ML20151S257

Annual Operating Rept for 1985

ML20151S257
Person / Time
Site:	05000139
Issue date:	12/31/1985
From:	Robkin M WASHINGTON, UNIV. OF, SEATTLE, WA
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 8602060472
Download: ML20151S257 (5)

Text

ANNUAL REPORT FROM THE UNIVERSITY OF WASHINGTON FacIIItv License R-73 A. A Narrative Summary 21 Ooerating Exoerlence 12r 1985 The University of Washington Nuclear Reactor was operated for 215.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> (baseline to shutdown) and generated 10840 KWH of energy during 1985. The 209 experiment runs consisted-of sample irradiations for neutron activation analysis, Isotope production, class demonstrations, operator training, operator exams, TLD frradiations, and calibrations.

B. Unscheduled Shut Downs RA11 Power Level Cause Jan 29 95 kw No Indication, except rods dropped and dump val ve opened. Probab le cause in al I cases is the photo-diode Isolation in the safety amp-lifier dropping below operat ional l eve i as a resu it of 110 AC noise.

Feb 22 2 watt Refer to Jan 29 Apr 22 95 kw Refer to Jan 29 C. Corrective And Preventive Maintenance Having Saf ety Stanificance

1. Routine calibrations and maintenance as scheduled.

2. Changed the gaskets on fuel box covers on September 12, 1985.

3. Replaced HV bias power suppl y on A-41 monitoring system on October 24, 1985.

D. Discussions ni Changes Carried Agi Pursuant in la CEE 50.59

1. None n#hd\

F' 0602060472 051231 'N PDR ADOCK 05000g ?

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E. Radioactive Releases in ihg Environs

1. During 1985, the Argon-41 released from the facility was measured to be 28.6 Curles.

2. Liquid waste consisted of one retention tank of 1440 gallons pumped into the sanitary sewer on April 4, 1985.

The total activity present was 0.09 microcuries of beta activity and 0.04 microcuries of a l pha activ ity.

F. Environmental Survevs Outside ihn FacIIItv TLD monitoring data was col lected outside the reactor building at locations shown on the enclosed drawing. Results are tabulated on attached table.

G. Slonificant Exoosures (over 122 mrem inn vear)

For the year 1985 there were no significant exposures, i e.,

over 500 mrem for the year.(January through November: December data not available at report time. No incidents occurred in December which would lead to excess personnel exposure.)

l

l ENYlRONMENTAL DOSIMETER DATA - 1985 Values reported are in millirem with M being minimum.

See following page for a diagram of the placement of the dosimeter location around the facility.

The dosimeters each contain two TLD chips that are supplied by R.S. Landauer,Jr & Co,G l enwood, Illinois 60425. The exception being the exposure from 12/1/84 to 12/31/84 which had a film badge in additon to the TLD chips.

Exposure Period 12/1/84 to 1/1/85 to 4/1/85 to 7/1/85 to 12/31/84 3/31/85 6/30/85 9/30/85 Location TLD Film 1 M M 20 M 10 2 20 M 30 20 20 3 20 M 40 30 20 4 10 M 30 30 30 5 10 M 30 20 110 6 10 M 30 20' 20 7 M M 30 10 30 l

l 8 M M 20 M M j l

Changed the exposure period from monthly to quarterly as of l January 1, 1985 with the new monitors using only TLD's. l l

The data for 12/1/84 to 12/31/84 Include the reported values for the film badge which are the second column in the reported data.

The data for the exposure period of 10/1/85 to 12/31/85 were not avail ab le at the time the report was prepared.

1 i

OUTSIDE DECK t

Q i CONTROL CLASS ROOM ROOM REACTOR O

D .

G @

i 1

(50 FEET FROM BUILDING NUCLE AR RE ACTOR L ABOR ATORIES LOCATION OF ENVIR0 MENTAL MONITORS UNIVERSITY of WASHINGTON COLLEGE of ENGINEERING DATE

)jg7jg4 DRN.BY FRY _

APPROVED BY FRY SCALE NONE DwG. NO. 197-T-101 - A

UNIVERSITY OF WASHINGTON SEATTLE, WASHINGTON 98195 College of Engineering Department of Nuclear Engineering January 30,1986 Operating Reactors Director Office of Nuclear Regulation Nuclear Regulatory Commission Washington, DC 20555 Docket No. 50-139 Dear Sir Enclosed is the routine Annual Report for the period January 1, 1985 to December.31, 1985 in accordance with Section V I I l.K.3 of Append Ix A, TechnIcai Specifications for Faci lIty L icense No. R-73.

Please let me know if additional information is needed relative to this report.

Sincerei. ours,

>< cA M(u r I c e A. Rob k i n , P h. D.

Director Nuclear Engineering Laboratories MAR:

Enclosure cc: Dr. J.R. Bowen Dr. A.L. Babb Mr. W.P. Miller NRC Region V 6Y

• I Benson Hall, BF-10 / Telephone: (206) 543-2754 I l-