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Proceedings Paper

High intensity positron sources using channeling in crystals
Author(s): X. Artru; K. Beloborodov; R. Chehab; M. Chevallier; V. Shary; V. Strakhovenko
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Paper Abstract

An alternative way to the conventional positron sources - those which use high intensity electron beams impinging on thick amorphous targets - is presented here. It makes use of a compound target with an aligned crystal as a radiator, where the incident electron beam radiates a large number of photons (as channeling radiation or coherent bremsstrahlung) and an amorphous converter where these photons materialize in e+ e- pairs. This new kind of target has been studied experimentally at CERN and the main results providing an accurate description of this positron source are given here. The ability of such a source to work in a linear collider scheme depending on its radiation resistance, the dedicated test carried out at SLAC on a W crystal are also described and the results are reported.

Paper Details

Date Published: 7 December 2006
PDF: 6 pages
Proc. SPIE 5974, International Conference on Charged and Neutral Particles Channeling Phenomena, 59740E (7 December 2006); doi: 10.1117/12.639986
Show Author Affiliations
X. Artru, Univ. Claude Bernard (France)
K. Beloborodov, Budker Institute of Nuclear Physics (Russia)
R. Chehab, Univ. Claude Bernard (France)
IN2P3-CNRS, Univ. Paris-Sud (France)
M. Chevallier, Univ. Claude Bernard (France)
V. Shary, Budker Institute of Nuclear Physics (Russia)
V. Strakhovenko, Budker Institute of Nuclear Physics (Russia)

Published in SPIE Proceedings Vol. 5974:
International Conference on Charged and Neutral Particles Channeling Phenomena
Sultan B. Dabagov, Editor(s)

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