ML20045F059
ML20045F059 | |
Person / Time | |
---|---|
Site: | Idaho State University |
Issue date: | 12/31/1992 |
From: | Clovis R IDAHO STATE UNIV., POCATELLO, ID |
To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
References | |
NUDOCS 9307060365 | |
Download: ML20045F059 (3) | |
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1 STATE UNIVERSITY June 30, 1993 U.S. Nuclear Regulatory Commission Document Control Desk '
[$g Washington, D.C. 20555 Campus Box 8060 Pocatello, Idaho Gentlemen:
83 N B060 Attached is the Annual Operating Report for the Idaho State !
University AGN-201 Nuclear Reactor, License R-110, Docket No. 50-284, for the calendar year 1992.
Respectfully submitted,
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R. David Clovis Reactor Supervisor i
cc: V. Charyulu, Reactor Administrator -
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IDAHO STATE UNIVERSITY REACTOR ANNUAL OPERATING REPORT FOR 1992
- 1. Brief Narrative of Changes:
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- a. There were no changes to the f acility design, performance characteristics or operating procedures relating to reactor safety during this reporting period.
- b. Results of major surveillance tests and inspections.
- 1) Channel tests on all safety channels were performed i and all scram interlocks were tested and found to be satisfactory and within specification.
- 2) Power and period calibrations were performed with satisfactory results.
- 3) The shield tank was inspected and no leaks or excessive corrosion were noted.
- 4) a) The control rod drive mechanisms were inspected and tested with satisfactory 4
results.
b) Scram times were measured and found to be less than 120 milliseconds.
c) Control and safety rod worths and run-up times l were measured; from these values the reactivity insertion rate was determined to be less than 0.045% per second for any rod.
d) The shutdown margin was determined to be greater than 1.75% with the most reactive rod fully inserted.
- 2. The total operating time for the reactor during 1992 was nearly 147 hours0.0017 days <br />0.0408 hours <br />2.430556e-4 weeks <br />5.59335e-5 months <br /> with a total thermal energy output of approximately 96 Watt-hours. The monthly breakdown of operation time follows:
Month Hours Month Hours January 0.0 July 0.0 February 24.0 August 7.6 March 12.4 September 14.3 April 4.9 October 44.7 May 5.0 November 20.8 June 7.1 December 5.9
- 3. Unscheduled shutdowns: r There were no unscheduled shutdowns.
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- 4. Safety related maintenance included the following:
- a. Repaired the input cable connection from the nuclear '
instrument detector channels #2 and #3. ;
- 5. Changes to the Facility: l
- a. There have been no changes to the facility as described l in the application for license. !
- b. There were no changes to the procedures as described in :
this facility's Technical Specifications. j
- c. No new or untried experiments or tests were performed during the reporting period. l
- 6. No summary of safety evaluations are submitted at this time, i because there were no changes to operating procedures, I testing, or experiments to this facility during the 1992 ;
calendar year, j
- 7. No radiation effluents were released or discharged to the .;
environment during 1992. ;
- 8. Neutron and beta / gamma radiation surveys performed on the 3 exterior walls of the f acility indicated' that maximum combined ;
contact radiation levels were less than 2 mrem /hr. l
- 9. No person using the f acility received a whole body exposure of greater than 50 millirem during 1992. l l
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