ML20151L219

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Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Device for Model 120.Certificate: NR-8091-D-809-S
ML20151L219
Person / Time
Issue date: 07/21/1997
From:
NRC
To:
References
SSD, NUDOCS 9708060280
Download: ML20151L219 (6)
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE 1

NO.: NR-8091-D-809-S DAIE1 July 21, 1997 PAGE 1 OF 4 DEVICE TYPE:

Panoramic Radiography Exposure Device MODEL: 120 l

MANUFACTURER /DIblafBUTOR:

Cumberland Research Corp.

Port Norris, NJ 08349 i

SEALED SOURCE MODEL DESIGNATION:

Cumberland Model 120 Source ISOTOPE:

MAXIMUM ACTIVITY:

Iridium-192 100 curies (3.7 TBq)

Depleted Uranium (Shielding) 27 lbs. (12.3 kg) 4 LEAK TEST FREOUENCY:

6 Months PRINCIPAL USE: (A) Industrial Radiography CUSTOM DEVICE:

YES X

NO 9708060200 970721 PDR RC SSD PDR

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-8091-D-809-S DATE:

July 21, 1997 PAGE 2 OF 4 DEVICE TYPE:

Panoramic Radiography Exposure Device DESCRIPTION:

The device consists of 3/8" (9.5 mm)

I.D.

titanium "S"

tube encased in a monolithic depleted uranium shield (27 pounds) all contained within a 1/8" (3.2 mm) thick, outer, stainless steel case 9" x 6-1/2" x 4"

( 22 8. 6 mm x 165.1 mm x 101. 6 ' rmn).

Total weight is 38-1/2 pounds (17.4 kg).

The outer case consists of two pieces secured around the shield by capscu ws and filled with epoxy to prevent shifting of the-uranium shield and protect the device from shock damage.

A lock-box is attached to the back of the device and includes a key lock which when locked prevents the source assembly from moving more than 3/8" within the "S" tube. The manufacturer states that radiation levels are within the limits of 10 CFR 34.21 with 5/8" (15.9 mm) movement.

With the device locked the female half of the connector is easily accessible for hook-up.

A spring-loaded snap connector on the drive-cable conduit cannot be attached to the fitting on the device at the lock-box unless the two halves of the connector are properly mated.

A Teleflex crank assembly is used to propel the drive-cable through the drive-cable conduit, through the exposure device "S"

tube, and through the source guide tube to the end cap for making panoramic exposures.

The drive-cable guide tube is 25 ft (7.6 m) long and the source guide tube is 23'ft (7.0 m) long.

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-8091-D-809-S DATE:

July 21, 1997 PAGE 3 OF 4 DEVICE TYPE-Panoramic Radiography Exposure Device LABELING 1 The device bears four metal labels.

An aluminum label at the lock box contains the following:

SOURCE IDENTIFICATION ISOTOPE CURIES DATE S/N

]

MOD.

NO.

The outer container of the device bears three labels: " CAUTION RADIOACTIVE SHIELDING URANIUM", " CAUTION RADIOACTIVE MATERIAL",

and,

"(Radiation Caution Symbol, Magenta on Yellow)

CUMBERLAND RESEARCH CORP.

MODEL CRC-120 SERIAL NO.

PORT NORRIS, N.J.

HOUSTON, TEXAS BERKELEY, CALIF."

DIAGRAM:

See attachment 1.

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-8091-D-809-S DATE:

July 21, 1997 PAGE 4 OF 4 DEVICE TYPE:

Panoramic Radiography Exposure Device EXTERNAL RADIATION LEVELS:

Radiation levels at six inches (152.4 mm)from the device with a 120 curie (4.44 TBq) Iridium-192 source do no exceed 29 mr/hr (0.29 mSv/hr).

The source is less than four inches (101.6 mm) from the nearest outer surface when in the storage position.

LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

Sources may be changed using the Cumberland Research Corporation Model 120 Source Changer.

The device manual covers assembly and operation of the device, including the use of a survey instrument; radiation levels associated with the device; and inspection and maintenance procedures SAFETY ANALYSIS

SUMMARY

As of the effective date of this document, the Model 120 Panoramic Radiography Exposure Device is no longer manufactured and distributed by Cumberland Research Corp. Cumberland Research Corporation's materials license expired on July 31, 1977 and the company is no longer in business.

This device was approved for licensing by the Atomic Energy Commission (AEC) on July 23, 1970.

There is insufficient information on file for this device to perform a safety evaluation.

