ML20214N595

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Responds to Questions Re Radiation Calibr of Area Radiation Monitor Raised in Insp Rept 50-294/86-01 on 860619-26.Ion Chamber Calibr Results Encl
ML20214N595
Person / Time
Site: 05000294
Issue date: 08/05/1986
From: Terry S
MICHIGAN STATE UNIV., EAST LANSING, MI
To: Shafer W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8612030686
Download: ML20214N595 (22)
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Text

_ _ - _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ - .

MICIIIG AN STATE UNIVERSITY COUJGE OF ENGINEERING FAST LAN%ING

  • 48824-12 %

DIYl510N Of ENGINURING RI5FARCH August 5, 1986 W.D. Shafer, Chief Emergency Preparedness & Radiological Protection Branch U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

MSU Triga Nuclear Reactor Docket No. 50-294, License R-114 Response to Inspection Report 86001(DRSS)

Dear Mr. Shafer:

This is in reference to the routine safety inspection conducted by Mr. R.A.

Paul of your office during June 19-26, 1986, of activities at the Michigan State University "TRIGA" Reactor authorized by NRC operating license No.

R-114 and to the discussion of findings with Dr. B.W. Wilkinson and others of the staff at the conclusion of the inspection.

With reference to questions raised about the radiation calibrations of the area radiation monitor (ARM) 1981 present and identified in Section 12 of your report, the following conclusions have been drawn:

1. Mr. Guy Thompson, a health physicist, has been advised that calibration records about which Mr. Paul expressed a concern are evidence that Mr. Thompson failed to assure that radiation monitor

.alibration records were maintained in a proper manner. Mr.

Thompson will received appropricte disciplinary action. In the meantime, actions have been taken to assure that proper records will be maintained in the future.

2. We are enclosing corrected calibration records for the ARM instru-ments covering the period 1981-date. These corrections were necessitated by discrepancies made in the original radiation calculations at the distances shown.
3. A 162 millicurie cesium-137, NBS traceable radiation survey instrument calibration source will be used for all area radiation survey meter calibrations. This source has been designed for calibration purposes and has built in calibrated attenuators to minimize source-detector distances necessary to achieve the desired ranges. This is an alternative to the use of several sources for various calibration ranges. ,

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I 8612030686 860805 4

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Page 2 August 5, 1986

4. Wo have improved our calibration forms to mcre fully document the calibration measuromonte. We have also recalibrated all'the portable radiation survey instruments used in the reactor and the area monitor.

If any additional information or material is needed, please advise.

S cerely, (3

\

,' M. j Stephen II. Terry, Assistant Vit President Treasurer for Finance and Oper' ions Enclosures BWW: jap c.c. W.ll. Malchman J. Cantion B.W. Wilkinson

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MICHIGAN STATE UNIVERSITY OltlCE OF RADIATION, CliEMICAL AND f,10 LOGICAL SAtETY LAST LANNING

  • MH llR.AN
  • 4MN26 leu 302 NORTil KEDZIE liALL TELEP'iONE (517) 355-0153 OR 353 6675 ION CIIAMilER CALIBRATION DATE CALIB. : 06/17/81 Corrected PROJ. LDR. : Dr. B Wilkinton DEPT.: Reactor BLDO.: Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Criticality Monitor MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALIBRATION SOURCE ISOTOPE : Co-60 SERIAL # R31430 AMOUNT 10 mci on 10/23/61 SOURCE STRENGTil CALIDRATED AT 13.0 MR/liR AT I METER ON 10/23/61 SOURCE STRENGTH CALIBRATED AT 0.99 MR/IIR AT I METER ON 06/17/81 RESULTS DISTANCE CAICULATED ALTUAL IN CM M R/11 R MRL((1(

l00 0 09 U.5 _ _

72 1.91  ?

45.4 4X 4 36.5 7.43 6 Calibrated by : 6<< #r!

