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Observation of strongly collimated proton beam from Tantalum targets irradiated with circular polarized laser pulses

Published online by Cambridge University Press:  06 March 2006

MASATAKA KADO
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
HIROYUKI DAIDO
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
ATSUSHI FUKUMI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
ZHONG LI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
SATOSHI ORIMO
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
YUKIO HAYASHI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
MAMIKO NISHIUCHI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
AKITO SAGISAKA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
KOICHI OGURA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
MICHIAKI MORI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
SHU NAKAMURA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai Institute for Chemical Research, Kyoto University
AKIRA NODA
Affiliation:
Institute for Chemical Research, Kyoto University
YOSHIHISA IWASHITA
Affiliation:
Institute for Chemical Research, Kyoto University
TOSHIYUKI SHIRAI
Affiliation:
Institute for Chemical Research, Kyoto University
HIROMU TONGU
Affiliation:
Institute for Chemical Research, Kyoto University
TAKESHI TAKEUCHI
Affiliation:
Institute for Chemical Research, Kyoto University
ATSUSHI YAMAZAKI
Affiliation:
Institute for Chemical Research, Kyoto University
HIROYUKI ITOH
Affiliation:
Institute for Chemical Research, Kyoto University
HIKARU SOUDA
Affiliation:
Institute for Chemical Research, Kyoto University
KOSHICHI NEMOTO
Affiliation:
Central Research Institute of Electric Power Industry
YUJI OISHI
Affiliation:
Central Research Institute of Electric Power Industry
TAKUYA NAYUKI
Affiliation:
Central Research Institute of Electric Power Industry
HIROMITSU KIRIYAMA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
SHUHEI KANAZAWA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
MAKOTO AOYAMA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
YUTAKA AKAHANE
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
NORIHIRO INOUE
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
KOICHI TSUJI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
YOSHIKI NAKAI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
YOICHI YAMAMOTO
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
HIDEYUKI KOTAKI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
SHUJI KONDO
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
SERGEI BULANOV
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
TIMUR ESIRKEPOV
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
TAKAYUKI UTSUMI
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
AKIRA NAGASHIMA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
TOYOAKI KIMURA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
KOICHI YAMAKAWA
Affiliation:
Advanced Photon Research Center, JAERI-Kansai
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Abstract

High-energy protons are generated by focusing an ultrashort pulsed high intensity laser at the Advanced Photon Research Center, JAERI-Kansai onto thin (thickness <10 μm) Tantalum targets. The laser intensities are about 4 × 1018 W/cm2. The prepulse level of the laser pulse is measured with combination of a PIN photo diode and a cross correlator and is less than 10−6. A quarter-wave plate is installed into the laser beam line to create circularly polarized pulses. Collimated high energy protons are observed with CH coated Tantalum targets irradiated with the circularly polarized laser pulses. The beam divergence of the generated proton beam is measured with a CR-39 track detector and is about 6 mrad.

Information

Type
Research Article
Copyright
© 2006 Cambridge University Press

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