Therefore, this certificate is being reissued without further review based on the original review and approval issued by AEC.

l I

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-8091-D-809-S DATE:

July 21, 1997 ATTACHMENT 1 1

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PAGE1 NRC FORM 567 U. S. NUCLEAR REGULATORY COMMES40N Des)

REQUEST FOR A SEALED SOURCE OR 3/;7 DEVICE EVALUATION INSTRUCTIONS: Send the request AND a copy of all related letters /apphcahons and drawings to: The Scaled Source Safety Secten, ATTN: Cluef, OWFN Mo41 Stop 6 H3. Change the License Tracking System milestone to 19 and eseign to reviewer code B-5.

1 NOTE: Retaan a copy of this request with the application and background flies.

REQUESTER REGION /LOCATlON:

[u -lu g.-* e I hs (M6 s"f

]l ll lil IV V

HQ LFDCB l

VELEPHONE NUMBER DATE TYPE OF ACTION REQUESTED (Check as appropriate) i j

APPUCANT'S NAME SOURCE REVIEW AMENDMENT OF REGISTRATION SHEET MAIL CONTROL NUMBER (S)

VICE REVIEW BER S)

LETTER /APPUCATON DATE UCENSE NUMBER (S)

CUSTOM REVIEW 4

i eav s 1

COMMENTS.

,f ; y f, r. M n d',

c (Yl

^

ic v n

FOR SSSS USE ONLY REVIEWER MODEL NUMBERS (4,

NUMBER ASSIGNED l

l'

. y w:.,** / ec

$"/f DATERETe 47 3/11/f?'

DATE ASSIGNED DATE TO FEES TYPE OF ACTION (Indicate the number of each type) i

,fCOMMERCIAL DISTRIBUTION (FORMAL) l USE BY A SINGLE APPLICANT (CUSTOM)

SOURCE (9C)

DEVICE (9A)

SOURCE (90)

DEVICE (98)

]NEW

]NEW

] NEW NEW AMENDMENT

/

AMENDMENT AMENDMENT AMENDMENT

/

}

d NO SAFETY EVALUATION REQUIRED j LICENSING ACTION REQUIRED IF KNOWN NO NO FEES REQUIRED

) OTHER (Specity)

TOTAL NUMBER OF NOTES

{,

,, f g % j,-@K' 4

REVIEW HOURS NUMBER OF

)

DEFICIENCY LETTERS

,a~tU NUMBER OF DEFICIENCY CALLS FOR BILLING PURPOSES ONLY

] NEW REGISTRATION -

ODUCT INACTIVE -

NAME CHANGE ADDRESS CHANGE i

ADD TO BILLING REMOVE FROM BILLING FOR FEE USE ONLY TYPE OF FEE FEE CATEGORY 90 4

e

._J

]9A U 98 9C l

AMCUNf RECEIVED /

(fY ' ge.

CHECK NUMBER MATANN UPDATED j

AS REQUIRED o^ " c"

} ? g, j ') } M_]gTSYS PDATED

-,E -

-,E COMMENTS l

NRC FORM 667 (ILS3)

ORIGINAL TO SSSS

i l

July 21,1997 Note to File:

Based on the fact that Cumberland Research Colp.'s (CRC) material license expired on July 31,1977 and the company is no longer in business, the following registiation certificates have been changed to inactive status:

1 FROM:

TO:

NR-245-D-101-U NR-8091-D-801-S NR-245-S-102-U NR 8091-S-802-S NR-245-S-103-U NR-8091-S-803-S N R-245-S-104 -U NR-8091-S-804-S Nn-245-S-105-U NR-8091-S-805-S NR-245-S-106-U N R-8091-S-806-S NR-245-S-107-U NR-8091-S-807-S NR-245-S-108-U NR-8091-S-808-S NR-245-D-109-U NR-8091-D-809-S NR-245-D-110-U NR-8091-D-810-S NR-245-S-111-U NR-8091-S-811-S NR-245-D-112-U NR-8091-D-812-S NR-245-S-113-U NR-8091-S-813-S NR-245-D-114-U NR-8091-D-814-S NR-245-S-115-U NR-8091-S-815-S NR-245-D-116-U NR-8091-D-816-S

. ) EDk j

NR-245-S-117-U NR-8091-S-817-S F

NR-245-S-118-U NR-8091-S-818-S pl NR-245-S-119-U NR-8091-S-819-S These devices / sources were approved for licensing purposes by the Atomic Energy Commission (AEC) in the late 60's and early 70's. There is insufficient information on file to perform safety evaluations The background files only contained the registration certificate and NUDOCS only had licensing information.

Archive files form Oak Ridge contain original AEC registration, mostly just correspondence letters between AEC and CRC, a lot of engineering drawings, but little, if any, technical information. Therefore, these certificates are being reissued without further review based on the original review and approval issued by AEC.

I'

' N.)

(&

/

Eric Compton, Engineering Aide Sealed Source Safety Section 8 70 IIO X b Ip.

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