ML20211Q914

Ack Receipt of on Photon Gauge Distributed by Bsi Instruments

ML20211Q914
Person / Time
Issue date:	10/16/1997
From:	Lohaus P NRC OFFICE OF STATE PROGRAMS (OSP)
To:	Flater D IOWA, STATE OF
References
NUDOCS 9710230059
Download: ML20211Q914 (3)

Text

ve835h h Mr . n!M A F! ate. Chief OCT 161997

- si Rude're al Health

., >3epubmd d Pub e Health g,j  ; ,.cn G;Me Ori,e Building Du Mone ;vwa 50319-0075

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O. .. Av. t later:

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, This is to ackt.0wledge receipt of your letter dated September 23,1907 on the " Photon Gauge"

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distributed by BSI ;struments.

s We have referred your lette. to Mr. Steven Baggett of our Sealed Source Safety Section for review and response. You can expect to hear from him by November 10,1997.

We appreciate your bringing this matter to our attention.

Sincerely, Original Signed by Cardelic Mau h Paul H. Lohaus, eputy bin Director

) Office of State Programs n, , n . ,

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Distr.ibution:

DIR RF (7S253) DCD (SP07)

SDroggitis PDR (YES./, NO_)

g,,,,,N,IH, SBaggett .

Iowa File _2-DOCUMENT NAME: G:\ LAB \BSI. LAB *See previous concurrence.

ta r.e.w. . eor ce ini. nocum.nt, in+ent. in in. bo.: c . cony witw .ttuhment..w.m. r . con , .itn .etunm.ne.e.,. v . we cony OFFICE OSP OSP:DD OSP:D NAME LBolling:nb PHLohaus RLBangt,rt DATE 10/15/97* 10/15/97* 10/16/97*

9710230059 971016 OSP FILE CODE: SP-AG 9 PDR STPRQ ESGIA PDR

Mr. Don:Id A. Flat:r, Chtf

~

Bureau of R:diological Health

Department of Public Health Lucas State Office Building Des Moines, Iowa 50319-0075

Dear Mr. Flater:

This is to acknowledge receipt of your letter dated September 23, 97 on the " Photon Gauge" distributed by BSI, instruments.

We have referred your letter to Mr. Steven Baggett of our Seale Source Safety Section .or

review and response. You can expect to hear from him by No mber 10,1997.

4 We appreciate your bringing this matter to our attention.

Sincer y, 4

/

/

j Pau'l H. Lohaus Deputy Director Office of State Programs r

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/

/

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/

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Distribution: ,

/

DIR RF (7S253) j/ DCD (SP03)

SDroggitis PDR (YES_/, NO_)

SBaggett >

lowa File DOCUMENT NAME: G:\ LAB \BEil. LAB TS receive a top ' ed this document. Ind6cate in the bou: "C" a Copy wthout attachmenvenc60 iure *E's Corvr wth attachtnent/ enclosure v e No copy 4 OFFICE OMWL o MMP WI 31XAFtpH I NAME LBolling:htij ? F PHLhi)M f WI RLBaj W DATE 10/ D97 ' 10/D/97 10/ fG/97

/ OSP FILE CODE: SP-AG 9

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

p seteuq p k UNITE] STATES a

NUCLEAR RESULATCRY CSMMISSIEN WASHINGTON, D.C. 30eeM001

'*9 , , , , , October 16, 1997 Mr. Donald A. Flater, Chief Bureau of Radiological Health Department of Public Health Lucas State Office Building Des Moines, Iowa 50319-0075 Dear Mr. Flater; This is to acknowledge receipt of your letter dated September 23,1997 on the " Photon Gauge" distributed by BSI Instruments.

We have referred your letter to Mr. Steven Baggett of our Sealed Source Safety Section for review and response. You can expect to hear from him by November 10,1997.

We appreciate your bringing this matter to our attention.

Sincerely, Office of State Programs

-.n., , - ,- -- , , . . . ,

. g STATE OF

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TERRY E. DRANST AD, GOVERNOR DCPARTMENT OF PUBLIC HEALTH CHRISTOPHER G ATCHISON Dmt.cton September 23,1997 Richard L Dangart, Director u Office of State Programs (03D23) S US Nuclear Regulatory Commission. y ~o Washington,DC 20555 g

Dear Mr. Bangart:

5 In the mail on September 18,1997, I received the attached information regarding a company who has developed a Thoton Gauge" for material density and level l

' determinations. Their intent is to market the device without radioactive sources.

