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

被引：12
作者：
Kado, M
Daido, H
Fukumi, A
Li, Z
Orimo, S
Hayashi, Y
Nishiuchi, M
Sagisaka, A
Ogura, K
Mori, M
Nakamura, S
Noda, A
Iwashita, Y
Shirai, T
Tongu, H
Takeuchi, T
Yamazaki, A
Itoh, H
Souda, H
Nemoto, K
Oishi, Y
Nayuki, T
Kiriyama, H
Kanazawa, S
Aoyama, M
Akahane, Y
Inoue, N
Tsuji, K
Nakai, Y
Yamamoto, Y
Kotaki, H
Kondo, S
Bulanov, S
Esirkepov, T
Utsumi, T
Nagashima, A
Kimura, T
Yamakawa, K
机构：
[1] JAERI Kansai, Adv Photon Res Ctr, Kyoto 6190215, Japan
[2] Kyoto Univ, Inst Chem Res, Kyoto 606, Japan
来源：
LASER AND PARTICLE BEAMS | 2006年 / 24卷 / 01期
关键词：
CH coating; circular polarized pulse; collimated proton beam; high energy proton;
D O I：
10.1017/S0263034606060186
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 mu m) Tantalum targets. The laser intensities are about 4 X 10(18) W/cm(2). 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.
引用
收藏
页码：117 / 123
页数：7
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