Improved crystal method for photon beam linear polarization measurement athigh energies

Authors
Apyan, AB Avakian, RO Darbinian, SM Ispirian, KA Taroian, SP Mikkelsen, U Uggerhoj, E
Citation
Ab. Apyan et al., Improved crystal method for photon beam linear polarization measurement athigh energies, NUCL INST B, 173(1-2), 2001, pp. 149-153
Citations number
14
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
173
Issue
1-2
Year of publication
2001
Pages
149 - 153
Database
ISI
SICI code
0168-583X(200101)173:1-2<149:ICMFPB>2.0.ZU;2-8
Abstract
A method for photon linear polarization determination based on the measurem ent of the asymmetry of pairs produced by polarized photons in single cryst als within the optimal intervals of pair particle energies is proposed. In difference to the well-known methods the asymmetry in this case is essentia lly larger. The optimal orientation of crystal is found, which provides the maximal values for analyzing power and figure of merit as well as minimal measurement time. (C) 2001 Elsevier Science B.V. All rights reserved.