ML20148H025

Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Device for Model 5245-XX. Certificate:NR-375-D-102-2

ML20148H025
Person / Time
Issue date:	08/03/1992
From:	NRC
To:
Shared Package
ML20148G975	List: ML20148G974 ML20148G979 ML20148G994 ML20148H025 ML20148H043 ML20148H208
References
SSD, NUDOCS 9706090084
Download: ML20148H025 (10)

Text

[j 14:23 06/14/95 FROf1 Isotope ficasuring Systems TO 13014155369 P.02 REGISTRY. OF RADICACTIVE SEALED satTRCES AND DEVICES SATETY EVALUATION OF DEVICE ML.1 NR-375-D-lC2-5 Q&IE1 August 3, 1992 Pact i or a DEVICE TYPEr Profile Thickness Gauge MQQEld. 5245=aot series (see description for approved nodai numbers) erstarnaTom: Isotope Measuring Systaas, Inc.

los Slus Ridge Driva i Mars, PA 14044 I

i

MANUFACTURER: Isotopen Masesystema GmbH (IMS)

! Diassistrasse 55 l i

Fostfach 10 03 52 '

j 5428 Heilgenhaus l l West Germany i

I s nt.rS gomter MobtL DESTSM1?TcN! Amersham Corporation j -

Modai CDC.PE4 i

4 s

Is0TCPIt MAEIMUM ACTIVITY I Cesium-137 l- f 75 Jt0 curies SKsources,55Cieach) l I

3 i

{ LEAX TEST FREQUENCYI 6 Months

)

!i

PRIMCIPAL UAE1 (D) Gamma Gauge l

l 1

CUSTOM DEVICEr YES -- X NO I i

a i .

i I

4 i

i i . !

a 9706090084 970605

• *gg-

)uii3 4)1 % yfd E 3 M l1*I'. 25-30-90

, PDR RC j SSD , .PDR

14:23 06/14/95 FR0t1 Isotope ficasuring Systems -TO 13014155369 P.03

RESISTRY. OF RADICACTIVE SEALED SOURCES AND DEV1CES I SAFETY EVALUATIow 0F DEVICE l i

I i l

. Eb.i NR-375-D-102-8 QMIL August 3, 1992 PAGE 2 OF R DEVTcI TYPE Profile Thickness Gauge

y , ik DESCRIPTIONt f- A?YY

,4ggf gg '{

W An Isotope Measuring systems' Model 5245 series profile thickness gauge consists of the following:

• Metal M Structure Individual source Housings 1

! . Ionisation Chamber Detectors Electronic and Microcomputer system Air Blower Purge Systaa

. Remote Mounted operator Panal i

, . source shutter open/ closed Indicator Light sexes  !

The device has the sealed eeurces mounted in seurse housings in the upper arm of the . The source housings are made with Heavy Metal (Tungsten e, specific gravity =18.9, salting point =3380'C) cylindrical shutters with fan type collimators. l The shutters are mounted with axial springs which close the shutter if there is a power or air fallure. The housings are mounted some distance apart along the upper arm of the frame and are tilted so that the cross-sectional area of each radiation l been will covar all the detectors which are mounted along the 4 bottom arm of the (-fram)

The M'is constructed from 3/8" thick steel box section and )

2 ridae ws v. arse rails set into the floor of the famility. The 1 frame is mIsited by an electric motor on the rails between a storaga and a asasuring position. The microccaputer systaa ensures that the shutters on the devi be openes or

, reasin in an open position unless the - is in the measuring 0-7 position.

The M is equipped with a cool g system which will ensure the temperature :.n the area of the -fr will not exceed 70*C.

Temperatures above 70*C will cause system to give faulty readings. The device itself will maintain its radiological integrity at temperatures up to 315'C.

73d l, Eld Mili 41R 3H A033 XY 114: ?64040

R

! REGISTRY OF RADIOACTIVE SEALED sCURCE8 AND DEVICES

~

SAFETY EVALUATICN CF DEVICE

HQ._1. NR=375-D-102-8 EAIFJ, August 3, 1992 Dun 4 of a i

i l DEVICE TYPE: Profile Thickness Gauge

, DIAG 2AMi j

i 3 Attachments 1-3 show the profile thickness gauge Model 5245-01, i the source housing, and the radiation dose rate conteur.

f tAttLIMs The device is labeled in accordance with Section 20 203, 10 CFR l Part 20. TF.e labels contain the radiation symbol, isotope,

activity, model number, corial number, name of the distributor, 1 the words NCatJTION-RADICACTIVE MATERIAL", and full details of l contact names and telephona numbers, i