Exempt sources would be purchased by the gauge buyer and these soutres would be installed by that buyer to put the gauge into service.

You will note on Pages 1 and 2 of the package that references are made to the US Nuclear Regulatory Conunission (NRC), if any of the references are true,I have serious concerns about our previous decision to relinquiah our authority to review and evaluate l

scaled sources and devices which use radicactive material in the operation process. !

have contacted the radiation safety office (RS0) of the gauge manufacturer and she indicated that they have no written corresponde 6 or: the photon gauge from the NRC.

The only thing they do have are results of meetys/ telephone conversations with NRC staff. No staff of NRC were named during my telephone conversation with the RSO.

Ilowever,it is noted that Mr. Daggett was scheduled to receive a copy of the attached transmittal memo.

Because we relinquished our authority to NRC for scaled source and device (SSD) review / evaluation, this letter is our formal request for an SSD review / evaluation, by your agency, of the devices listed in the attached literature. The decision has been made to not allow the distribution of the Thoton Gause" in Iowa until NRC has perfonned the SSD review. Our decision is based on public health and safety concerns, in reviewing the company's data,it is noted that a gauge owner could, in the current gauges, purchase up to 3010pCi "EXTAilT" Cs 137 sources for loading into the gauges.

This would mean that the gauge was loada with 300 pCi of Cs 137. The 300pci produce an unshielded exposure rate of approximately 1 Rem at Icm and 1.1mR/hr at 30 cm. With no other information, we must also consider the skin dose from the 351 kev p emitted in the Cs-Bam decay. I, therefore, have genuine concerns about the dose to owner personnel loading the "EXfailT* sources into the " Photon Gauge." I don't know whether or not anyone has done a health physics evahtation to justify the.

company's claim that the housings are capable of limiting the exposure after loading to 0.5 mRFAi or less. I also wonder what the mRFAi referenced in the manufacturer's literature means without a time factor indicated.

i LUCAS STATE OFFICE BUILDING / DES MOINES, IOWA 503190075 / 515 2815787 FAX # (515) 2814958 / TOD-DEAF SERVICES #(515) 242 6156 WWZCb?7 /yA2

t i o. * .

Page 2 Bangart, Richard L .

US Nuclear Regulatory Commission September 23,1997 l

l Aside from the issues outlined above, we are starting to consider questions regarding how many, what isotope, what exposure rate, etc. or combination thereof are allowed for exempt sourre(s) to no longer be exet*1pt. We believe that this could truly be a '

public health issue. In fact, we air seriously considering a rule change to exclude from

, exemption devices containing more than the exempt sources. This would involve l

changing towa's counter part to 10 CTR 30.15(a) (9). That regulation is now designated comptibility Category B. Any changes would remove Iowa's " essential sameness".

Mingled with our concerns, I have raised some issues which I am formalizing as requests from NRC:

• We are requesting a safety evaluation of the subject device.

We are arquesting copies of the NRC documentation "apptuving" the distribution procedurrs cutlined by the company, e We are arquesting a legal interpretation of the intent of 10 CFR 30.15(a) (9).

We await your response to our request. If you have questions, please contact me.

Sincerely, 4h-Donald A. Plater, Chief Bureau of Radiologicalllealth 515-281-3478 - Office 515-242 6284 - FAX dflater@idph. state.ia.us.

DAT/Ir ec: Steve Collins (IL)

J. Lynch (NRC)

Charles liardin,(CRCPD)

Enclosure:

BSIinstruments package (WngartAT i-

. . ;* 7, " * '. ~ '

HCDewell Business Pcrk M_.  ; 2,,

I O DO O Di f i~'

, INSTRUMENTS f Phone .:12 373.);CO tnUb hb.: . Fox: Jl 2 37 8102o

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- RECElVED l I

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LBUAEAU of RADroloG: CAL sk4tyg To: Vaticus Radiation Control Program Directors cc: Charles Hardin, CRCPD, Frankfort, KY Steve Baggett, NRC headquarters

Subject:

THE PHOTON GAUGE Earlier this month, the Conference of Radiation Control Program Directors (CRCPD) issued via E mail a summary description of our Photon Gauge program. In sum-mary, BSI Instrumer:ts has developed a line of density and level gauges using

" exempt" Cs 137 sources. Our purpose is to. provide industrial process customers with gauges utilizing non invasive gamma sources exempt from regulatory ilcens-ing, wipe or shutter tests, or disposal concerns.

