ML20071K593

Submits Annual Operating Rept for Jul 1981-June 1982

ML20071K593
Person / Time
Site:	University of Maryland
Issue date:	07/27/1982
From:	Belcher R MARYLAND, UNIV. OF, COLLEGE PARK, MD
To:	Tedesco R NRC
References
NUDOCS 8208020138
Download: ML20071K593 (5)

Text

, Uniwrsity of Marytana Department of Chemical and Nuclear Engineering COLLEGE PARK, MARYLAND 20742 July 27, 1982 Dr. Robert L. Tedasco Assistant Director for Reactor Operations ,

Nuclear Regulatory Commission Washington, D.C. 20555

Dear Dr. Tedesco:

This report is submitted in accordance with the requirements set forth in our Technical Specifications for the Maryland University Training Reactor. This report covers the time period from June 30, 1981 through June 30, 1982.

A. Summary of Operation Experience No difficulties were encountered with the reactor during this reporting period. We continued to provide reactor service to the Nuclear Engineering courses, primarily, ENNU 320 - Nuclear Engineering Technology. This service utilized the reactor five af ternoons a week and two (2) hours on Saturday morning.

Considerable effort was directed to the development and implementation of a DOE sponsored " Reactor Sharing Program."

Basically, this program allowed us to make the reactor facility available to other Universities and schools. The response of local colleges and universities was gratifying. See appendix A for participants.

OuhReactorOperatorsTrainingProgramproducedfour (4) c candidates for the NRC Reactor Operators examination in September i of this year. Summer job committments and NRC schedule prevented an earlier examination.

No major changes were made to the reactor during this reporting period.

1. o wE huclear Engineering Program 8208020138 820727 Tel. 301454 2430/6 PDR ADOCK 05000166 R PDR

2 B. Reactor Operations ,

During the period 30 June 1981 through 30 June 1982 the reactor was operated 143 times and produced a total of 6.7 megawatt-hours of energy.

C. Equipment Surveillance and Tests Control rod inspection was not performed during this reporting. period. Next scheduled inspection is 12/18/82 in accordance with part 4.2c of our Technical Specifications.

However, the rod drop time was measured. Results are tabulated below:

Rod Identification Rod drop time, Sec.

SHIM I 0.70 SHIM II 0.70 Reg. Rod 0.62 All area monitors were calibrated on a monthly basis or when operation indicates the need. The reactor power was determined by a calorimetric method described in our procedure manual. No significant calibration change was required.

D. EmehencyShut-downandScrams No emergency shut-down or scram occurred during this operating period.

E. Maintenance Items Over a period of one or two weeks during the first part of this reporting season we experienced an unusual number of unexpected rod drops which would shut down the reactor. A systematic investigation of the magnet current system finally revealed that the line voltage had dropped from the usual 114 V to about 95 V. This low voltage was not sufficient to stabilize the interlocks and relays. The problem was found to be in the building power supply and was corrected. We installed a line voltage meter in the system and no problem has since been encountered.

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F. A summary of the nature and amount of radioactive effluents i released or discharged to the environment and or radioactive waste shipped off site for disposal.

During this reporting period no waste water containing any measurable radioisotope was discharged to the sewage system.

In addition, monthly air samples were taken in the reactor area.

The samples received no activity greater than background.

G. Radiation Exposures In the period June 31, 1981 through June 30, 1982 approxi-mately 323 people visited the reactor facility. (See Appendix B. )

This is in addition to the badged personnel taking reactor courses and operating personnel. In all cases the radiation received was negligible. Floor and area wipes have beer. routinely carried out with the results that any contamination was far below the maximum permissible level.

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H. Changes to the Facility on Procedures, Tests, and Experiments.

No substantial changes were made to any of these categories during this reporting period.

Sincerely, h $h Ralph 'L. Belcher Nuclear Reactor Director RLB/elr

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4 Appendix A j REACTOR SHARING PARTICIPANTS Howard University John Hopkins University i Morgan State University Towson State University Prince Georges Community College il IE [

Appendix B c

High Schools and Groups Touring the Facility Catoctin High School Town and Country Day School Bethesda - Chevy Chase High School Gwynn Park High School Prospect Hall High School Eleanor Roosevelt High School Appendix C INTERNATIONAL VISITORS England

( Japan Switzerland ,

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5 Appendix D (3

Papers Presented from the Use of MUTR.

1 Authors Title Conference 7 G.D. Guttman Instrument Neutron

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R.L. Belcher Activation Analysis as a gpg Diagnostic Screening  ;

Technique for cystic Fibrosis /

G. Gelac An Investigation of Report to E.G. & G.

Mercuric Iodide as a to be presented for i R.L. Belcher beta ray spectrometer publication.  !

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Dave Kelly A study of a Simplified /

Boronometer Presented at the Spring >

Angela Munno Student ANS meeting in Atlanta i

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