POSIPOL: From polarized and unpolarized photons to positrons

Chehab, R. (2011) POSIPOL: From polarized and unpolarized photons to positrons. Il nuovo cimento C, 34 (4). pp. 9-17. ISSN 1826-9885

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POSIPOL represents a series of workshops dedicated, mainly, to polarized positrons for linear colliders using circularly polarized photons. Two methods were considered: the Compton backscattering of circularly polarized laser photons on electron beams and radiation from high-energy electrons in a helical undulator. The items have been progressively extended to other polarized beams and also to unpolarized positron beams generated by photons emitted by channeled electrons in oriented crystals. After a short historical survey, this article will emphasize on the last scientific and technical developments associated to the positron sources concerning the target resistance to high incident powers, the capture with magnetic lenses, the polarimetry, the emittance preservation, . . . . A description of the main issues and some preliminary conclusions will also be given.

Item Type: Article
Uncontrolled Keywords: Particle sources and targets ; Polarized beams ; Particle beam focusing and bending magnets, wiggler magnets, and quadrupoles ; Channeling phenomena (blocking, energy loss, etc.)
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 07 Apr 2020 15:44
Last Modified: 07 Apr 2020 15:44
URI: http://eprints.bice.rm.cnr.it/id/eprint/17298

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