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Production of high-purity isotopes by electromagnetic separation; Production electromagnetique d'isotope tres purs

Abstract

Improvement in isotopic purity of nuclides prepared by electromagnetic separation is searched into the principle of cascades of monochromators. The principal drawback of which is to allow the separation of only one isotope at a time. The electromagnetic separator of Saclay is equipped with an electrostatic post-analyzer, which is described. Significant results are obtained, concerning isotopic enhancements of uranium-235 and mercury-204. A schema of isotopic contagion is then proposed, the basis of it is the scattering of the primary ions in the residual atmosphere of the separator chamber. The most frequent type of collisions being accompanied by neutralisation of the ions, the schema explains the efficiency of the second stage. As a matter of conclusion, some particularities concerning the routine work at a high enhancement, small output machine, are given. (author) [French] L'accroissement de la purete isotopique des especes nucleaires preparees par separation electromagnetique est recherche dans l'emploi du principe des cascades de monochromateurs, moyennant la servitude de ne collecter qu'un isotope a la fois. Le separateur electromagnetique de Saclay est equipe dans ce but d'un post-analyseur electrostatique, qui est decrit. Des resultats significatifs sont donnes, portant sur les enrichissements obtenus dans les separations d'uranium-235 et de mercure-204. Un schema  More>>
Authors:
Cassignol, Ch [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1958
Product Type:
Technical Report
Report Number:
CEA-R-867
Resource Relation:
Other Information: 1 refs
Subject:
07 ISOTOPES AND RADIATION SOURCES; ALPHA SPECTROMETERS; COMPARATIVE EVALUATIONS; EFFICIENCY; ELECTROMAGNETIC ISOTOPE SEPARATION; ELECTRON LOSS; INELASTIC SCATTERING; ION BEAMS; ISOTOPE RATIO; MAGNETIC FIELDS; MOLYBDENUM ISOTOPES; MONOCHROMATORS; TOTAL CROSS SECTIONS; URANIUM 235; URANIUM 238
OSTI ID:
20889994
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R0867054613
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
12 pages
Announcement Date:
Aug 13, 2007

Citation Formats

Cassignol, Ch. Production of high-purity isotopes by electromagnetic separation; Production electromagnetique d'isotope tres purs. France: N. p., 1958. Web.
Cassignol, Ch. Production of high-purity isotopes by electromagnetic separation; Production electromagnetique d'isotope tres purs. France.
Cassignol, Ch. 1958. "Production of high-purity isotopes by electromagnetic separation; Production electromagnetique d'isotope tres purs." France.
@misc{etde_20889994,
title = {Production of high-purity isotopes by electromagnetic separation; Production electromagnetique d'isotope tres purs}
author = {Cassignol, Ch}
abstractNote = {Improvement in isotopic purity of nuclides prepared by electromagnetic separation is searched into the principle of cascades of monochromators. The principal drawback of which is to allow the separation of only one isotope at a time. The electromagnetic separator of Saclay is equipped with an electrostatic post-analyzer, which is described. Significant results are obtained, concerning isotopic enhancements of uranium-235 and mercury-204. A schema of isotopic contagion is then proposed, the basis of it is the scattering of the primary ions in the residual atmosphere of the separator chamber. The most frequent type of collisions being accompanied by neutralisation of the ions, the schema explains the efficiency of the second stage. As a matter of conclusion, some particularities concerning the routine work at a high enhancement, small output machine, are given. (author) [French] L'accroissement de la purete isotopique des especes nucleaires preparees par separation electromagnetique est recherche dans l'emploi du principe des cascades de monochromateurs, moyennant la servitude de ne collecter qu'un isotope a la fois. Le separateur electromagnetique de Saclay est equipe dans ce but d'un post-analyseur electrostatique, qui est decrit. Des resultats significatifs sont donnes, portant sur les enrichissements obtenus dans les separations d'uranium-235 et de mercure-204. Un schema de contagion isotopique est propose. Il est fonde sur la diffusion a petit angle accompagnant la neutralisation des faisceaux primaires par collision avec le gaz residuel. Ce schema permet d'expliquer l'efficacite de l'etage electrostatique. En matiere de conclusion, la methode d'exploitation d'une machine a faible debit et a haut enrichissement est donnee. (auteur)}
place = {France}
year = {1958}
month = {Jul}
}