ML20129B951
| ML20129B951 | |
| Person / Time | |
|---|---|
| Site: | Idaho State University |
| Issue date: | 12/31/1984 |
| From: | Ramsey G IDAHO, UNIV. OF, MOSCOW, ID |
| To: | Thomas C Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8507150639 | |
| Download: ML20129B951 (3) | |
Text
ANNUAL OPERATING REPORT Idaho State University AGN-201 Nuclear Reactor Pocatello, ID 83209
- 1) Brief Narrative of Changes There have been no changes in facility design, performance characteristics or operating procedures relating to reactor safety during the calendar year, 1984 a) A visual inspection of the control rod drive mechanisms was satisfactory.
b) Scram drop times of all control rods were less than 100 milliseconds.
c) Rod run-up times were measured and average reactivity insertion rates calculated. The maximum average reactivity insertion rate was 0.040%
per second for the course control rod, d) Channel tests of all safety channels and interlocks have been satisfactory.
e) Power and period calibrations were performed and no significant changes from the previous calibration were found.
f) The shield tank was inspected and no excessive corrosion or water leakage was apparent.
g) Shutdown margin was measured and found to be 2.19% reactivity.
- 2) Monthly Tabulation of Reactor Operating Hours for 1984:
Month Hours Month- !!ours January 7.09 July February 11.46 August 0.45 March 5.16 September 12.50 April 29.04 October 14.02 May November 2.38 June December 3) List of Unscheduled Shutdowns: None.
8507150639 DR 841231 ADOCK 05000284 PDR Ao$
Annual Operating Report AGN-201 Nuclear Reactor Page Two
- 4) Discussion of Major Safety Related Corrective Maintenance On March 27, 1984, instrument number 2 became irratic during routine chec-kout. The Channel #2 high voltage power supply was irratic. All attempts to repair the original vacuum tube supply were futile and the supply was replaced with an equivalent solid state power supply. After power supply replacement, all Channel #2 shutdowns were operationally tested satisfactorily.
- 5) Changes to the Facility a) There have been no changes to the facility as described in the applica-tion for license.
b) There have been no changes to the procedures as described in the facility Technical Specifications.
c) No new experiments were performed with the AGN-201 reactor during the calander year, 1984.
- 6) Summary of Safety Evaluations There were no new changes, tests, or experiments approved or performed during this reporting period.
- 7) Summary of Radioactive Effluents Released or Discharged to the Environment.
Liquid Airborne Solid Curies Volume Curies Volume Curies Volume 0 0 0 0 0 0
- 8) Summary of Radiological Surveys Outside the Facility No environmental surveys have been performed outside the facility.
- 9) No person received greater than 100 millfrem during this reporting period, and no person under 18 years of aEe received greater than 50 millirem.
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\ l Idaho State University Pocatello, Idaho 83209 School of Engineenng Box 8060 (208) 236-2281 27 June 1985 Cecil 0. Titomas, Chief Division of Licensing Standardization and Special Projects Branch Mail Stop 340 U. S. Nuclear Regulatory Comission Washington, DC 20555 ,
Dear Mr. Thomas:
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,1984.
Respectfully submitted, n/h_ ~
Gerald F. Ramsey Reactor Supervisor GFR:bgs CC: V. Charyulu, Dean, School of Engineering U. S. Nuclear Regulatory Commission C/0 Document Management Branch Washington, DC 20555 fOSO
!I ISU is An Equal Opportinity Employer i