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~dfm <

0

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, - - . ~ Al3Uis en Nfwmetwe Artwn/lyual Upportunity lestitesion

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MICillGAN STATE UNIVERSITY OtitLL 06 NADIA'llON. LiitMICAL Ahl) tilOLOblLAL ball lY l A%8 I Ansi,g.

  • MM.lil6 AN e ina24.lett 302 NORTH KLD/JL llALL TilfellONE ($17) )$$ 0155 OR 3554675 ION CilAMllElt CALillRATION DATE CALIB. : 06/17/81 Corrected PROL LDR.: Dr B. Wilkinson DEPT.: Reactor DLDO.: Engineering ROOM : 184 INSTRUMENT MAKE: Eberline Criticality Monitor MODEL # : RM-2 SERIAL # : 118 INV. # : FI'-175 i

CALillRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AA10UNT : 127 mci on 04/26/77 SOURCE STRENGTil CALIBRATED AT 165.1 MR/ilR AT I METER ON 04/26/77 SOURCE STRENGTil CALIBRATED AT 97.11 MR/ilR AT 1 METER ON 06/17/81 RESULTS DISTANCE CALCULATED ACTUAl, IN CM M R /II R M it / Il lt 314 9.H 5 H 285 11.96 to 255 14.93 12 226 19 14 Calibrated by : b <. 4/ m M e",

a '

u At3Uis an Nfsematisw Acskon/thed Opportunity lesenteswn n _ _ _ - - _ _ _ _ _ _ - _ ____ _ _

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MICHIGAN STATE UNIVERSITY OttK.E Of RADIATION. CllLMlCAL AND BIOLOGICAL SAILTY LAST LANSING

  • NKillGAN
  • 4mnJ4-tois 302 NORD1 KEDZ1E flALL TLitPilONE (517) 355-015) OR 353-M75 ION CIIAMBER CALillR A'*4 lON DATE CALIB. : 12/16/81 Corrected PROJ.LDR.: Dr. B. Wilkinson DEPT.: Reactor BLDG. : Engineering ROOM : 184 INSTRUMENT MAKE : Eberline criticality Mnniinr MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALillRATION SOURCE ISOTOPE : Co-60 SERIAL # R31-430 AMOUNT : 10 mci on 10/23/61 SOURCE STRENGTil CALIBRATED AT 13.0 MR/IIR AT I METER ON 10/23/61 SOURCE STRENGTil CALIBRATED AT 0.923 MR/IIR AT I METER ON 12/16/81 RESULTS DISTANCE CAlfULATED ACTUAL IN CM M R/II R M IL 98 0.96 0.5 69.5 1.01 1.5 44 4.76 4 _.

35.8 7.2 6 Calibrated by : It,'// odf m s O' '

V sisuis a= N/*r=*'ive As siu=/h==l Ortur*==ity !=>'**= tium 1 ..

MICHIGAN STATE UNIVERSITY OtilCE Ot NAD!ATION, CitLMICAL AND BIOLOGICAL SAILlY F A%T LANilNG

  • MH ilKiAN
  • 4mnJ6 lett 302 NORTil KED/.lE HALL TELEPilONE (187) 355 4853 OR 353 M75 ION CilAMBER CALIBRATION DATE CAllB. : 12/16/81 Corrected PROJ. LDR.: Dr. B. Wilkinton DEPT.: Reactor DLDG.: Engineering ROOM : 184 l INSTRUMENT MAKE : Eberline criticality Mnnienr MODEL # : RM 2 SERIAL # : 118 INV. # : FP-175 CALIllRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT : 127 mci on 10/23/61 SOURCE STRENGTil CALIBRATED AT 165.1 MR/IIR AT I METER ON 10/23/61 SOURCE STRENGTil CALIBRATED AT 90.74 MR/llR AT 1 METER ON 12/16/81 RESULTS DISTANCE CALCULATED A C f11A L IN CM MR/IIR M RlllR 302 9.95 7.s 276 11.91 11 247 14.87 13 219 18.92 Alarm trips at 18mR/hr Calibrated by : Ic e. '//

