Proton acceleration to 40 MeV using a high intensity, high contrast optical parametric chirped-pulse amplification/Ti:sapphire hybrid laser system

Ogura, Koichi; Nishiuchi, Mamiko; Pirozhkov, A. S.; Tanimoto, Tsuyoshi*; Sagisaka, Akito*; Esirkepov, T. Z.; Kando, Masaki; Shizuma, Toshiyuki; Hayakawa, Takehito; Kiriyama, Hiromitsu; Shimomura, Takuya; Kondo, Shuji; Kanazawa, Shuhei; Nakai, Yoshiki*; Sasao, Hajime*; Sasao, Fumitaka*; Fukuda, Yuji; Sakaki, Hironao; Kanasaki, Masato; Yogo, Akifumi; Bulanov, S. V.; Bolton, P.; Kondo, Kiminori

Using high contrast (10 $^{10}$ :1) and high intensity (10 $^{21}$ W/cm $^{2}$ ) laser pulse with the duration of 40 fs from OPCPA/Ti:Sapphire laser, a 40 MeV proton bunch is obtained, which is a record for laser pulse with energy less than 10 J. The efficiency for generation of protons with kinetic energy above 15 MeV is 0.1%.

Language	:	English
Journal	:	Optics Letters
Volume	:	37
Number	:	14
Pages	:	p.2868 - 2870
Publication Year/Month	:	2012/07
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Paper URL	:	https://doi.org/10.1364/OL.37.002868
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Press Release	:	高強度レーザーを用いて世界最高エネルギー陽子線を発生; レーザーを使った小型粒子線がん治療へさらに一歩前進
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Registration No. : AA20120312
JAEA Abstracts No. :
Paper Submission No. : 12849

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