ML20004C315
| ML20004C315 | |
| Person / Time | |
|---|---|
| Issue date: | 05/11/1981 |
| From: | Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Mohr J ST. JOSEPH HOSP., CHICAGO, IL |
| Shared Package | |
| ML20004C316 | List: |
| References | |
| NUDOCS 8106030052 | |
| Download: ML20004C315 (2) | |
Text
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/ UNITED STATES -
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~~g NUCLEAR REGULATORY COMMISSION b
c REGION 111 0
799 MOOsEVELT ROAD o
GLEN ELLYN,lLLINOIS 60137 MAY 111981 St.' Joseph Hospital' License No. 12-03832-02 ATTN:
Mr. Joseph Mohr License No. 12-03832-03 Assistant Administrator Professional and Ancillary Services 2900 North Lake Shore Drive Chicago, Illinois 60657 Gentlemen:
This refers to the routine safety inspection conducted by Mr. R. E. Burgin and Ms. E. Matson of this office on April 22, 1981, of activities authorized by NRC Byproduct Material Licenses No. 12-03832-02 and No. 12-03832-03 and to the discussion of our findings with you and Mr. L. Ahmed, RSO, 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 inspection consisted of a selective examination of procedures and representative records, observations, independent measurements, and interviews with personnel.
In addition to the above areas, the inspectors reviewed corrective actions taken in response to the items of noncompliance identified during our November 1977, inspection. We have no further questions in regard to these matters.
This inspection also included a measurement of the output of your teletherapy equipment. Our measurement was made using a Victoceen 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 app 1 ing standard correction f
factors for temperature, pressure, timer error, and roentgen-to-rad conversion, our measurement of the output of your teletherapy equipment was 124.5 rads per minute in air. The most recant dose verification of your teletherapy equipment,.
calculated for April 15, 1981, reported a measured output for the same exposure a
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parameters of 130.8, rads pe'r-minute. ~ Applying a' correction factor to ' account' for-seven days: decay,-the value calculated from.the April.15,-1981,. verification becomes >130.47 rads per. minute.
Based onLthe close agreement in measured output values',.we feelfthe actual
. output of your' teletherapyzequipment; to be within the established guide of
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'15;. pe rcent.
During this inspection,. no -items of-noncompliance.were identified --for License.
No...:12-03832-03;'however, for License'No. 12-03832-02; certain of;your ac-tivities appeared to be in noncompliance with-NRC' requirements,'as specified~
.in enclosed Appendix AJ LA written response; submittedLunder oath or affirma-tion,:isfrequired.
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, e. wil1~ gladly discuss any questions you have concerning this' inspection.
W
.Since ely,.
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-m D. G..Wiedeman, Acting Chief Materials Radiation Protection Section 1
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Enclosure:
Appendix'A, Notice of Violation
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Central Files Reproduction Unit NRC 20b
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