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Polarisation et mesures de section efficace dans la réaction 9Be(3He, p)11B

Publication: Canadian Journal of Physics
December 1983

Abstract

New measurements of the differential cross section have been carried out in the reaction 9Be(3He, p)11B between 13.0- and 14.2-MeV incident energy. In order to compute the effective analyzing powers of polarimeters used to measure proton polarization in the same reaction, a precise knowledge of angular variations is necessary. The achieved accuracy allows a correct calculation of the false asymmetry caused by nonuniform illumination of the analyser from cross section variations.

Résumé

De nouvelles mesures de la section efficace différentielle de la réaction 9Be(He, p)11B ont été effectuées entre 13,0 et 14,2 MeV. La connaissance précise des variations angulaires est nécessaire au calcul des pouvoirs d'analyse effectifs des polarimètres employés lors des mesures de la polarisation des protons dans la même réaction. La précision obtenue permet une évaluation correcte de la fausse asymétrie causée par l'illumination nonuniforme de l'analyseur due aux variations de section efficace.

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cover image Canadian Journal of Physics
Canadian Journal of Physics
Volume 61Number 12December 1983
Pages: 1609 - 1612

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Version of record online: 12 Février 2011

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1. The new laval facility for polarization measurements

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