Characterization of an intense laser-produced preformed plasma for proton generation

被引:1
|
作者
Sagisaka, A.
Daido, H.
Ogura, K.
Orimo, S.
Hayashi, Y.
Mom, M.
Nishiuchi, M.
Yogo, A.
Kado, M.
Fukumi, A.
Li, Z.
Pirozhkov, A. S.
Nakamura, S.
Iwashita, Y.
Shirai, T.
Noda, A.
Oishi, Y.
Nayuki, T.
Fujii, T.
Nemoto, K.
机构
[1] Japan Atom Energy Agcy, Adv Photon Res Ctr, Kizugawa, Kyoto 6190215, Japan
[2] Natl Inst Radiol Sci, Chiba 2638555, Japan
[3] Russian Acad Sci, PN Lebedev Phys Inst, Div Opt, Moscow 119991, Russia
[4] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan
[5] Cent Res Inst Elect Power Ind, Yokosuka, Kanagawa 2400196, Japan
关键词
high-intensity laser; proton beam; preformed plasma;
D O I
10.3938/jkps.51.442
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
High-energy protons are generated with a 3-mu m-thick tantalum target irradiated with a high-intensity laser under the preformed plasma condition. We observe the electron density distributions of preformed plasmas with two-color probe beams as interferometers. The preformed plasma at the front side of the target is generated by pre-pulses of a high-intensity Ti:sapphire laser. In this preformed plasma condition, the maximum proton enegy is similar to 900 keV. The half angle of the generated proton beam (> 500 keV) is about 10 degrees.
引用
收藏
页码:442 / 446
页数:5
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