Production of a short-bunch polarized positron beam and design of a positron polarimeter

M. Fukuda, A. Ohashi, T. Hirose, M. Washio, I. Yamazaki, Y. Kurihara, M. Nomura, T. Okugi, T. Omori, J. Urakawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have been pursuing a basic study of a polarized positron source for a next generation linear collider, JLC based on two fundamental processes, i.e. inverse Compton scattering of circularly polarized laser-photons and pair-creation of a polarized y-ray. Polarized y-rays were produced at collisions of circularly polarized laser-beams with a wave length of 532nm provided from a Nd: YAG with counterpropagating electron beams of 1.28 GeV. Since a time-duration of produced γ -rays is extremely short, i.e. 30 ps, we have developed a transmission method in which a total flux of γ-rays passing through magnetized iron is measured resulting in asymmetry determination. We will report technical details of a positron polarimetry, which will be soon employed to substantiate our proposed view concerning a JLC polarized positron source.

Original languageEnglish
Title of host publicationJoint 28th ICFA Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics
EditorsPisin Chen, Kevin Reil
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages95-102
Number of pages8
ISBN (Electronic)9812560696, 9789812560698
DOIs
Publication statusPublished - 2004
EventJoint 28th International Committee for Future Accelerators Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics - Hiroshima, Japan
Duration: 2003 Jan 72003 Jan 11

Publication series

NameJoint 28th ICFA Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics

Other

OtherJoint 28th International Committee for Future Accelerators Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics
Country/TerritoryJapan
CityHiroshima
Period03/1/703/1/11

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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