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AbstractAbstract
[en] Techniques for sampling and measuring krypton-85 have been developed which allowed to determine its geographical distribution. From its use as a tracer, an evaluation of the air masses which cross over the subtropical fronts has been derived. Besides, the stratospheric character of air pollution by krypton-85 at the level of the antarctic soil has been shown out. Levels of krypton-85 seem to point out to an underestimation of the assessment of nuclear explosion fission energies as adopted by the United Nations Scientific committee on the effects of atomic radiation and emphasize the need to set limits as soon as possible to the amounts of krypton-85 released to the atmosphere by fuel-reprocessing plants. (author)
[fr]
La mise au point de techniques de prelevement et de mesure du krypton-85 atmospherique a permis de determiner sa repartition geographique. De son utilisation comme traceur on deduit une evaluation des masses d'air qui traversent les fronts subtropicaux. Par ailleurs, le caractere stratospherique de la pollution de l'air par le krypton-85 au niveau du sol antarctique est mis en evidence. Le bilan du krypton-85 semble reveler une sous-estimation du bilan des energies de fission des explosions adopte par le Comite scientifique des Nations Unies et souligne la necessite de limiter des que possible les quantites de krypton-85 rejetees dans l'atmosphere par les usines de traitement de combustibles irradies. (auteur)Original Title
Distribution, transfert atmospherique et bilan du krypton-85
Primary Subject
Secondary Subject
Source
Jun 1968; [180 p.]; 58 refs.; These docteur es-sciences physiques
Record Type
Report
Literature Type
Thesis/Dissertation
Report Number
Country of publication
ARGON 36, ATMOSPHERIC CHEMISTRY, ATMOSPHERIC CIRCULATION, ATMOSPHERIC EXPLOSIONS, DOSE RATES, FALLOUT, FUEL REPROCESSING PLANTS, GEOGRAPHICAL VARIATIONS, KRYPTON 85, MASS SPECTROSCOPY, PROBABILISTIC ESTIMATION, PROPORTIONAL COUNTERS, RADIOACTIVE AEROSOLS, RADIOACTIVE CLOUDS, RADIOACTIVE WASTE DISPOSAL, SAMPLING, TROPOSPHERE
AEROSOLS, ARGON ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CALCULATION METHODS, CHEMISTRY, CLOUDS, COLLOIDS, DISPERSIONS, EARTH ATMOSPHERE, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, EXPLOSIONS, HOURS LIVING RADIOISOTOPES, INTERMEDIATE MASS NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, KRYPTON ISOTOPES, LIGHT NUCLEI, MANAGEMENT, MEASURING INSTRUMENTS, MICROSECONDS LIVING RADIOISOTOPES, NUCLEAR FACILITIES, NUCLEI, RADIATION DETECTORS, RADIOACTIVE WASTE MANAGEMENT, RADIOISOTOPES, SOLS, SPECTROSCOPY, STABLE ISOTOPES, VARIATIONS, WASTE DISPOSAL, WASTE MANAGEMENT, YEARS LIVING RADIOISOTOPES
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