C The labels are made of aluminum, 46d rec,h l"*C in i tangular shape and are l permanently attached by screws to the device.

l CONDITIONS OF NQRMAL USE: I

} The device is' intended for use in industrial gauging i applications. The device is typically used to measure thickness i g; profiles of h plate / sheet ranging in thickness from i 0.0004" to 10a. The device is designed for the following i environmentst ,

l Temperature ..................... Up to 158'F (70'C)

(operating)

Devloe will maintain its i integrity in temperatures j up to 600*F (315'C) i Pressure ........................ Atmospherio Vibration........................ Ranges from sero to sild i Corrosion ....................... Ranges from sere to Highly i corroeive vapors

! Fire ........................... 1473*F (s00*C), 30. minutes PROTOTYPE TESTING 1 Both the profile thickness gauge and the source housing used within the gauge have been tested in accordance with the procedures specified in the NSS Randbook 129, American National Standard NS38. The source housing received a classification of ANSI 32=S88-454-R3. The profile thickness gauge received a alassification of ANSI 32-sss-sss-R3.

I 1

20! LEld n: 13 ;)iUA 31.4 M0gd Ny 1141 U-90-30

-1

_ - ~ - . - . . - , _ . . ~ . . . ~ . ~ . ~ . _ - - - . - . - - . - . - - - - . - . . ~ . . - - . - . . . - -

14:26 06/14/95 FROM Isotope Measuring Systems TO 13014155369 P.66 f

REGISTRY. OF PADICACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE l h NR-375-D 102-5 E1211 August 3, 1992 PAGE S OF S DEVIgE_TYPEt Profile Thickness Gauge

-I 4

1 PROTOTYPE TESTINS (contid)i The stray radiation measurements for both the source housing and

' the profile thickness gaugss, shutter in the open position, are the same because they wars measuesd directly in the useful beam.

The radiation reasurements are 1936.0, 167.2, and 17.4 R/h at 4*,

30, and 100 cr. respectively.

• 4 cm $s the smallest distance from the source housing due to the geometry of the measuring devios.

c .

j In addition, the shutter aschanism was subjected to cycle testing. Shutter open/close operation was performed every 40 j

seconds for over 1300 cycles in temperatures ranging from Car

(-17'C) to 14 0*F (40 *C) .

]

Prototype sources of the ones used in the device have achieved  !

ANSI N542 classificatione of 77E63535. l rwwwwar, manitTTow r.rtertar l i i

2 Teodoes curves showing a 0.75 BR/hr contour around the Model 8245-o1 C-frame are shown in attachment 3. The solid line shows '

i the 0.75 mR/hr area with the shutter in the open position. The 2  ;

mR/hr contour can be defined by simply reducing the distance from i the C-frame by a factor of 1.43. .

l W4m  !

j ./

i } f *hetC-frame during normal operation is in front of the MM =1y place wherei i opening. This aran will have a lead / steel wall constructed to  :

! confine the radiation dose rate to 0.25 mR/hr. '

! Radiation does ratas at 4, 30, and 100 cm from the source housing i 4

and the device are shown in the table belows i

Distance from Max. Radiation Max. Radiation Max. Radiation

} Sourse Housing Does, shutter Dose, shutter Dose, shutter

{ or C-Frama closed. Closed. open.

Scurse Mousiner C-Praan in traaful team )

6 ca 50.40 mR/hr 0.5 mR/hr 1936.0 R/hr j 30 ca 4.00 mR/hr Background 167.2 R/hr j 100 ca 0.36 mR/hr Background 17.6 R/hr i

I I

i i l 1

l  !.0i 31; :111; una we nu w :t it ? c.o n.'a n i

-~~ .

es & ,93

___ ~ ~ ~ ~ -

j g s_otop* fieasurin9 Systems 79 3 . ,

.S.-..

p,ep

~ ~

J D SOURCES Amu w .

i REGISTRY OF RADICAcTIvs sfALF.$AFETY DAfff 14(USI$, N HQ4 NR-375-D-101-5 f

' nrvicE TYPEt Profils Thickness Gauge 1

4 OUntTTY inatmwa"E AND coNTROLt i IM5 has submitted quality assursace and control procedures that for l l the manufacture of the 5245 series profile thicknese gauge In l 1

have been deemed acceptable for licensing pu poses by NRC.i i,

units which are received at customer facilities in t ,

!i A copy of both sets of procedures are on file with the Source l j Containment and Devices tranch of NRC.

