Document Details

Fission Product Discharge Into the ART Off-Gas Stack
Subject Terms:
Xe, Kr, off-gas system; charcoal adsorber bed; discharge, reactor; fission product, ORNL; isotopes, ART stack
Burnett, T.H.J. (ORNL, Carbide and Carbon Chemicals Co., Oak Ridge TN); Burnett, T.H.J. (ORNL, Carbide and Carbon Chemicals Co., Oak Ridge TN)
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:
Specific Material\Fission Products; Specific Material\Fission Products
Document Type:
Publication Date:
1955 Aug 17
Declassification Date:
1970 May 25
Declassification Status:
Document Pages:
Accession Number:
Document Number(s):
CF-55-8-93; Copy 6, Series A; Copy6SeriesA
Originating Research Org.:
Carbide and Carbon Chemicals Corporation
OpenNet Entry Date:
1998 Jun 16
The included tabulation summarizes the current estimate of the quantity of several of the Xe and Kr fission product isotopes which would be discharged to the ART stack. The isotopes not reported are obviously of less significance. The data was reviewed at this time as an evaluation of the performance of the off-gas system which has recently been specified in some detail. Since the highest discharge rate of Kr-88 is expected to be less than 1.6 x 10(-4) vs 1.0 x 10(-3) specified in the hazard report (ORNL-1835), normal discharge of activity should well be below the maximum permissible concentration for continuous exposure. The reactor off-gas charcoal adsorber is presently designed to assure a minimum holdup time of 48 hr for Kr, 605 hr for Xe, and with a gas flow in the off-gas system of 5000 liters/day. If full credit is taken for the safety factor, the design holdup times in the charcoal would be 114 hr for Kr, 1440 hr for Xe.

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