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Title: ORGANIC MODERATED REACTOR CRITICAL EXPERIMENT HAZARDS SUMMARY

Abstract

A series of experiments was planned utilizing a critical assembly mock- up with slightiy enriched fuel in a heterogeneous, organic-moderated lattice. The fuel elements are uranium metal fabricated into flat plate, box-type fuel elements and other elements of special design. The moderator and reflector are Santowax-R. The critical assembly vessel is designed of mild steel, about 6 ft in diameter and 81/2 ft high. The moderator is maintained in a liquid state by means of electrical heating. The temperature range for the experiments is 325 to 600 deg F in an unpressurized system. Boron carbide-filled shim and safety rods, actuated by cables, are used for control. The laboratory consists of a concrete- shielded high-bay critical assembly cell, an adjoining control room, and supporting facilities. The laboratory design includes provisions for filtering the critical assembly room effluent air as required, and for holdup of any liquid radioactive waste generated. Various operating and equipment failures are postulated and analyzed, including the case of complete safety system failure. It was concluded that the maximum credible accident could not constitute a significant hazard to the public. (auth)

Authors:
Publication Date:
Research Org.:
Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
OSTI Identifier:
4725404
Report Number(s):
NAA-SR-3220
NSA Number:
NSA-17-019673
DOE Contract Number:  
AT(11-1)-GEN-8
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
REACTOR TECHNOLOGY; ACCIDENTS; AIR; BORON CARBIDES; CLEANING; CONCRETES; CONTROL ELEMENTS; CRITICAL ASSEMBLIES; CRITICALITY; FAILURES; FILTERS; FUEL ELEMENTS; HEATING; HIGH TEMPERATURE; LABORATORY EQUIPMENT; MEASURED VALUES; METALS; MIXING; OPERATION; ORGANIC MODERATOR; PLANNING; PLATES; POLYPHENYLS; REACTOR SAFETY; REACTORS; REFLECTORS; SHIELDING; SHIELDING MATERIALS; STEELS; STORAGE; URANIUM; VESSELS; WASTE DISPOSAL

Citation Formats

Zwetzig, G B. ORGANIC MODERATED REACTOR CRITICAL EXPERIMENT HAZARDS SUMMARY. United States: N. p., 1958. Web.
Zwetzig, G B. ORGANIC MODERATED REACTOR CRITICAL EXPERIMENT HAZARDS SUMMARY. United States.
Zwetzig, G B. Mon . "ORGANIC MODERATED REACTOR CRITICAL EXPERIMENT HAZARDS SUMMARY". United States.
@article{osti_4725404,
title = {ORGANIC MODERATED REACTOR CRITICAL EXPERIMENT HAZARDS SUMMARY},
author = {Zwetzig, G B},
abstractNote = {A series of experiments was planned utilizing a critical assembly mock- up with slightiy enriched fuel in a heterogeneous, organic-moderated lattice. The fuel elements are uranium metal fabricated into flat plate, box-type fuel elements and other elements of special design. The moderator and reflector are Santowax-R. The critical assembly vessel is designed of mild steel, about 6 ft in diameter and 81/2 ft high. The moderator is maintained in a liquid state by means of electrical heating. The temperature range for the experiments is 325 to 600 deg F in an unpressurized system. Boron carbide-filled shim and safety rods, actuated by cables, are used for control. The laboratory consists of a concrete- shielded high-bay critical assembly cell, an adjoining control room, and supporting facilities. The laboratory design includes provisions for filtering the critical assembly room effluent air as required, and for holdup of any liquid radioactive waste generated. Various operating and equipment failures are postulated and analyzed, including the case of complete safety system failure. It was concluded that the maximum credible accident could not constitute a significant hazard to the public. (auth)},
doi = {},
url = {https://www.osti.gov/biblio/4725404}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {12}
}

Technical Report:
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