1 j LTwfTATIONs AND/oR OTMrR c0METDMt1 Trots GF UAXr j

The device shall be distributed to' persons specifically licensed by NRC er an Agretaant State.

To be a Mandling, storage, use, transfer, and disposal:In view that the Il j

determined by the licensing authority.

sources used in the device exhibit high dose rates, th i i' using adequate remote handlang equipment and procedures.

jq

. These exceeddevices 4 monthsshall usingbetechniques leak tested at intervals capable not to0.005 of detecting ll microcurie of removabis contamination.

lq

• RrVTEWER NOTE: A) The 44Vice must have all (sf the follOWing safecy features checked for proper function at the time of installation and at intervals not to exceed 4 months f# spring mechanism which will close the shutter if thare l is a power failure,

'3 air /alectric supply failure detection system.

q

. proximity switches which will ensure shutter closure if the device is not in the measuring position.

a

• . detection system which will ensure shutter closure if no material is in the measuring gap.

dj,

- shutter indicator light boxes. .

on: N IIIIE IIIIM 1Xil WOX4 'gy (('2l ;j.Ql).ql)

_ . _ . . . _ _ _ _ _ - . . . . _ _ . - _ . . _ _ . _ _ _ . . _ _ _ _ _ _ . . . . ~ . _ _ _ _ _ . _ . . _ . _ . _ _ _

14:32 06/14/95 FROM Isotope Measurin3 Systems TO 13014155369 P.02 d i

j REGISTRY.OF RADICAcTIVE staled soVRcas AND DEVICs3 1

SAFETY EVALUATICN OF DEVICE i i

QAT11 August 3, 1992 Past 7 0F s l gh,1,NR-375-D-102-8 '

4 l Dxvict TYPtt Profile Thickness Gaugs l 1

r.TwrTaTrova urn /en oTura cowarnenierows er use teent'dtt

! . nrvirven X Tit 3) Thb evi aust ins glied w c 1 ad/s el v 1o a ed fro of tha 'c' i f j

1. th de . e 1 _ co ine adiaNion d ay _

to .35 /hr o low .fthedeV t be installed with 4 storage ana measurs.ng nousings or enolosures to ensure that no indiyidual will be exposed to a radiation dose rata i

i greater than 0.25 mR/hr. The area above the devios, such as

]

catwaiXs, must be unaccessible during operation due to the I high radiation dose rates in the area above the c-frame.

i j - If Isotope Measuring systems wishes to add any new devices to this registry shest as members of the 5245 series, they must submit design details for the gauge to NRC.

! - This registration sheet and the information contained within I

the references shall not be changed without the written ,

! consent of the NRC.  ;

l altrPY ANALYSIS st3Af11Y1 4'

j Based on review of Isotope Measuring 6ystems' profile thickness i l

! gauge, Model 5245 serias, and the information and test data cited l

below, we conclude that this device is asseptable for specific j licensing purposes.

}

Furthermore, we conclude that this device would be expected to asintain its containannt integrity for normal conditions of use l

i and nooidental conditions which might occur during uses specified i

i in this sostificate. I j The fe11 swing supporting documents for the Model 5245 series l profile thickness gau e are hereby incorporated by referettce and l are made a part of th s registry document.

l j

- Lorens & Engelhardt's application for AEG dated June B,

1990, and subsequent letters dated July 17, 1990, July 31, l 1990, October it, 1990, November 24, 1990, and January 17, l 1991, with encloeures thazato.

i 4

i Wd  !,!!! W11 niu m Aou Ry 1141 M-90-30

14:33 06/14/95 FR0t1 Isotope T1easuring Systems TO 13014155369 P.03 j REGISTRY OF RADICACTIVE SEALtD SOURCES AFD DEVICES SAFETY EVALUATION OF DEVIG I '

4 l 30.1, NK-375-D-102-8 ,agggA Aug. 3, 1993 pacit a or a l

orvict TYPE 1 Profile Thickness Gauge i

l REFEREntcts (cont'd) f Engelhardt & Arsociates' letter for Isotopes Measuring  !

i systems dated July 2s,1993, with anolosures thereto. *

!

• Isotope Measuring Systems' letters dated July 31, 1992, with e.exe. e. th. rete i  ;

j InsufMG AstitcY.i t!.s. Nuclear Regulatory commission i

j f [,j^ '

\

I Date: Aun. s. ine2 Reviewer s ///K/ '

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14:34 OG/24/95 FROM Isotopa Mecsvring Eystems TO 13014155369 P.04 M ' L1tt

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