| Numéro |
J. Phys. III France
Volume 2, Numéro 6, June 1992
|
|
|---|---|---|
| Page(s) | 1015 - 1027 | |
| DOI | https://doi.org/10.1051/jp3:1992175 | |
J. Phys. III France 2 (1992) 1015-1027
Système de mesure de l'énergie d'électrons rétrodiffusés en fonction de l'angle d'émission
Pascal Gérard, Jean-Louis Balladore, Henri Pinna, Abdelghafour Ouabbou and Jean-Paul MartinezCentre d'Elaboration des Matériaux et d'Etudes Structurales, Laboratoire Propre du CNRS lié par convention à l'Université Paul Sabatier, BP 4347, 31055 Toulouse Cedex, France
(Reçu le 16 décembre 1991, accepté le 28 février 1992)
Abstract
We present in this paper an experimental device for determining for an electron beam incident normal to a target, the angular
and energetic backscattered electron distribution as a function of the emission angle. We use as detector a semiconductor
diode cooled to a temperature of 100 K by liquid nitrogen. This detector can be moved around the target. The first results
show that this device enables us to obtain the energy spectrum of electrons backscattered at different angles to the incident
beam axis. From these measurements we have calculated the total angular and energy distributions ; the result is in good agreement
with those obtained by other authors.
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