For your added information, we are malling to you a printed copy of that E mail, as well as descriptive brochures, if and as you need additionalinformation, please contact me at 412 378 1900 or via E mail at http://www.bsi 1.com.

Sincerely yours, h& i. -

Mary Dedola Radiation Safety Officer Attachments:

Summary Description Brochure: Phe, ton Density Gauge Photon Continuous Level Gauge Photon Point Level Gauge

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,, Eni!w ZC p' "'lN*

p Ho wdl Busmss Park c-- ,7- - 10 Corporation Dnvo INSTAUMENTs gg , Allouioco, PA 15001

.fm . Phone: 412 378q900 g jp,; ,, Fox: 412 378 1o26 m WI;7' - _

ntic://www.osi.l com September 3,1997 Summary Description for Radiation Control Program Directors:

The Photon Gauge Backaround: BSIinstruments has developed a line of density and level gauges using " exempt" Cs 137 sources. In doing so, their stated purpose is to provide in-dus r!.,1 process customers with gauges utilizing non invasive gamma sources ex-empt from regulatory licensing, wipe or shutter tests, or disposal concerns. Long-term, their goalis to greatly reduce (or eliminate) customer demand for generally licensed devices. The company calls their gauge its " Photon" gauge, and identifies spplicable 10 microcurie Cs 137 exempt sources as " photon" sources.

BSI Instruments is the name given to Berthold Systems, Inc. and its affiliated Apgee Corooration and Sweetwater Technologies, Inc. Since 1984, the company has been NRC registering, licensed and distributing the German "Berthold" line of nuclear gauges since 1984, importing the German "Berthold" line of nuclear devices. BSI Instruments continues to distribute Berthold devices in addition to its own line of devises and gauges.

The Photon Housina: BSI Instruments has designed two photon housings, one housing photon sources for density gauging and another for level gauging. The density holder resembles a lead " donut". The level holder censists of a lead lined coated steel channel. Both' holders house batween ten to 30 photon sources.

Minimum Reaulatory Recuirement: The Nuclear Regulatory Commission has con-firmed to BSI Instruments that its Photon gauge follows 10CFR 30.18 and 32.19, and may pursue its program free of NRC registration or NRC/ Agreement state licensing so long as BSI (1) niarkets only the photon housing and not the sources, (2) advises customers to obtain sources separately from a licensed distributor, and (3) provides customers with instructions in the safe handling and use of sources.

Additionalinformation is available by contacting NRC headquarters.

Additional Measures Taken: BSI Instruments has added several features to its Photon gauge program,in the interest of maximizing safety and source control:

1. BSI Instruments manufactures its photon housings to assure installed surfaca radiation levels of 0.5 mrem or less,

2. Each photon housing is serialized, and stickered with instructions to return to housing to BSIInstruments for disposal.

3. photon housings are so constructed that assembled photon sources cannot be readily removed.

4. On site assembly of photon sources in their housing is performed by a BSI engineer or contractor, or by a customer employee given specific instruction.

BSI Instruments plans to forward additionalinformation to each state radiation-control program director, During September. Alternatively, you may contact BSI's radiation safety officer Mary Dedola at 412 3781900 or via E mail at http://www.bsi 1.com.

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--(Oporbiting Prin~cipig es ;t passes througn tne process meterial. With the mecsvring Calibration The NW2100 Pheten censity cistence netd constcnt, the CotCrction is ccmpietea on line

• ~cuge coerotes us:ng tre mec. Ottenuction of energy fie:c is with compcretve somc!ss icken s5 ting orine:ple of sc!nidiction preportonal to the encnge in ' rom the process. The sersci,!e tecnnology. The system consists cens4 software progrcm c! lows for c of a source noleer en a smcil Quick precise ccitrcten end enoton source, a sc.nti!ction A precise and efficient scintdlotion stcrt-vo of the system. Only one cetector, mounting ncrcwcre, detectot Acorporoting a solid calibrotion point is neeced fer ono m!ctcprocessor unit. stcte scintmaten crysict measures stcrt up, but severci cctnts con the energy field onc supplies a cr6ft free signal to the micro- be cdded for c mere crecise

- The energy field emitfeo by a mecsurement, smais pnoten source ;s onenuatea processor unit.

