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, Kazuyuki Sakaue, T. Saito, J. Urakawa, Masakazu Washio, I. Yamazaki

Research output: Contribution to journalArticle

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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 languageEnglish
Article number114801
JournalPhysical Review Letters
Volume96
Issue number11
DOIs
Publication statusPublished - 2006

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electron-positron pairs
positrons
propagation
photons
polarization
scattering
lasers
polarimeters
laser beams
electron beams
pulses
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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, Kazuyuki; Saito, T.; Urakawa, J.; Washio, Masakazu; Yamazaki, I.

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

Research output: Contribution to journalArticle

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
Omori, T. ; Fukuda, M. ; Hirose, T. ; Kurihara, Y. ; Kuroda, R. ; Nomura, M. ; Ohashi, A. ; Okugi, T. ; Sakaue, Kazuyuki ; Saito, T. ; Urakawa, J. ; Washio, Masakazu ; Yamazaki, I. / Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation. In: Physical Review Letters. 2006 ; Vol. 96, No. 11.
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AU - Omori, T.

AU - Fukuda, M.

AU - Hirose, T.

AU - Kurihara, Y.

AU - Kuroda, R.

AU - Nomura, M.

AU - Ohashi, A.

AU - Okugi, T.

AU - Sakaue, Kazuyuki

AU - Saito, T.

AU - Urakawa, J.

AU - Washio, Masakazu

AU - Yamazaki, I.

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