m.o r es,

/ Q bl5Uis an Njormaties Accian/tymal Opportunosy inssitutoun

MICHIGAN STATE UNIVERSITY OttiCE Of RADIA'alON. CliLMICAL AND BIOLOGICAL bAttTY F A%T LANhlNG

  • MH illGAN

TELEPilONE (187) 355 0153 OR 353-M75 ION CIIAMBER CALIBRATION DATE CALID. : 07/15/82 Corrected PROJ. LDR. : Dr B. Wilkinton DEPT.: Reactor BLDG. : Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Criticality Monitnr MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALillRATION SOURCE ISOTOPE : Co-60 SERIAL # R31-430 AMOUNT: 10 mci on 10/23!61 SOURCE STRENGTil CALIBRATED AT 13.0 MR/HR AT I METER ON 10/23/61 SOURCE STRENGTH CALIBRATED AT 0.845 MR/IIR AT I METER ON 07/15/82 RESULTS DISTANCE CALCULATED ACTUA[,

IN INCHES M R /II R M it / f lit 36.24 0.997 U.5_ _

25.5 2 01 1.5 16.1 5.05 4 12.1 8.95 6 11.5 99 7.5 l

l 9.4 14 82 11 8.4 18.56 13 8.2 19.47 Alarm trips at 18 mR/hr.

Calibrated by : [4* N LimJim

), o bl5U ss en Afprnensive Actionnqual Opportunity Instiestion 3 - _ - _ - - - - __-____ - ------ _____

MICHIGAN STATE UNIVERSITY OillCE Of MADIATION, LitLMICAL AND tilOLOblCAL $AILTY LAST LANstNG

  • MittlKiAN
  • 4nMJ4-10ll 302 NORTil KEDZlE flALL TELEPl!ONE ($17) 355-0153 OR 353-6675 ION CIIAMBER CALIBRATION DATE CALIB. : 03/30/83 Corrected PROL LDR. : Dr. B. Wilkinton DEPT.: Reactor BLDG.: Encincerino .. ROOM : 184 INSTRUMENT MAKE : Eberline Criticality Monirnr MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALillRATION SOURCE ISOTOPE : Cs-137 SERIAL # 197 AMOUNT: 100 mci on 12/69 SOURCE STRENGTH CALIBRATED AT 32.0 MR/IIR AT 1 METER ON 12/69 SOURCE STRENGTH CALIBRATED AT 23.68 MR/IIR AT 1 METER ON 03/30/83 RESULTS DISTANCE CALCULATED AClUAL IN CM M R /II R M it / f l it i12.5 18.71 14 125 15.16 _11 150 10.52 7.5 175 7.73 6 200 5.92 5 300 2.63 2 Calibrated by : t' c n e Jfe"

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MICHIGAN STATE UNIVERSITY OHICE Ot NADIATION, ClitMICAL AND BIOLOGICAL 5AltTY l A48 i AN%ING

  • Mit IIM.AN
  • 4NNJ61941 302 NORTil KED/JE HALL TEL1PilONE (587) 355-0153 OR 3534675 ION CilAMllER CALIBRATION DATE CALIB. : 05/18/84 Corrected PROJ. LDR. : Dr. B. Wilkinton DElrr. : Reactor BLDG. : Engineering ROOM : 184 INSTRUMENT MAKE : Ebertine Critientity Monirnr MODEL # : R M-2 SERIAL # : 118 INV. # : FP-175 CALillRATION SOURCE ISOTOPE : Cs-137 SERIAL # 197 AMOUNT .100 mci On 12/69 SOURCE STRENGTil CALIBRATED AT 32.0 MR/IIR AT I METER ON 12/69 SOURCE STRENGTil CALIBRATED AT 22.72 MR/IIR AT I METliR ON 05/18/84 RESULTS DISTANCE CALCULATED ACIUM, IN CM MR/flR M R /Ill{_