N'#21001 Density cotionoQ. and FM, CSA & UL C: css i civ. t M -

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'nto one ccmpact unit wnicn is two isolatec enctog 4 20mA c!rmoec c;rectly ento the existing outcuts. and two RS 232/RS --

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" recommended. With this powered by 120/240 VAC 50/60 orrangement the NW2001 scintilto- Hz supply. Temperature compen-tien cetector is mounted on the sotion input circuitry, and outputs t process, and the NW2100 2 consisting of: 5 digit alsoloy, two containing the microprocessor solated onolog 4 20mA outputs.

e unit is mounted remotely up to o g moximum of 5.000 feet away. and two RS 232/RS 422 senal outputs are inctuced.

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Retrofits The X\V2100 demitr gauge can utill:e and utend the productive life of nuclear sources that are t urrently in placefor density mensarements.

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Density Gauge l a Density ronge of process

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Operating temperature range.

Tdchnical' Data NW2100 Collbration software: Count Rote Range: Inputs:

- Variable calibration 0 - 99999 cps - Two (2) analog 0/4-20mA mathematics Temperature Range: - Temperature

- Adjustable time constant -20*C to +50*C compensation with

- Temperature Auxillay Power: 100 or cunent signal compensation circuitry AC: 60v AC to 240v AC, NW1100 Hand Held Unit:

50/60 Hz - 4 ' ne, 20 character LCD Dig tal 4.5 digits back lit display DC: 18v DC to 36v DC Data Storage: Power Consumption: - Membrane keyboard EE-Prom 15vA to 20vA data entry D:: cay Compensation: Outputs:

Auto control via quartz Analog: Two (2) isolated clock analog outputs (0/4-20mA)

Serial: RS-232 / RS-422 l

For more information, contact "7$c*$$n"o7v'e instauwenis ipco, PA 15001 12 38 19

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< operating Principid NW3100-1 Continuous Level le"e*ou'gO 'JJ 7"! "$ Gauge with Integral Electronics the measuring principle of scintillation technology. The The NW31001 level gouge hos The unit is powered by 120/240 VAC system consistsof a source the scintillation detector and a 50/60 Hz supply Outputs consisting holdet with small photon microprocessor unit packaged of: 5 digrt disploy two isolated ano.

Sources that span the measur. into one compact unrt which is log 4-20mA outputs.and two RS 232/

ing .cnge, o scintillation clamped directly onto the RS 422 seriot outputs are inluded.

detector, mounting hardware, existing process. Interface with .

and microprocessor unit. the microprocessor is vio the -

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distance held constant, the ;Ff Otter.uotion of energy field is The single stainless steel / cost . 88hg 8

gggg %g afp proportional to the change in aluminum explosion proof housing [ gggge v .rm level, geeGG containing the scintillation detector 7 and microprocessor unit. is suitcble w OmOGG. M A precise and efficient scintilla.

tion detector, incorporating a for oreos rated Nemo 4 (4x epoxy coated optional). and FM. CSA &

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measures the energy field and supplies o drift free signal to MVl/00 Hand Held Unit the microprocessor unit which outputs o continuous level indication.

NW3100-2 Continuous Level

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g, Wu B~ Gauge with Remote Electronics For opplicottons where the process, and the NW3100 2 Y[/

location hinders access to the containing the microprocessor detector, the NW3100-2 remote unit is mounted remotely up to o mounted microprocessor unit is maximum of 5.000 feet away, recommended. With this arrangement the NW2001 scintillo- The NW2001 scintillation counter is tion detector is mounted on the suitable for creas roted Nema 4 (4x epoxy coated optional). and FM. CSA & UL Class l Div, l.

