ML20004E641
| ML20004E641 | |
| Person / Time | |
|---|---|
| Issue date: | 05/13/1981 |
| From: | Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Sister Bonavent RESURRECTION HOSP., CHICAGO, IL |
| Shared Package | |
| ML20004E642 | List: |
| References | |
| NUDOCS 8106120423 | |
| Download: ML20004E641 (2) | |
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UNITED STATES 1
NUCLEAR REGULATORY COMMISSION A
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MAY 131981
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- r. \\ s Resurrection Hospital License No. 12-05435-0l' N
ATTN: Sister Bonaventure License No. 12-05435-03 Administrator 7435 Talcott Avenue Chicago, Illinois 60631 Gentlemen:
This refers to the routine safety inspection ronducted by Ms. E. Matson and Mr. J. Mu11auer of this office on April 30, 1981, of activities at Resurrection Hospital authorized by NRC Byproduct Material Licenses No. 12-05435-01 and No. 12-05435-03 and to the discussion of our findings with Mr. John Smith, Dr. S. Frank and other members of your staff 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 witn the Commission's rules and regulations and with the conditions of your license.
The inspection consisted of a selective examination of procedures and representative records, observations, independent measurements, and interviews with personnel.
During this inspection, certain of your activities appeared to be in noncompliance with NRC requirements, as specified in enclosed Appendix A.
A T,iritten response, submitted under oath or affirmation, is required.
This inspection also included a measurement of the output of your tele-l therapy equipment. Our measurement was made using a Victoreen Model 570 i
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 i
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 88.85 rads per minute at the point of maximum buildup in a phantom. The most recent monthly spot check i
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Resurrection Hospital MAY 131981 of your teletherapy equipment, conducted on April 1, 1981, reported a measured output for the same exposure pcrameters of 91.40 rads per minute.
Applying a correction factor to account for 29 days decay, the value cal-culated from the April 1, 1981, calibration becomes 90.45 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.
We t;ill gladly discuss any questions you have concerning this inspection.
Sincerely, c
D. G. Wiedeman, Acting Chief Materials Radiation Protection Section 1
Enclosure:
Appendix A, Notice of Violation cc w/ encl:
Central Files Reproduction Unit NRC 20b PDR NSIC l
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