100 22.72 Alarm trips at 18 mlulu, 125 14.54 12 200 5.68 5 300 2M2 2 Calibrated by : M I w #fo~

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bl3Uis an Nfwmative Actiannqual Opportunity Insantusson

MICHIGAN STATE UNIVERSITY OtHCE Of MADIATION, Clif.MICAL AND BIOLOGICAL SAILTY LAST LANSING

  • MICilM;AN e ina44 80ta 302 NORTil KEDZ1E liALL TELLPilONE (117) 355-0153 OR 353-M75 ION CilAMilER CALIBRATION DATE CALIB. : O'l/26/85 PROJ. LDR. : Dr. B. Wilkinton DEPT.: Reactor BLDG.: Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Criticality Moni'or MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALIllRATION SOURCE ISOTOPE : Cs-137 SERIAL # S-481 AMOUNT : 161 mci on 5/7/84 SOURCE STRENGTil CALIBRATED AT 51.5 MR/IIR AT I METER ON 05/07/84 SOURCE STRENGTH CALIBRATED AT 50.5 MR/IIR AT I METER ON 03/26/85 RESULTS The gamma ray source (Tech / Ops) emmission has been established to have an accuracy of 3% (at 99% confidence) and traceable to Nils. All instruments measured with the detector axis of symmetry parallel with and perpindicular to the line joining source and detector.

DISTANCE CALCULATED ACTUAL.

IN CM M R/II R M R/Illt 150 22A4 Alarm trips at 18 inR/hr.

200 12.62 10 300 s.61 s Calibrated by : cc, ' *rn +m en

) V bl5Uis an Affirmaans Action /Qu.siOpportunity Instination

MICHIGAN STATE UNIVERSITY OillCE Of NADIATION. ClitMICAL AND BIOLOGICAL bAIETY LAST LAN%iMe

  • MH HN.AN
  • 4mnJ4.leH 302 NORTil KEDZIE IIALL TELEPilONE 1587) 355 0153 OR 3534675 ION CilAMBER CALIBRATION DATE CALIB. : 07/28/86 PROJ. LDR.: Dr. B. Wilkinson DEPT.: Reactor BLDO. : Enoincerine ROOM : 184 INSTRUMENT MAKE : Eberline criticality Monirnr MODEL # : RM-2 SERIAL # : 118 INV. # : FP-175 CALillRATION SOURCE ISOTOPE : Cs 137 SERIAL # S-481 AMOUNT : 161 mci on 5/7/84 SOURCE STRENGTH ON 05/07/84 : 51.5 MR/HR AT I METER SOURCE STRENGTH ON 07/28/86 : 48.08 MR/IIR AT I METER RESULTS The gamma ray source (Tech / Ops) emmission has been established to have an accuracy of 3% (at 99% confidence) and traceable to N BS. All instruments measured with the detector axis of symmetry parallel with and perpindicular to the line joining source and detector.
  • The dose readings for 25%, 2.5% and .25% of output at 100 cm. were obtained by using calibrated attenuators mounted on the source housing by Tech /Opx.

DISTANCE EAE CALCULATED ACTUAL IN CM OUTPUT MR/lf R hlRLl[j{,

100 100 48.98 Alarm trips at 15 mR/hr.

