ML20149L407
| ML20149L407 | |
| Person / Time | |
|---|---|
| Issue date: | 02/16/1995 |
| From: | Steven Baggett, John Lubinski NRC |
| To: | |
| Shared Package | |
| ML20149L368 | List: |
| References | |
| SSD, NUDOCS 9602260252 | |
| Download: ML20149L407 (4) | |
Text
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EEALUATION OF DEVICE NO.: NR-420-D-825-B DATE: February 16, 1996 PAGE 1 OF 4 1
DEVICE TYPE:
"O" Frame Beta Gauges MODEL:
SU-S7 MANUFACTURER / DISTRIBUTOR:
LFE Industrial Systems Corporation 55 Green Street Clinton, MA 01510 l
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SEALED SOURCE MODEL DESIGNATION:
LFE Model SS-7A t
\\
I ISOTOPE:
MAXIMUM ACTIVITY:
Krypton-85 1200 millicuries (44.4 GBq)
LEAK TEST FREOUENCY:
Not Required l
PRINCIPAL USE:
(E) Beta Gauges CUSTOM DEVICE:
YES X
NO 9602260252 960221 PDR RC SSD PDR
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-420-D-825-B DATE: February 16, 1996 PAGE 2 OF 4 DEVICE TYPE:
"O" Frame Beta Gauges DESCRIPTION:
The Model SU-S7 beta gauge is the same gauge as the LFE Model SU-S3 (registered separately).
The only difference is'that the Model SU-S7 incorporates krypton-85 instead of americium-241.
LABELING:
All devices distributed were labeled with the following:
" Caution Radioactive Material," radiation symbol, isotope, activity, and model number.
Devices distributed to general licensees included the following-additional information: (The following markings were shown on aluminum and stainless steel marking plates)
" Removal of This Label is Prohibited.
This Label Shall be Maintained-on the Device in Legible Condition, Caution, Radioactive Material," Radiation Symbol, Name and Address of Manufacturer, Isotope,. uantity, Date, Q
Model Number, Serial Number, " Turn Source Off When Necessary to Stay Within 3 ft. of Green Light.
Green Light Indicates Source Off.
Do Not Place Hands'in Measuring Gap."
The following statement is also included:
REMOVAL OF THIS LABEL IS PROHIBITED THIS LABEL SHALL BE MAINTAINED ON THE DEVICE IN LEGIBLE CONDITION THE RECEIPT, POSSESSION, USE AND TRANSFER OF THIS DEVICE ARE SUBJECT TO A GENERAL LICENSE OR THE EQUIVALENT AND THE REGULATIONS OF THE U.S. NRC OR A STATE WITH WHICH THE NRC HAS ENTERED INTO AN AGREEMENT FOR THE EXERCISE OF REGULATORY AUTHORITY.
ABANDONMENT OR DISPOSAL' PROHIBITED UNLESS TRANSFERRED TO PERSONS SPECIFICALLY LICENSED BY NRC OR AN AGREEMENT STATE.
OPERATION PROHIBITED IF THERE IS INDICATION OF FAILURE OR DAMAGE TO SHIELDING, SOURCE CONTAINMENT OR ON-OFF MECHANISM.
ONLY PERSONS SPECIFICALLY LICENSED BY NRC OR AGREEMENT-STATE MAY INSTALL, DISMANTLE. RELOCATE.
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES l
SAFETY EVALUATION OF DEVICE NO.: NR-420-D-825-B DATE: February 16, 1996 PAGE 3 OF 4 DEVICE TYPE:
"O" Frame Beta Gauges LABELING (Cont. ) -
REPAIR OR TEST THIS DEVICE.
DEVICE SHALL BE TESTED FOR PROPER FUNCTIONING OF ON-OFF MECHANISM AND INDICATOR, IF ANY, AT INSTALLATION, AT SOURCE REPLACEMENT AND THEREAFTER AT NO LONGER THAN 6 MONTH INTERVALS.
- LOSS, THEFT OR TRANSFER OF THIS DEVICE TO ANOTHER LICENSEE AND FAILURE OR DAMAGE TO SHIELDING, SOURCE CONTAIhTENT OR ON-OFF MECHANISM MUST BE REPORTED TO NRC OR AGREEMENT STATE.
CONDITIONS OF NORMAL USE:
The devices are designed for to measure thickness of materials in industrial environments.
Expected operating conditions are:
- Temperature - Up to 300 F (149*C)
Humidity - Up to 100%
e Vibration - Industrial conditions of slight to moderate 1
vibration.
PROTOTYPE TESTING:
In lieu of prototype testing, device integrity was verified by comparison to the Model SU-S3.
In addition, LFE has indicated that they have no information concerning prototype testing of the devices.
However, they have indicated there have been no reported device failures resulting in a radiation hazard.
EXTERNAL RADIATION LEVELS:
The radiation levels from the device are controlled with shielding such that the levels do not exceed 5 mR/hr at 12" (30.5 cm) from the surface.
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE NO.: NR-420-D-825-B DATE: February 16, 1996 PAGE 4 OF 4 DEVICE TYPE:
"O" Frame Beta Gauges LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:
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- The device may be used by specific or general licensees of l
NRC or an Agreement State.
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- Handling, storage, use, transfer, and disposal:
To be determined by the licensing authority.
- This registration sheet and the information contained within i
the references shall not be changed without the written consent of the NRC.
l-SAFETY ANTLYSIS
SUMMARY
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These devices are no longer distributed by the LFE.
However, LFE may provide servicing for devices in use and may accept return of l
the sources.
LFE has indicated that it-has distributed l
approximately 19 of these model devices.
REFERENCES:
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l The following supporting documents for the Model SU-S7 are hereby incorporated by reference and are made a part of this registry document.
- LFE's letters dated September 26, 1995, September 16, 1991,.
and August 6, 1991, with enc?,sures thereto.
ISSUING AGENCY:
U.S. Nuclear Regulatory Commission y
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Date:
_Februa ry 16, 1995 Reviewer:
John W.
Lubinski I
Date:
February 16, 1995 Concurrence:
4 4
'5teven Baggett I
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