ML20206K750
| ML20206K750 | |
| Person / Time | |
|---|---|
| Site: | University of Missouri-Columbia |
| Issue date: | 05/04/1999 |
| From: | MISSOURI, UNIV. OF, ROLLA, MO |
| To: | |
| Shared Package | |
| ML20206K747 | List: |
| References | |
| NUDOCS 9905130273 | |
| Download: ML20206K750 (2) | |
Text
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TECHNICAL SPECIFICATION UNIVERSITY OF MISSOURI RES'EARCH REACTOR FACILITY -
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Number 3.6 '
Page 2 of 5-Date
SUBJECT:
Experiments (continued) airborne 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 ]
with the reactor operating. All other experiments in the center test hole
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shall be removed or installed only with the reactor shut down. Secured
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experiments shall be rigidly held in place during reactor operation.
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f.
Expenments shall be designed and operated so that identifiable accide its 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.
Experiment 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 irradiated experiment from exceeding the saturation temperature of the cooling medium.
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9905130273 990504
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TECHNICAL SPECIFICATION UNIVERSITY OF MISSOURI'-
RESEARCH REACTOR FACILITY Number 3.6 Page-4 of 5
Date
SUBJECT:
Experiments (continued)
Fueled experiments containing inventories of Iodine 131 through 135 grater than o.
1.5 Curies or Strontium 90 greater than 5 millicuries shall be vented to the exhaust stack system through HEPA and charcoal filters which are continuously monitored for an increase in radiation levels.
Bases Specification 3.6.a restricts the generation of hazardous materials to levels that a.
can be handled safely and easily. Analysis of fueled experiments centaining 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 annulus surrounding the center test hole by restricting materials which could generate or accumulate gases or vapors.
The limitation on experiment materials imposed by speci6 cation 3.5.c assures that c.
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.
Specification 3.6.e is intended to limit the experiments that can be moved in ]
e.
the center test hole while the reactor is operating, to those that will not
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Introduce reactivity transients more severe than one that can he controlled - ]
without initiating safety system action (Ref. Add. 5 to HSR).
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