100

  • 25 12.24 13.0 100
  • 2.5 1.22 1.0 100
  • 0.25 0.12 0,1__

} Calibrated by : 't . Y 'r'X8/A

/ V blSUis an Nfirmatwo ActoonMqualOpportunityinstsaution

MICHIGAN STATE UNIVERSITY OttiCE OF RADIATION. CilEMICAL AND DIOLOGICAL bAHiTY IAbT LANblNG + MIC118GAN

  • 4NsJ4.lell 302 NORTH KEDUE IIALL TELEPHONE (187) 355 0155 OR 3534675 ION CilAMilER CALIllRATION DATE CALID. : 05/0&iR I corrected PROJ.LDR.: Dr. B Wilkinton DEPT.: Reactor BLDG. : Engineering ROOM: 184 INSTRUMENT MAKE : Eberline Aren Rntfintion Mnnifor MODEL # : R M R-2 SERIAL # : 460 INV. # : EK-lH32 CALIllRATION SOURCE ,

ISOTOPE : Co-60 SERIAL # R31430 AMOUNT : 10 mci On 10/23/61 SOURCE STRENGTH CALIBRATED AT 13.0 MR/IIR AT I ME'IT!R ON 10/23/61 SOURCE STRENGTH CALIBRATED AT Q.22. MR/ilR AT I MiiT!!R ON 05/06/H1 RESULTS DISTANCR CAlfULATED ACTUAL,

$ ,,Cfgi M it /li lt glig g, 100 0 90 i _

72 1.91 2 Calibrated by : -

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- t i' i , o s er g

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i h! Suis an Nfirmatin Action /Cqual Opportunity Institution 1 -

MICHIGAN STATE UNIVERSITY  ;

OtHCE Of RADIATION, CillMICAL AND BIOLOGICAL bAtkTY EA%T LANNIN(e

  • Ml( IIHi AN e innis f ull 302 NORTH KEDZIE Hall TELEPHONE (117) 3554853 OR 353475 ION CHAMBER CALIBRATION DATE CALIB. : 05/06/81 Corrected PROJ. LDR. : Dr. B. Wilkinson DEPT.: Reactor BLDG.: Engineerin? ROOM : 184 INSTRUMENT MAKE : Eberline Area Radiation Monitor MODEL # : RMS-2 SERIAL # : 469 INV. # : EK-1832 CALIBRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT : 127 mci on 04/26/77 SOURCE STRENGTH CALIBRATED AT 165.1 MR/HR AT I METER ON 04/26/77 SOURCE STRENGTH CALIBRATED AT 97.11 MR/hlR AT I METER ON 05/06/81 RESULTS DISTANCE CALCULATED ACLUAl, IN CM M R/II R M R / Ill{.

314 0 85 10 99 99.08 100 31.4 984 f , _ 1.000 22.2 1.970 2.000 15.7 3.940 5.500 11.I 7.882 10.000 4 Calibrated by : << 62 Y r~'tAfo-l~' 0 bl3Uis en A(firmative Action /EqualOpportunity Institution

MICHIGAN STATE UNIVERSITY OtilCE OF LADIATION. CalLMICAL AND DIOLOGICAL bAthTY LAST LANMNG e MH itM.AN

  • DaJe tull 302 NORTil KEDZIE HALL TELEPilONE (117) 355-0153 OM 3534675 ION CIIAMilER CALIllRATION DATE CALID. : 11/09/81 Corrected PROJ. LDR. : Dr. B. Wilkinson DEPT.: Reactor DLDO.: Engineering ROOM : 184 INSTRUMENT MAKE : Eber!ine Area Radiation Moriitor MODEL # : R MS-2 SERIAL # : 469 INV. # : EK-1832 CAL 1111(ATION SOURCE ISOTOPE : Co 60 SERIAL # R31430 AMOUNT: 10 mci On 10/23/61 SOURCE STRENGTli CALIBRATED AT 13.0 MR/IIR AT I METER ON 10/23/61 SOURCE STRENGTli CALIDRATED AT 0.223_ MlullR AT I MBTUR ON ll/0W81 ItESULTS DISTANCE cal _Ctll ATED ACT.U A],

IN CM M it / Il lt M R /11K.

I 98 0.96 69 1.04 2 31.1 0.54 leL__ .

Calibrated by :

[h, . ,

+~O / <~

htSUis en Nprmatin Action / Equi ofpersonity Inssitation I .

