ML20040G208
| ML20040G208 | |
| Person / Time | |
|---|---|
| Site: | 07002939 |
| Issue date: | 02/04/1982 |
| From: | Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Raczkiewicz P ST. ELIZABETH HOSP. & MEDICAL CENTER, GRANITE CITY |
| Shared Package | |
| ML20040G209 | List: |
| References | |
| NUDOCS 8202110418 | |
| Download: ML20040G208 (2) | |
Text
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FEB 4 1992 St. Elizabeth Medical Center License No. 12-14132-02 ATTN:
Mr. Paul E. Raczkiewicz License No. 12-14132-03 Vice President License No. SNM-1875 2100 Madison Avenue Granite City, IL 62040 Gentlemen:
This refers to the routine safety inspection conducted by Mr. W. P. Reichhold of this office on December 7 and 8, 1981, of activities authorized by NRC By-product Material Licenses No. 12-14132-02, No. 12-14132-03 and Special Nuclear Material License No. SNM-1875 and to the telephone discussion concerning our findings with you on January 27, 1982.
The inspection was an examination of activities condected under your license as they relate to radiation safety and to compliance with the Commission's rules and regulations cd with the conditions of your license. The inspec-tion consisted of a selective examination of procedures and representative records, observations, independent measurements, and interviews with personnel.
This inspection also included a measurement of the output of your teletherapy equipment. Our measurement was made using a Victoreen Model 570 Condenser R-Meter with Model 621 chamber, calibrated by the National Bureau of Standards Laboratory. The source-to-chamber distance was 80 centimeters and the field size used was ten by ten centimeters. After applying standard correction factors for temperature, pressure, attenuation, inverse square, backscatter, timer error, and roentgen-to-rad conversion, our measurement of the output of your teletherapy equipment was 98.9 rads per minute. The most recent full calibration of your teletherapy equipment, conducted on July 31, 1981, reported a measured output for the same exposure parameters of 107.4 rads per minute.
Applying a correction factor to account for four months and seven days decay, the value calculated from the July 31, 1981, calibration becomes 102.6 rads per minute.
Based on the close agreement in measured output values, we feel the actual output of your teletherapy equipment to be within established guidelines of 15 percent.
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