Polarized positron generation based on laser compton scheme and its polarization measurements

Kazuyuki Sakaue; Taku Saito; Issei Yamazaki; Ryunosuke Kuroda; Masakazu Washio; Tachishige Hirose; Tsunehiko Omori; Toshiyuki Okugi; Yoshimasa Kurihara; Junji Urakawa; Masafumi Fukuda; Masahiro Nomura; Ayumu Ohashi

doi:10.1142/s021797920704232x

Polarized positron generation based on laser compton scheme and its polarization measurements

Kazuyuki Sakaue^*, Taku Saito, Issei Yamazaki, Ryunosuke Kuroda, Masakazu Washio, Tachishige Hirose, Tsunehiko Omori, Toshiyuki Okugi, Yoshimasa Kurihara, Junji Urakawa, Masafumi Fukuda, Masahiro Nomura, Ayumu Ohashi

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

1 被引用数 (Scopus)

抄録

We have proposed a new scheme for polarized positron production, consisting of two quantum processes i.e. inverse Compton scatterings of circularly polarized laser light on high-quality electron beams and successive electron-positron pair creations. Using a circularly polarized laser beam of 532 nm scattered off a high-quality electron beam with the energy of 1.28 GeV, we have demonstrated for the first time productions of highly polarized positrons positrons with an intensity of 2 × 10⁴ e⁺/bunch and an average energy of 36 MeV. Hence an average polarization of positrons was determined as 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.

本文言語	English
ページ（範囲）	519-526
ページ数	8
ジャーナル	International Journal of Modern Physics B
巻	21
号	3-4
DOI	https://doi.org/10.1142/s021797920704232x
出版ステータス	Published - 2007 2 10

ASJC Scopus subject areas

統計物理学および非線形物理学
凝縮系物理学

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10.1142/s021797920704232x

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引用スタイル

Polarized positron generation based on laser compton scheme and its polarization measurements. / Sakaue, Kazuyuki; Saito, Taku; Yamazaki, Issei; Kuroda, Ryunosuke; Washio, Masakazu; Hirose, Tachishige; Omori, Tsunehiko; Okugi, Toshiyuki; Kurihara, Yoshimasa; Urakawa, Junji; Fukuda, Masafumi; Nomura, Masahiro; Ohashi, Ayumu.

In: International Journal of Modern Physics B, Vol. 21, No. 3-4, 10.02.2007, p. 519-526.

研究成果: Article › 査読

Sakaue, Kazuyuki ; Saito, Taku ; Yamazaki, Issei ; Kuroda, Ryunosuke ; Washio, Masakazu ; Hirose, Tachishige ; Omori, Tsunehiko ; Okugi, Toshiyuki ; Kurihara, Yoshimasa ; Urakawa, Junji ; Fukuda, Masafumi ; Nomura, Masahiro ; Ohashi, Ayumu. / Polarized positron generation based on laser compton scheme and its polarization measurements. In: International Journal of Modern Physics B. 2007 ; Vol. 21, No. 3-4. pp. 519-526.

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abstract = "We have proposed a new scheme for polarized positron production, consisting of two quantum processes i.e. inverse Compton scatterings of circularly polarized laser light on high-quality electron beams and successive electron-positron pair creations. Using a circularly polarized laser beam of 532 nm scattered off a high-quality electron beam with the energy of 1.28 GeV, we have demonstrated for the first time productions of highly polarized positrons positrons with an intensity of 2 × 104 e+/bunch and an average energy of 36 MeV. Hence an average polarization of positrons was determined as 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.",

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T1 - Polarized positron generation based on laser compton scheme and its polarization measurements

AU - Sakaue, Kazuyuki

AU - Saito, Taku

AU - Yamazaki, Issei

AU - Kuroda, Ryunosuke

AU - Washio, Masakazu

AU - Hirose, Tachishige

AU - Omori, Tsunehiko

AU - Okugi, Toshiyuki

AU - Kurihara, Yoshimasa

AU - Urakawa, Junji

AU - Fukuda, Masafumi

AU - Nomura, Masahiro

AU - Ohashi, Ayumu

PY - 2007/2/10

Y1 - 2007/2/10

N2 - We have proposed a new scheme for polarized positron production, consisting of two quantum processes i.e. inverse Compton scatterings of circularly polarized laser light on high-quality electron beams and successive electron-positron pair creations. Using a circularly polarized laser beam of 532 nm scattered off a high-quality electron beam with the energy of 1.28 GeV, we have demonstrated for the first time productions of highly polarized positrons positrons with an intensity of 2 × 104 e+/bunch and an average energy of 36 MeV. Hence an average polarization of positrons was determined as 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.

AB - We have proposed a new scheme for polarized positron production, consisting of two quantum processes i.e. inverse Compton scatterings of circularly polarized laser light on high-quality electron beams and successive electron-positron pair creations. Using a circularly polarized laser beam of 532 nm scattered off a high-quality electron beam with the energy of 1.28 GeV, we have demonstrated for the first time productions of highly polarized positrons positrons with an intensity of 2 × 104 e+/bunch and an average energy of 36 MeV. Hence an average polarization of positrons was determined as 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.

KW - Laser compton scattering

KW - Polarized positron

KW - Pulsed positron beam

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JO - International Journal of Modern Physics B

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Polarized positron generation based on laser compton scheme and its polarization measurements

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