Monochromatic X-ray emission from laser produced plasma with a clean ultra-short laser pulse

Zhang, Z.*; Nishikino, Masaharu; Nishimura, Hiroaki*; Kawachi, Tetsuya; Sagisaka, Akito; Orimo, Satoshi; Ogura, Koichi; Pirozhkov, A. S.; Yogo, Akifumi; Okano, Yasuaki*; Oshima, Shinsuke*; Fujioka, Shinsuke*; Kiriyama, Hiromitsu; Kondo, Kiminori; J-KAREN Laser Operation Group

Monochromatic X-ray generation from Cu plates was experimentally studied by using a high contrast femtosecond laser pulse. Absolute yield of Ka line at 8 keV was measured as a function of laser pulse contrast ration and irradiation intensity. The conversion efficiency of 8 10 $^{-5}$ /sr, the highest value ever obtained, has been demonstrated at 5.5 10 $^{16}$ W/cm $^{2}$ with a contrast ratio of 10 $^{-11}$ .

Language	:	English
Journal	:	Reza Kenkyu
Volume	:	38
Number	:	9
Pages	:	p.698 - 701
Publication Year/Month	:	2010/09
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Paper URL	:	https://ci.nii.ac.jp/naid/10026690872
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Keywords	:	no keyword
Research Facility	:	Tキューブレーザー施設
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Article of JAEA R&D Review	:
Cooperating Institute	:	大阪大学

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Registration No. : AA20100897
JAEA Abstracts No. : 39000553
Paper Submission No. : 8776

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