Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation

T. Omori; M. Fukuda; T. Hirose; Y. Kurihara; R. Kuroda; M. Nomura; A. Ohashi; T. Okugi; K. Sakaue; T. Saito; J. Urakawa; M. Washio; I. Yamazaki

doi:10.1103/PhysRevLett.96.114801

Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation

T. Omori, M. Fukuda, T. Hirose, Y. Kurihara, R. Kuroda, M. Nomura, A. Ohashi, T. Okugi, K. Sakaue, T. Saito, J. Urakawa, M. Washio, I. Yamazaki

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

80 Citations (Scopus)

Abstract

We have demonstrated for the first time the production of highly polarized short-pulse positrons with a finite energy spread in accordance with a new scheme that consists of two-quantum processes, such as inverse Compton scattering and electron-positron pair creation. Using a circularly polarized laser beam of 532 nm scattered off a high-quality, 1.28 GeV electron beam, we have obtained polarized positrons with an intensity of 2×104 e+/bunch. The magnitude of positron polarization has been determined to be 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.

Original language	English
Article number	114801
Journal	Physical Review Letters
Volume	96
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.96.114801
Publication status	Published - 2006

ASJC Scopus subject areas

Physics and Astronomy(all)

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Omori, T., Fukuda, M., Hirose, T., Kurihara, Y., Kuroda, R., Nomura, M., Ohashi, A., Okugi, T., Sakaue, K., Saito, T., Urakawa, J., Washio, M., & Yamazaki, I. (2006). Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation. Physical Review Letters, 96(11), [114801]. https://doi.org/10.1103/PhysRevLett.96.114801

Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation. / Omori, T.; Fukuda, M.; Hirose, T.; Kurihara, Y.; Kuroda, R.; Nomura, M.; Ohashi, A.; Okugi, T.; Sakaue, K.; Saito, T.; Urakawa, J.; Washio, M.; Yamazaki, I.

In: Physical Review Letters, Vol. 96, No. 11, 114801, 2006.

Research output: Contribution to journal › Article › peer-review

Omori, T, Fukuda, M, Hirose, T, Kurihara, Y, Kuroda, R, Nomura, M, Ohashi, A, Okugi, T, Sakaue, K, Saito, T, Urakawa, J, Washio, M & Yamazaki, I 2006, 'Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation', Physical Review Letters, vol. 96, no. 11, 114801. https://doi.org/10.1103/PhysRevLett.96.114801

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AU - Kuroda, R.

AU - Nomura, M.

AU - Ohashi, A.

AU - Okugi, T.

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AU - Saito, T.

AU - Urakawa, J.

AU - Washio, M.

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