MICHIGAN STATE UNIVERSITY Ott!CE OF RADIATION CllLMICAL AND DIOLOGICAL SAILTY LAST LANhlNG e MK.lllGAN

  • 4xxJ1. lull 502 NORTil KLDZIE flALL TELEPilONE (117) 355 0153 OR 353-6675 ION CIIAMBER CALIBkATION DATE CALIB. : 11/09/81 Corrected PROJ. LDR. : Dr. B. Wilkinson DEPT.: Reactor BLDG. : Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Area Rndintinn Monirnr MODEL # : RMS-2 SERIAL # : 469 INV. # : EK-1832 CALIllRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT: 127 mci on 04/26/77 SOURCE STRENGTH CALIBR\TED AT 165.1 MR/HR AT 1 METER ON 04/26/77 SOURCE STRENGTH CALIBRATED AT 90.74 MR/HR AT I METER ON 11/09/81 RESULTS DISTANCE CAlfULATED ACTUAL IN CM M R /II R M R/II R 120 63.01 80__

38 628.39 1.000 26.8 1.263.4 2.000 _

19.0 2.s13.6 5.000 13.4 s.053.5 10.00h Calibrated by : /d et 'I/ ~

m. b -

l f v' l

MSUis an Affkrnutwe Action /EqualOpportunity lossitution

MICHIGAN STATE UNIVERSITY OttlCE Of itADIATION CHEMICAL AND blOLOGICAL bAtLTY EAST LANSIN(, o MitilH.AN e 44#44 lull 303 NORTH KEDZIE HALL TELEPHONE (117) 355 080) OR 3534675 ION CilAMilER CALIllRATION DATE CALIB : 07/15/R2 Corrected PROJ. LDR. : Dr B Wilkinton DEPT.: Reactor DLDG.: Engineering ROOM : 184 .

INSTRUMENT MAKE : Eberline Aren Rndintion Mnnitor MODEL # : R MS-2 SERIAL # : 469 INV. # : EK-1832 CALIllRATION SOURCE ISOTOPE : Co-60 SERIAL # R31430 AMOUNT : 10 mci on 10/23/61 SOURCE STRENGTil CALIDRATED AT 13.0 MlUllR AT I METult ON 10/23/61 SOURCE STRENGTH CALIBRATED AT 0.845 MR/IIR AT I METER ON 07/15/M2 RESULTS DISTANCR cal.CULATED ACT.U M ,

IN INCHES Mit/IIR M.j{/ [l K, 36.24 0.007 .I_

25.5 2.01 2.2 11.5 0.0 -

_ _l2._

-i Calibrated by : [t_.9!I p <V

0) *' .

e M3U k en N/sematin Action / Qual Upporte ni'y Institution

MICHIGAN STATE UNIVERSITY OtilCE Ot RADIATION. CitLMICAL AND BIOLOGICAL SAILTY LA%T LANSING

  • MlCallGAN
  • 4nJ4. lull 302 NORTil KEDZIE IIALL TELLPilONE (517) 355-0153 OR 3534675 ION CIIAMilER CALIBRATION DATE CALID. : 07/15/82 Corre< ted PROJ. LDR. : Dr. B. Wilkinson DEPT.: Reactor BLDO. : Fnginearing ROOM : 184 INSTRUMENT MAKE : Eberline Area Radiation Mt;nitor MODEL # : RMS-2 SERIAL # : 469 INV. # : EK-1832 CALIllRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT : 127 mci On 04/26/77 SOURCE STRENGTil CALIBRATED AT 165.1 MR/llR AT I METER ON 04/26/77 SOURCE STRENGTH CALIBRATED AT 82.94 MR/IIR AT 1 METER ON 07/I5/82 RESULTS DISTANCE CALCULATED ACTUAL IN INCHES M R /II R M it/Illt 44.3 65.51 80 14.1 646.8 1.(xx) 10 1.286 _ 2.0 w ___.

