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Xe K-shell X-ray generation using conical nozzle and 25 TW laser

Published online by Cambridge University Press:  26 June 2013

Y. Hayashi ,
A.S. Pirozhkov ,
M. Kando ,
K. Ogura ,
H. Kotaki ,
H. Kiriyama ,
H. Okada ,
H. Gotoh  and
T. Nishikawa
Y. Hayashi*
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki, Japan
A.S. Pirozhkov
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
M. Kando
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
K. Ogura
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
H. Kotaki
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
H. Kiriyama
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
H. Okada
Affiliation:
Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan
H. Gotoh
Affiliation:
Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki, Japan NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa, Japan
T. Nishikawa
Affiliation:
Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki, Japan Department of Electrical and Electronic Engineering, Tokyo Denki University, Adachi, Tokyo, Japan
*
Address correspondence and reprint requests to: Y. Hayashi, Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kizugawa, Kyoto, Japan. E-mail: hayashi.yukio@jaea.go.jp
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Abstract

To increase X-ray photon number generated by laser-cluster interaction, it is important to understand the dependence of X-ray generation on cluster size. We carried out Xe K-shell X-ray generation using a conical nozzle with Xe clusters, the radius of which was controllable by adjusting the backing pressure. The experiment clarifies the result that the Xe K-shell X-ray photon number increases with increasing cluster radius from 8 to 12 nm, and saturates at the radius between 12 and 17 nm. We also investigated the Xe K-shell X-ray photon number dependence on laser intensity, and found that the threshold laser intensity of the Xe K-shell X-ray generation exists between 2 × 1017 and 5 × 1018 W/cm2.

Keywords

Laser-cluster interactionXe K-shell X-ray
Type
Research Article
Information
Laser and Particle Beams , Volume 31 , Issue 3 , September 2013 , pp. 419 - 425
Copyright
Copyright © Cambridge University Press 2013 

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