Typical -- mm NLh Instonction E --* The NW3100 2 microprocessor

unit is wall mounted housing Calibration , ,

suitable for creas rated Nemo 4x.

i i It is connected to the NW2001 The versatlie software program

% scinti!!ation detector vio 3 allows for o quick precise M' g conouctor shielded cable, The microprocessor is accessed colibrotion and stort-up of the system. Only one calibration h - @v by a membrane keypad located 3* on the front of the unit. The unit is point is needed for start-up, E '

but several points con be powered by 120/240 VAC 50/60 Hz supply. Outputs consisting of:

odded for o more precise measurement.

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5 cigit display, two isolatec

% onolog 4-20mA outputs. ano two RS 232 / RS 422 serial outputs MV3100 2 Wallblounted Unit *

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Power Consumption:

Display: SvA to 20VA The following information is Digital, 4.5 digits required when engineering a system.

Dato Storoge:

EE-Prom Analog: Two(2) Isolated analog outputs (0/4-20mA) . Type and dimensions of vessels.

Serlot: RS 232 /RS-422.

Decoy Compensation: . Wall thickness and materiot; Auto controlvio quartz clock inputs:  ;*""-"'~ Including insutotion details.

x Two.(2)onolog 0/4-20mA Count Rote Range: - '~

• Density of process material.

0-99999 cps NWi1 "d dn ne chg 9, o'

• Gas density in the cose of high T:mperature Range: back litdisplay pressure systems.

-20*C to +50*C - Membrane keyboord dato entry

• Operating temperature range at tne vessel.

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can utilise and extend thepwductive life ofnuclear mdsources that are NW31001 Continuous currently in placefor level mea.sure- LevelGauge ments

Inst:llatisn C nfigurati:ns heese seems testinaties t er ,m a.

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'Corporotion Drive sustuvus=Ts Atlautopo. PA 15001 Etione:412 3'S 1900 m

f , F'oxt 412 378 1926 http://www.bsi-l.com

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IN S T RUME N T S INSTRUMENTS

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a Operating Principib Syst:m Arrang m:nt .c2 := . .= . .A The NW3200 Photon point level Figure 1 shows o typicalloyout of

-_ - ~

. switch utihzes the measuring princi- the level switch. The Photon ple of scintillation technology. The sources and detector are located energy field emitted by a small outside of the vessel at the desired i _

a photon source is attenuated when switch level. The detector is locat- .

the process materialis in the ed opposite of the Photon sources -

moosuring path. A precise and and is connected to the remote efficient scintillation detector. relay module v'io 4 conductor ch. L_ _ ,

( incorporating a solid state crystol, cables. The relay module may be -

measures the energy field and mounted up to o maximum of Relay supplies o dnft free digital signal 5.000 feet away from the detector. Mod'ule to the relay module. The relay module is powered by 12/240 VAC 50/60 Hz supply and outputs o DPST contact rated 10 emp @ 30 VDC or 250 VAC. The UU' ,t.,,,

D*'"'" detector housing is Nemo 4X rated Retrofits and FM/CSA Closs I. Div. I approved. The relay module may The NW3200 point level detector l be panel mounted of provided in con utilize and extend the pro-a Nemo 4X wall mount enclosure. auctive hfe of nuclear scurces that ZUi '**'"*'

omo- are currently in place for point level applications.

Application Information Required The following information is Figure 1 required when designing a system, i I

Technical Data NW 3200

• Type and dimensions of vessel

• Wall thickness and materiol; Display: 8 Digit.14 Segment including insulation details Time Constant: 0.5 to 8 s

• Density of process material

• Gas density in the cose of high Temperature: -4' to +120*F pressure systems. Power supply: 120/240 VAC 50/60 Hz

% i

• Operating temperature of the Power consumption: 15 vA g_- ,

Ccatoctload of relays: 10 amp @

m. . , . mg;g 30 VDC or 250 VAC,1/4 hp N .r Q.;y ., ,,g M'W Memory: Non-Volatile EEPRoM hG $'* Connection cable: 4 conductor.

( shielded, max. length 5.000 feet g (used for NW 3200-2 remote module) 2 Scintillation Electronic housing: Nemo 4X

, Detector For more information, contact mun gw:.Hopeweil Business g,4 V 101 Corporation Porx Dnve

wsinumwis WMAllouloco. PA 15001 g[NES u Phone al2 378

• 1900 gT., Fox: 412

• 378

• 1926 KC http://www csi-l com

_ _ _ _ _ _ _ _ _ _ _ .