7 2.624 4.100 5 5.142 8.WD_

Calibrated by : I4h d Y nwO/c' -

l ' '

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M3Uis en N/ermesin Acsson/EquelOpportunsly instituseon

MICHIG AN STATE UNIVERSITY OtllCE Ot' RADIATION, CllEMICn!. AND BIOLOGICAL SAthlY LAST l.ANSING

  • MM.llH. AN
  • ONJt lu t e 302 NORTil KEDZIE IIALL TELEPHONE (547) 355-0153 OR 3534475 ION CIIAMUER CALIBRATION DATE CALIB. : 03/29/83 Corrected PROJ. LDR. : Dr B Wilkinson DEFT. : Reactor BLDG.: Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Area Radiation Monitor MODEL # : RMS-2 SERIAL # : 469 INV. # : EK-1832 CALillRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT: 127 mci on 04/26/77 SOURCE STRENGTH CALIBRATED AT 165.1 MR/HR AT I METER ON 04/26/77 SOURCE STRENGTH CALIBRATED AT 75.66 MR/HR AT I METER ON 03/29/83 RESULTS DISTANCE CALCULATED ACTUAL IN INCHES MR/HR M R/II R 7 1393 4.Q W _

14 598.3 1.100 44.3 59.76 60 129 7 05 6 Calibrated by : bet 7/ 7 04.t#T< ~

l/ '

V blSUisan A/firmative Action /EqualOpportunityInstitution

MICHIGAN STATE UNIVERSITY OtHCE OF RADIATION. CllEMICAL AND BIOLOGICAL SAtLTY EAST LANSIMi

  • M4(lilt,AN
  • 1mm24 telt 302 NORTil KEDZIE ilALL 1ELEPiloNE (517) 355-0153 OR 3534675 ION CilAMilER CALIBRATION DATE CALIB. : 05/18/84 corrected PROJ.LDR.: Dr. B. Wilkinson DEPT.: Reactor BLDG,: Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Area Radiation Monirnr MODEL # : R MS-2 SERIAL # : 469 INV. # : EK-1832 CALillRATION SOURCE ISOTOPE : Co-60 SERIAL # 1090 AMOUNT : 127 mci on 04/26/77 SOURCE STRENGTH CALIBRATED AT 165.1 MR/flR AT I METER ON 04/26/77 SOURCE STRENGTH CALIBRATED AT 65.13 MR/HR AT I METER ON 05/18/84 RESULTS DISTANCE CALCULATED ACTUAL, IN INCHES MR/HR M R/II R 10 1 000 1.000 COMMENTS On the report dated 5-18-84, the wrong distance was transcribed on the report due to a clerical error. The correct distance is noted on this corrected report.

Calibrated by : -

  • T -1 M > r '

ji '

' G' MSUis no Nprmative Acekon/IQualOpportmassy insentalben 1 -

MICHIGAN STATE UNIVERSITY OtHCE Of RADIATION. CHkt41 CAL AND DIOLOGICAL SAthTY LAST LANhlNG e MitillGAN

  • 4N#Ji lull 392 NORTH KEDZIE HALL TELEPHONE (117) 355 0153 OR 353 6675 ION CIIAMilER CALillRATION DATE CALID. : Os/18/84 Corrected PROJ LDR. : Dr B. Wilkinson DEPT.: neactor DLDG. : Engineering ROOM : 184 INSTRUMENT M AKE . Eberline Area Rndiation Monitor MODEL # : RMS-2 SERIAL # : 469 INV. # : EK-1832 CALillRATION SOURCE ISOTOPE : Cs-137 SERIAL # 197 AMOUNT: 100 mci On 12/69 SOURCE STRENGTH CALIDRATED AT 32.0 MR/1-IR AT I METER ON 12/69 SOURCE STRENGTH CALIDRATED AT 22.72 MR/IIR AT I MUTUR ON 05/IM/H4 HESULTS DISTANCE Calf Ul_ ATE D ACIljAl, IN CM M R /II R M R /II K.

