ML20210R812

Provides Listed Info for Info & Use as State Deems Appropriate.Copy of Page from CPN User Manual Encl

ML20210R812
Person / Time
Issue date:	08/29/1997
From:	Camper L NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Bailey E CALIFORNIA, STATE OF
References
SSD, NUDOCS 9709030395
Download: ML20210R812 (2)

Text

e August 29, 1997 Mr. Edgar D. Bailey, C.H.P., Chief Radiological Health Branch Food, Drugs & Radiation Safety Division State Department of Health Services 714/744 P Street l

P.O. Box 942732 Sacramento. CA 94234 7320

Dear Mr. Bailey:

The following is provided for information, and use, as the State deems appropriate.

Recently, the NRC became aware that the user's manual for the CPN model MC-3 Portaprobe gauge directs the user to expose the tip of the source rod, then tip up the moisture density I

gauge to visually guide the source rod into the bore hole. The source is exposed when the user performs this step. A copy of a page frorn the CPN user'o manualis enclosed. The illustration at the bottom of that page shows the manufacturer's recommended practice that raised this concern.

Although calculatbns performed by NRC staff show that the expected dose to the user for performing this activity is within the exposure limits, for occupational workers, contained in 10 CFR Part 20, wa are referring this to you for your consideration, if you have any questions, please contact Michele Burgess at (301) 415 5868.

Sincerely,h Larry W. Camper, Chief Medical, Academiciand Commercial Use Safety Branch Divl31on of Industrial and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards

Enclosure:

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