ML19350D792
| ML19350D792 | |
| Person / Time | |
|---|---|
| Site: | 07001389 |
| Issue date: | 05/05/1981 |
| From: | Wiedeman D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Schreiner K ST. FRANCIS HOSP., EVANSTON, IL |
| References | |
| NUDOCS 8105190301 | |
| Download: ML19350D792 (2) | |
Text
~'
io
- /p as3, UNITED STATES NUCLEAR REGULATORY COMMISSION n
N E
REGION 111 k
799 ROOSEVELT ROAD GLEN ELLYN, ILLINOIS 60137
%.....o MY 5 W St. Francis Hospital Licetae No. 12-00963-03 ATTN:
Mr. Kenneth Schreiner Licenae No. 12-00963-02 Assistant Administrator License No. SNM-1426
-355 Ridge Avenue INanston, IL 60202 Gentlemen:
This refers to the routine safety inspection conducted by Dr. W. J. Adam, Messrs. J. R. Mullauer and B. Stapleton of this office on April 21, 1981, of activities at St. Francis Hospital authorized by NRC Byproduct Licenses No. 12-00963-03, No. 12-00963-07 and Special Nuclear Material License No.
SNM-1426 and to the discussion of our findings with you and Mr. Eric Zickgraf 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, observatione, 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. After applying standard correction factors for temperature, pressure, inverse square, and timer error, our measurement of the output of your teletherapy equipment was 101.14 roentgens per minute in air. The most recent full calibration of your teletherapy equipment, conde_: ri on February 23, 1981, reported a measured output for the same exposure parameters of 102.7 roentgens per minute. Applying a correction factor to secount for 57 days decay, the value calculated from the February 23, 1981 calibration becomes 100.52 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 + 5 percent.
- g8Ll19, kII.q )&
f, J u Y L.
7 q
'l t.1AY 0 71981 a _.
b"5TE*n'&""
i
\\q4 s
0106190
n m-m I
5 W 2-St. Francis Hospital
[
i No items of noncompliance with NRC requirements were identified during the course of this inspection.
l P
We will gladly discuss any questions you have concerning this inspection.
r i
Sinc
- rely, l
c
,_ J_ _ _.---
?
D. G. Wiedeman, Acting Chief Materials Radiation Protection Section 1
(
cc:
Central Files f
Reproduction Unit NRC 20b PDR NSIC P
k l
f h
h i
l i
1 1
d
--- -