ML20212D444

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Amend 31 to License R-103,authorizing Conduct of Moveable & Unsecured Experiments in Center Test Hole of Reactor
ML20212D444
Person / Time
Site: University of Missouri-Columbia
Issue date: 09/20/1999
From: Marsh L
NRC (Affiliation Not Assigned)
To:
Shared Package
ML20212D442 List:
References
R-103-A-031, NUDOCS 9909230121
Download: ML20212D444 (5)


Text

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Uc uq O" & UNITED STATES l , ,g .g NUCLEAR REGULATORY COMMISSION i

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UNIVERSITY OF MISSOURI- COLUMBIA DOCKET NO. 50-186 AMENDMENT TO AMENDED FACILITY LICENSE Amendment No. 31 License No. R-103

1. The U.S. Nuclear Regulatory Commission (the Commission)'has found that A. The application for an amendment to Amended Facility License No. R-103 filed by the University of Missouri- Columbia (the licensee) on May 4,1999, as supplemented on July 23,1999, conforms to the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the regulations of the Commission as stated in Chapter I of Title 10 of the Code of FederalRegulations (10 CFR);

B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance that (i) the activities authorized by this amendment can be conducted without endangering the health and safety of the public and (ii) such activities will be conducted in complia.nce with the regulations of the Commission; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; E. This amendment is issued in accordance with the regulations of the Commission as I stated in 10 CFR Part 51, and all applicable requirements have been satisfied; and F. Prior notice of this amendment was not required by 10 CFR 2.105 and publication of a notice for this amendment is not required by 10 CFR 2.106.

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2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the enclosure to this lice.nse amendment, and paragraph 3.B. of Amended Facility License No. R-103 is hereby amended to read as follows:

3.B. Technical Specifications l

The Technical Specifications contained in Appendix A, as revised through Amendment No. 31, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications. i

3. This license amendment is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY COMMISSION Ledyard B. Marsh, Chief .

Event Assessment, Generic Communications and Non-Power Reactors Branch l Division of Regulatory improvement Programs Office of Nuclear Reactor Regulation

Enclosure:

Appendix A, Technical Specifications Changes -

4 Date of issuance: SepW 20,1999 I

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l ENCLOSURE TO LICENSE AMENDMENT NO. 31 AMENDED FACILITY LICENSE NO. R-103 l

DOCKET NO 50-18Q i

I Replace the following pages of Appendix A, " Technical Specifications," with the enclosed pages. The revised pages are identified by amendment number and contain verticallines i indicating the areas of change.

f Remove n 1.n31r1 3.6 - 2 3.6 -2 3.6 - 4 3.6 -4 l

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TECHNICAL SPECIFICATION UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY '

Number 3.6 Page 2 of 5 Date September 20,1999 Amendment No. 31 l

SUBJECT:

Exoeriments (continued) airbome concentration of radioactivity averaged over a year will not exceed the limits of Appendix B, Table I of 10 CFR Part 20. Exception: Fueled experiments (See Specification 3.6.a).

d. Explosive materials shall not be irradiated or allowed to generate in any experiment in quantities over 25 milligrams.
e. Only movable experiments in the center test hole shall be removed or installed l with the reactor operating. All other experiments in the center test hole shall be l removed or installed only with the reactor shut down. Secured experiments shall l be rigidly held in place during reactor operation. l
f. Experiments shall be designed and operated so that identifiable accidents such as loss of reactor coolant flow, loss of experiment cooling, etc., will not result in a release of fission products or radioactive materials from the experiment.
g. Experiments shall be designed such that a failure of an experiment will not lead to a direct failure of other experiments, a failure of reactor fuel elements, or to interference with the action of the reactor control elements or other operating components.
h. Cooling shall be provided to prevent the surface temperature of a submerged inadiated experiment from exceeding the saturation temperature of the cooling medium.

TECHNICAL SPECIFICATION UNIVERSITY OF MISSOURI RESEARCH REACTOR FACILITY Number 3.6 Page 4 of 5 Date September 20,1999 Amendment No. 31

SUBJECT:

Exoeriments(continued)

o. Fueled experiments containing inventories oflodine 131 through 135 greater than 1.5 Curies or Strontium 90 greater than 5 millicuries shall be vented to the exhaust stack system through HEPA and charcoal filters which aie continuously monitored for an increase in radiation levels.

Bases

a. Specification 3.6.a restricts the generation of hazardous materials to levels that can be handled safely and easily. Analysis of fueled experiments containing a greater inventory of fission products has not been completed, and therefore their use is not permitted.
b. Specification 3.6.b is intended to reduce the likelihood of accidental voiding in the core or water annulas surrounding the center test hole by restricting materials which could generate or accumulate gases or vapors.
c. The limitation on experiment materials imposed by specification 3.5.c assures that the limits of Appendix B of 10 CFR 20 are not exceeded in the event of an experiment failure.
d. Specification 3.6.d is intended to reduce the likelihood of damage to reactor or pool components resulting from detonation of explosive materials.
c. Specification 3.6.e is intended to limit the experiments that can be moved in the center l test hole while the reactor is operating, to those that will not introduce reactivity l transients more severe than one that can be controlled without initiating safety system j action (Ref. Add. 5 to HSR). l l