Continuous tritium, carbon-14, iodine-129, and krypton-85 monitor for nuclear facility off-gas
This report documents the development, evaluation, and demonstration of a continuous /sup 3/H, /sup 14/C, /sup 129/I, and /sup 85/Kr monitor that uses selective permeation to separate each isotope on-line before radiometric detection. The kinetic expressions for the conversion of tritium forms to HTO, carbon-14 forms to /sup 14/CO/sub 2/, and iodine-129 forms of CH/sub 3/ /sup 129/I are presented. The permeabilities solubilities and diffusivities of HTO, CH/sub 3/I, I/sub 2/, and Kr in the polymeric membranes employed are presented as well as the mathematical expressions to derive separation factors, response times, and memory effects from these quantities. Additionally, comparative response curves for the selected detectors and results of an in-plant demonstration of the integrated monitor are presented.
- Research Organization:
- Exxon Nuclear Idaho Co., Inc., Idaho Falls (USA)
- OSTI ID:
- 5365576
- Report Number(s):
- ENICO-1092; ON: DE82002075
- Country of Publication:
- United States
- Language:
- English
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400103 -- Radiometric & Radiochemical Procedures-- (-1987)
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
DIFFUSION
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FUEL REPROCESSING PLANTS
HALOGENATED ALIPHATIC HYDROCARBONS
HOURS LIVING RADIOISOTOPES
HYDROGEN ISOTOPES
IDAHO CHEMICAL PROCESSING PLANT
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINATED ALIPHATIC HYDROCARBONS
IODINE 129
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON 85
KRYPTON ISOTOPES
LIGHT NUCLEI
MEMBRANES
METHYL IODIDE
MONITORING
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEI
ODD-EVEN NUCLEI
OFF-GAS SYSTEMS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
PERMEABILITY
POLYMERS
RADIATION MONITORING
RADIOISOTOPES
SOLUBILITY
TRITIUM
US AEC
US DOE
US ERDA
US ORGANIZATIONS
YEARS LIVING RADIOISOTOPES