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Journal Articles

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

Hayashi, Yukio; Pirozhkov, A. S.; Kando, Masaki; Ogura, Koichi; Kotaki, Hideyuki; Kiriyama, Hiromitsu; Okada, Hajime; Goto, Hideki*; Nishikawa, Tadashi*

Laser and Particle Beams, 31(3), p.419 - 425, 2013/09

 Times Cited Count:1 Percentile:5.34(Physics, Applied)

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$$times$$10$$^{17}$$ and 5$$times$$10$$^{18}$$ W/cm$$^2$$.

Journal Articles

Reversible on-off switch function of ion-track pores for thermo-responsive films based on copolymers consisting of diethyleneglycol-bis-allylcarbonate and acryloyl-L-proline methyl ester

Yoshida, Masaru; Nagaoka, Noiyasu*; Asano, Masaharu; Omichi, Hideki; Kubota, Hitoshi*; Ogura, K.*; Vetter, J.*; Spohr, R.*; Katakai, Ryoichi*

Journal of Nuclear Materials, 122(1), p.39 - 44, 1997/00

no abstracts in English

Oral presentation

Measurement of radon concentration and dose evaluation in the galleries at the Mizunami Underground Research Laboratory

Aoki, Katsunori; Ogura, Hideki; Kubota, Mitsuru; Tsurudome, Koji; Ikeda, Koki; Nagasaki, Yasushi; Ogata, Nobuhisa; Furuta, Sadaaki*

no journal, , 

no abstracts in English

Oral presentation

Measurement of radon concentration and dose evaluation in the galleries of 500m depth at the Mizunami Underground Research Laboratory

Aoki, Katsunori; Ogura, Hideki; Ogata, Nobuhisa; Ikeda, Koki; Nagasaki, Yasushi; Tsurudome, Koji; Furuta, Sadaaki*

no journal, , 

no abstracts in English

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