Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9845273 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 14 Pages |
Abstract
Various methods of obtaining longitudinally polarized positrons for future linear colliders are reviewed. Special attention is paid to the schemes using circularly polarized high-energy photons for positron production. Most effectively, such photons are obtained from electrons passing through a helical undulator or colliding with a circularly polarized laser wave. Spectrum and polarization of radiation emitted during helical motion of electrons are considered in detail. A new simple presentation of known formulas is used to account for the influence of the wave intensity, the electron-beam angular divergence, the collimation of radiation, and the lateral and temporal profiles of the laser bunch on the radiation properties.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
V. Strakhovenko, X. Artru, R. Chehab, M. Chevallier,