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

^*Corresponding author for this work

School of Advanced Science and Engineering

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

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	519-526
Number of pages	8
Journal	International Journal of Modern Physics B
Volume	21
Issue number	3-4
DOIs	https://doi.org/10.1142/s021797920704232x
Publication status	Published - 2007 Feb 10

Keywords

Laser compton scattering
Polarized positron
Pulsed positron beam

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Condensed Matter Physics

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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",

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doi = "10.1142/s021797920704232x",

language = "English",

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pages = "519--526",

journal = "International Journal of Modern Physics B",

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TY - JOUR

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

M3 - Article

AN - SCOPUS:33847386709

SN - 0217-9792

VL - 21

SP - 519

EP - 526

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 3-4

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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