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月 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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title = "Polarized positron generation based on laser compton scheme and its polarization measurements",

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.",

keywords = "Laser compton scattering, Polarized positron, Pulsed positron beam",

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

year = "2007",

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language = "English",

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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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U2 - 10.1142/s021797920704232x

DO - 10.1142/s021797920704232x

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AN - SCOPUS:33847386709

VL - 21

SP - 519

EP - 526

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

SN - 0217-9792

IS - 3-4

ER -

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

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