Document Details

Vapor Containment in the Oak Ridge Research Reactor
Subject Terms:
containment, iodine, ORNL; exhaust, uranium-alloy; gaseous fission products; scrubber, meteorology; vapor, research reactor, ORR
Document Location:
DOE INFORMATION CENTER 1 Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email:
Document Categories:
Health, Safety and Environment\Environmental Effects; Reactors\Research and Test Reactors and Small Experimental Piles
Document Type:
Publication Date:
1962 Aug 23
Declassification Status:
Never classified
Document Pages:
Accession Number:
Document Number(s):
Originating Research Org.:
Atomic Energy Commission
OpenNet Entry Date:
1998 Jun 16
This document concerns the vapor containment in the Oak Ridge Research Reactor (ORR). One of the unique features of this reactor is the type of containment which has been provided in order to prevent release to the atmosphere of gaseous fission products which may escape as a result of an accident to the reactor. The ORR building is not hermetically sealed for the purpose of retaining the escaped fission products. It is a partially leak-tight building of conventional mill-type construction, and containment is attained by means of a ventilation system which is capable of exhausting air from the building at a rate sufficient to insure that all leakage of air at ground level is into the building. The exhaust air is treated by scrubbing and filtration and is discharged from a large stack at a height and velocity sufficient to guarantee that meteorological dispersion will reduce the resulting concentration of radioactive material to an acceptable level. It is believed that through the use of conservative approximations it is possible to demonstrate that controlled containment is a valuable technique for many applications. An appendix concerning iodine-dose calculation and figures are included.

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