ML20009A994
| ML20009A994 | |
| Person / Time | |
|---|---|
| Issue date: | 07/07/1981 |
| From: | Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Martinson C OTTUMWA HOSP., OTTUMWA, IA |
| References | |
| NUDOCS 8107140612 | |
| Download: ML20009A994 (2) | |
Text
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Mr. C. L. Martinson 1001 E. Pennsylvania Avenue Ottumwa, IA 52501 Gentlemen:
This refers to the routine safety inspection conducted by Dr. W. J. Adam and Mr. J. L. Lynch of this office on June 25, 1981, of activities at Ottumwa Hospital Assoc. authorized by NRC Byproo'uct Material License No. 14-16596-01 and to the discussion of our findings with you and Ms. Annette Nieman at the conclusion of the inspection.
The inspection was an examination of activities conducted under your license as they relate to radiation safety and to compliance with the Commission's rules and regulations and 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 10 by 10 centimeters. Af ter applying standard correction factors for temperature, pressure and timer error, our measurement of the output of your teletherapy equipment was 101.9 roentgens per minute in air.
The most recent monthly spot check of your teletherapy equipment, conducted on June 3, 1981, reported a measured output for the same expocure parameters of 102.3 roentgens per minute. Applying a correction factor b account for 22 days decay, the value calculated from the June 3, 1981 spot check becomes 101.5 roentgens 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 1 5 percent.
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x Iowa Methodist Hospital g7 gj No items of noncompliance with NRC requirements were identified during the course of this inspection.
We will gladly discuss any questions you have concerning this inspection.
Sincerely, D. G. Wiedeman, Acting Chief Haterials Radiation Protection Section 1 cc: DMB/ Document Contro'i Desk (RIDS) e RII RII f
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