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Fernandez, S.J.; Girton, R.C.
Idaho National Engineering Lab., Idaho Falls (USA)1978
Idaho National Engineering Lab., Idaho Falls (USA)1978
AbstractAbstract
[en] The feasibility of continuously monitoring gaseous technetium-99 and selenium-79 emitted from nuclear fuel reprocessing plants was examined. A continuous monitor for technetium-99 was designed based upon on-line chemical separation using differential volatility from acid media. The investigated detectors for selenium-79 were not sufficiently sensitive so an alternative time-integrated sampling technique using silver zeolite as a collection media was developed. The chemical separation procedure was compatible with liquid scintillation counting and allowed the simultaneous determination of selenium, technetium, and iodine. Demonstration of the time-integrated sampling technique at the Idaho Chemical Processing Plant (ICPP) produced satisfactory results
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Nov 1978; 33 p; Available from NTIS., PC A03/MF A01
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Report
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AIR, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, COUNTING TECHNIQUES, EVEN-ODD NUCLEI, FLUIDS, GASES, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MEASURING INSTRUMENTS, MINUTES LIVING RADIOISOTOPES, MONITORING, NUCLEAR FACILITIES, NUCLEI, ODD-EVEN NUCLEI, ON-LINE SYSTEMS, RADIATION DETECTORS, RADIOACTIVE MATERIALS, RADIOISOTOPES, SCINTILLATION COUNTERS, SELENIUM ISOTOPES, TECHNETIUM ISOTOPES, WASTES, YEARS LIVING RADIOISOTOPES
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