Laser Plasma Heavy Ion Source Using Thin-Foil Target with Micro Tips

被引：1

作者：

Matsukado, Koji ^{[1
]}

Fujimoto, Masatoshi ^{[1
]}

Takahashi, Hironori ^{[1
]}

Kawada, Yoichi ^{[1
]}

Ohsuka, Shinji ^{[1
]}

Aoshima, Shin-ichiro ^{[1
]}

机构：

[1] Hamamatsu Photon KK, Cent Res Lab, Hamakita Ku, Hamamatsu, Shizuoka 4348601, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2009年 / 78卷 / 09期

关键词：

femtosecond intense laser; relativistic laser plasma; heavy ion acceleration; foil target; field emitter; PROTON; BEAMS; THERAPY;

D O I：

10.1143/JPSJ.78.093501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A target for a laser plasma ion source is improved by adding micro tips to a polytetrafluoroethylene thin foil that originally has a fibrous microstructure. C6+ ions, deuterons, and protons are generated by irradiation of the target with laser pulses whose maximum intensity was 4.8 x 10(18) W/cm(2). The additional micro-tip structure clearly increases the yields of deuterons and C6+ ions, although that of the protons was not altered. The maximum energies of all the ion species are almost the same between the new and the conventional targets. They were similar to 0.9, similar to 1, and similar to MeV for the protons, deuterons, and C6+ ions, respectively.

引用

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