ML20011A289

Informs That Research Reactor Beryllium Reflector Will Be Replaced Starting 811009,contrary to Planned Summer of 1982 Date.Replacement Will Take Approx 1 Wk.Addl Info Will Be Provided in Forthcoming Annual Rept

ML20011A289
Person / Time
Site:	University of Missouri-Columbia
Issue date:	09/23/1981
From:	Alger D, Mckibben J MISSOURI, UNIV. OF, COLUMBIA, MO
To:	John Miller Office of Nuclear Reactor Regulation
References
NUDOCS 8110080455
Download: ML20011A289 (2)

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Research Reactor Facility UNIVERSITY OF MISSOURI g,,,,,ch g,,k Columbia, Missouri 65211 Tetephone (314) 882-4211 September 23, 19C1 James R. Miller _.

dardization and Special Projects Branch 4' 't g j%p  ?

Division of Licensing -

Office of Nuclear Reactor Regulation OC7 g 7920 Norfolk Avenue -.

Bethesda, MD 20014 fg% .; k. , E708/4

Reference:

License R-103, Docket 50-186 a .% v ff

Dear Mr. Miller:

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SUBJECT:

REPLACEMENT OF BERYLLIt'M REFLECTOR AT UNIVERSITY OF MISSOURI

, RESEARCH REACTOR (MURR) ,

Str.eting about October 9,1981 the University of Missouri will re-

, move the existing beryllium reflector of the Research Reactor and in- {

i stall a new one. The replacement and subsequent tasts, measurements, I and calibrations are expected to be completed in less than one week.

The reactor will be returned to full operation following the maintenance j period.

i This reflector replacement does not involve a change in the tech-nical specifications incorporated in the license or an unreviewed safety question as defined in 10CFR50.59, and therefore does not require prior Commission approval. This letter is submitted for information.

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We had planned a several week shutdown during the Summer of 1982 to i

make several changes to the plant and perform some mid-life maintenance  :

L including replacing the beryllium reflector. During a recent inspection I of the reactor pool water system strainer, several particles of beryllium i

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i COLUMBIA KANSAS CITY ROLLA ST. LOUIS j

} I. 110080455 810 Nd an equal opportunity institution gDRADOCK 05000186 PDR

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J'. Miller September 23, 1981 were found which indicate that scue spallation from the surface may have occurred due to radiation-damage, and we have therefore decided to in-stall our spare-reflector now.

We will inform you how the work progresses and will provide addi-tional'information in our next Annual Report.

Sincerely, J. C. McKibben Reactor Manager

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lg/g, Endorsement: Reviewed and Approved bA s  %

Don M. Alger Acting Director cc: 1) Mr. Ken Ridgeway NRC Region III Inspector

2) Mr. John Tolan Radiation Safety Officer

3) Dr. Tom Collins Assoc. Vice President for .

Academic Affairs  !

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