25 163.s 31g__

50 00_88 90 100 22.72 20 200 s.68 5.0 Calibrated by : -

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- ) i o,5>

j oso~

btSUisen Afferneative Action /kualOpportunityinstituties 1

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  • MICHIGAN STATE UNIVERSITY OttlCE Of RADIATION, Clit.MICAL AND lilOLutelGAL bAtiliY LAbf LANblN(e
  • MittlH AN
  • innJ4 lett 302 NORTH KLDZIE !!ALL

{

Titanoss isi7) m oiss OR sssu7s l 1

ION CilAMUER CALIBRATION l DATE CALID. : 01/26/Rs PROJ. LDR. : Dr B. Wilkinsnn DElrr. : Reactor DLDO.: Fngineering ROOM : 184 INSTRUMENT MAKE : Eberline Area Rndintion Monitor MODEL # : R M R-2 SERIAL # : 469 INV. # : EK-1832 CALilll(ATION SOURCE ISOTOPE : Cs-137 SERIAL # S-481 AMOUNT : 161 mci on 5/7/84 SOURCE STRENGTil CALIDRATED AT 51.5 MR/IIR AT I MBTi1R ON 05/07/8l SOURCE STRENGTl! CALIBRATED AT 50.5 MR/IIR AT 1 METER ON 03/26/85 RESULTS The gamma ray source (Tech / Ops) cmmission has been established to have an accuracy of 3% (at 99% confidence) and tracc:;ble to NDS. All instruments measured with the detector axis of symmetry parallel with and perpindicular to the line joining source and detector.

DISTANCE CALCllLATED ACTtJAL IN CM M R/II R M R/Illt 25 808 300 _.

50 202 20(L 70 103 80 _

140 25 H 22 235 0 14 --

10 470 2 29 4 Calibrated by : - #!

/ W h-

) '

f MSUin an Nformasive Action /tymal Opportunity Insensosion i

1 I

MICHIGAN STATE UNIVERSITY ottlCE of MADIATION. CathMICAL AND DIOLOGICAL 6AtLTY LAYr IANMNb

  • MH lHGAN
  • DNN IHH 302 NORTil KEDZlE IIALL TELEPHONE t517) 355 015) oK 353475 ION CII AMilElt CALillit ATION DATE CALIB. : 07/2R/86 PROJ. LDR.: Dr B Wilkinton DEPT.: Reactor DLDG. : Engineering ROOM : 184 INSTRUMENT MAKE : Eberline Aren Rndintion Monitor MODEL # : RM S-2 SERIAL # : 469 INV. # : EK-1832 CALillitATION SOURCE ISOTOPE : Cs-137 SERIAL # S-481 AMOUNT : 161 mci on 5/7/84 SOURCE STRENGTH ON 05/07/84  : 51.5 MR/11R AT I METER SOURCE STRENGTH ON 07/28/86 : 48 98 MR/HR AT I METElt RESULTS The gamma ray source (Tech / Ops) cmmission has been established to have an accuracy of 3% (at 99% confidencc) and traccable to Nils. All instruments measured with the detector axis of symmetry parallel with and perpintliculai to the line joining source and detector.
  • The dose readings for 25%, 2.5% and .25% of output at 100 cm. were obtainetl by using calibrated attenuators mounted on the source housing by Tech /()ps.

DISTANCE  % OF CALCULATED ACI.UA l.

IN CM OUTPUT M R /11 R Mjt/ ll R.

i 18.75 100 1 393 21 1750 i

25 100 783.68 825 50 100 105.92 210 100 100 4898 52 100

  • 25 12 24 12 5 100
  • 2.5 1 22 15 100
  • 0.25 0.12 0.27 Calibrated by : _. 'l + n c --

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&nC is an N)nrmatin ActionKqual Opportensty inscotutoon M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _

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