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A radio-crystallographic apparatus for the examination of irradiated materials; Appareil de radiocristallographie pour examens de materiaux irradies

Abstract

Description of a radio-crystallographic apparatus designed for the examination of irradiated metals. - The double diffraction method was used: a monochromator is placed in the beam of X-rays diffracted by the sample, thus enabling lead shielding to be interposed between the sample and the counter. In this way a very large proportion of the radiation due to the activity of the sample is eliminated. By this method substances with activities of the order of several tens of curies may be examined, and the relative precision obtained in measurements of parameters with this apparatus is equal to 10{sup -4} in the case of good crystals. (author) [French] Description d'un appareil de radiocristallographie destine a l'examen de metaux irradies. - Nous avons utilise la methode de double diffraction: un monochromateur est place dans le faisceau de rayons X diffracte par l'echantillon, ce qui permet d'interposer une protection de plomb entre l'echantillon et le compteur. On elimine ainsi dans une tres grande proportion le rayonnement du a la radioactivite de l'echantillon. On peut ainsi examiner des substances d'une activite de l'ordre de quelques dizaines de curies et la precision relative obtenue pour les mesures de parametres avec cet appareil est egale a 10{sup  More>>
Authors:
Bloch, J [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1960
Product Type:
Technical Report
Report Number:
CEA-R-1449
Resource Relation:
Other Information: 9 refs
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; BEAM OPTICS; BEAM SHAPING; BRAGG REFLECTION; COLLIMATORS; CRYSTALLOGRAPHY; DIFFRACTION METHODS; FOCUSING; GEIGER-MUELLER COUNTERS; LEAD; METALS; MONOCHROMATORS; POST-IRRADIATION EXAMINATION; RECORDING SYSTEMS; SAMPLE HOLDERS; SHIELDING; X-RAY DIFFRACTION
OSTI ID:
20951798
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1449102024
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
24 pages
Announcement Date:
Dec 21, 2007

Citation Formats

Bloch, J. A radio-crystallographic apparatus for the examination of irradiated materials; Appareil de radiocristallographie pour examens de materiaux irradies. France: N. p., 1960. Web.
Bloch, J. A radio-crystallographic apparatus for the examination of irradiated materials; Appareil de radiocristallographie pour examens de materiaux irradies. France.
Bloch, J. 1960. "A radio-crystallographic apparatus for the examination of irradiated materials; Appareil de radiocristallographie pour examens de materiaux irradies." France.
@misc{etde_20951798,
title = {A radio-crystallographic apparatus for the examination of irradiated materials; Appareil de radiocristallographie pour examens de materiaux irradies}
author = {Bloch, J}
abstractNote = {Description of a radio-crystallographic apparatus designed for the examination of irradiated metals. - The double diffraction method was used: a monochromator is placed in the beam of X-rays diffracted by the sample, thus enabling lead shielding to be interposed between the sample and the counter. In this way a very large proportion of the radiation due to the activity of the sample is eliminated. By this method substances with activities of the order of several tens of curies may be examined, and the relative precision obtained in measurements of parameters with this apparatus is equal to 10{sup -4} in the case of good crystals. (author) [French] Description d'un appareil de radiocristallographie destine a l'examen de metaux irradies. - Nous avons utilise la methode de double diffraction: un monochromateur est place dans le faisceau de rayons X diffracte par l'echantillon, ce qui permet d'interposer une protection de plomb entre l'echantillon et le compteur. On elimine ainsi dans une tres grande proportion le rayonnement du a la radioactivite de l'echantillon. On peut ainsi examiner des substances d'une activite de l'ordre de quelques dizaines de curies et la precision relative obtenue pour les mesures de parametres avec cet appareil est egale a 10{sup -4} dans le cas de bons cristaux. (auteur)}
place = {France}
year = {1960}
month = {Jul}
}