/
y W
. A j_- g a%
+
.m, 33 I
l y
y 9
s.
r/
1 MW) /
]d LLA C
'F/(M Q(4' PnPt TwtC4&)
c,,, s wee s.o)$
Q l
l-
[
\\
d
.ts aCa f
a
_ n.s om 19*1040 - 4Ct f E N -
E 49t!.Dec
- SCGCCN (no sacg Sta.i+4sC%% %MCL)
(ghO esteH;$The=A5 91 STt ab) 3
- '80*"**2"
e IAAJ**tNOH l'C8L %TOCM) it o,c.ov.. ouece noss gy, a sy.ut wu M eaCm 'sTOCm) 8i,C#Cw. Ca. soCec tY 640
%To hgCgg gyggg 1
va-too c v uc.. z Ptact s 6.
I i
sue,vcoa o (s. m,.ou Ce sCmco..
.sT*u.co s< se cn.
eviv.Tv sCwcu. 2.o su.cua.C%
3 Ncdel L1 i
e*'
)
.o i
l l
l REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES l
SAFETY EVALUATION OF DEVICE NO.:
NR-636-D-101-G DATE:
June 20, 1994 ATTACHMENT 3
%b 1
s e
.e d
s u
h N
s l
1
\\
ivv i
N TN$!.
N iIl?%
,g
?
n;r, l
[55 I [g j
P
-t
- -.1J caunoes g
r o i
,p f,!
g
'r M
- " ~- t i
{;{;
N g ;
a y
==I i
e v- = ~ =
-a r
<t s
G-K,
-gg f!-O I)f g
A li.f
'I I
? ;
Id i
~
3 9
: :t.
e i !
J b
f su 1
g i
=
3 9 k l
hsoE M"N hh i
i t a i.
- n <
~
Q' "ssse gS I
ii l,
~