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Experimental determination of the back scattering factor in X-ray microanalysis; Determination experimentale du facteur de retro-diffusion en microanalyse par emission X

Abstract

This paper describes the first experimental method which has fixed the relative value of the X-ray loss by electron back scattering. Measurements have been performed, using gold, copper and aluminium specimens and accelerating voltages from 10 to 30 kV. Our experimental results, although higher than back scattering factor values calculated before, agree fairly well with those obtained by a Monte-Carlo calculation, using recent experimental measurement on thin films. The higher values obtained here, show that the compensation between deceleration and back scattering effects is better: the discrepancy from a linearity law is then probably weaker than it has been generally shown previously. (author) [French] Le memoire decrit la premiere methode experimentale ayant permis de determiner l'importance relative de la fraction du rayonnement X perdue par retrodiffusion des electrons. Les mesures ont porte sur l'or, le cuivre et l'aluminium entre 10 et 30 kV. Les resultats, sensiblement superieurs aux estimations anterieures, sont en bon accord avec ceux deduits, par la methode de Monte-Carlo, des recentes mesures sur les lames minces. Les valeurs plus elevees du facteur de retrodiffusion mises ainsi en evidence, conduisent a une meilleure compensation entre les effets de ralentissement et de retrodiffusion: l'ecart a une simple loi de  More>>
Authors:
Derian, J C [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jun 01, 1966
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-3052
Resource Relation:
Other Information: TH: These ES-sciences appliquees; 52 refs; PBD: Jun 1966
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALUMINIUM; ATOMIC NUMBER; COPPER; CORRECTIONS; ERRORS; GOLD; ION SCATTERING ANALYSIS; MONTE CARLO METHOD; SCATTERING; X RADIATION
OSTI ID:
20621980
Research Organizations:
Commissariat a l'Energie Atomique, Saclay (France); Faculte des Sciences de l'Universite de Paris, 75 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR05R3052065631
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
[78] pages
Announcement Date:

Citation Formats

Derian, J C. Experimental determination of the back scattering factor in X-ray microanalysis; Determination experimentale du facteur de retro-diffusion en microanalyse par emission X. France: N. p., 1966. Web.
Derian, J C. Experimental determination of the back scattering factor in X-ray microanalysis; Determination experimentale du facteur de retro-diffusion en microanalyse par emission X. France.
Derian, J C. 1966. "Experimental determination of the back scattering factor in X-ray microanalysis; Determination experimentale du facteur de retro-diffusion en microanalyse par emission X." France.
@misc{etde_20621980,
title = {Experimental determination of the back scattering factor in X-ray microanalysis; Determination experimentale du facteur de retro-diffusion en microanalyse par emission X}
author = {Derian, J C}
abstractNote = {This paper describes the first experimental method which has fixed the relative value of the X-ray loss by electron back scattering. Measurements have been performed, using gold, copper and aluminium specimens and accelerating voltages from 10 to 30 kV. Our experimental results, although higher than back scattering factor values calculated before, agree fairly well with those obtained by a Monte-Carlo calculation, using recent experimental measurement on thin films. The higher values obtained here, show that the compensation between deceleration and back scattering effects is better: the discrepancy from a linearity law is then probably weaker than it has been generally shown previously. (author) [French] Le memoire decrit la premiere methode experimentale ayant permis de determiner l'importance relative de la fraction du rayonnement X perdue par retrodiffusion des electrons. Les mesures ont porte sur l'or, le cuivre et l'aluminium entre 10 et 30 kV. Les resultats, sensiblement superieurs aux estimations anterieures, sont en bon accord avec ceux deduits, par la methode de Monte-Carlo, des recentes mesures sur les lames minces. Les valeurs plus elevees du facteur de retrodiffusion mises ainsi en evidence, conduisent a une meilleure compensation entre les effets de ralentissement et de retrodiffusion: l'ecart a une simple loi de proportionnalite par effet de difference de nombre atomique est ainsi probablement plus faible qu'on ne le pensait generalement jusqu'ici. (auteur)}
place = {France}
year = {1966}
month = {Jun}
}