Characterization of micron-size hydrogen clusters using Mie scattering

被引：12

作者：

Jinno, S. ^{[1
,2
]}

Tanaka, H. ^{[1
,3
]}

Matsui, R. ^{[1
,4
]}

Kanasaki, M. ^{[1
,5
]}

Sakaki, H. ^{[1
]}

Kando, M. ^{[1
]}

Kondo, K. ^{[1
]}

Sugiyama, A. ^{[1
]}

Uesaka, M. ^{[2
]}

Kishimoto, Y. ^{[4
]}

Fukuda, Y. ^{[1
,3
]}

机构：

[1] Natl Inst Quantum & Radiol Sci & Technol QST, Kansai Photon Sci Inst KPSI, 8-1-7 Umemidai, Kizugawa, Kyoto 6190215, Japan

[2] Univ Tokyo, Nucl Profess Sch, 2-22 Shirakata Shirane, Naka, Ibaraki 3191188, Japan

[3] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, 6-1 Kasugakoen, Fukuoka 8168580, Japan

[4] Kyoto Univ, Grad Sch Energy Sci, Kyoto 6110011, Japan

[5] Kobe Univ, Grad Sch Maritime Sci, Higashinada Ku, 5-1-1 Fukaeminamimachi, Kobe, Hyogo 6580022, Japan

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 16期

关键词：

PROTON-BEAMS;

D O I：

10.1364/OE.25.018774

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Hydrogen clusters with diameters of a few micrometer range, composed of 10(8-10) hydrogen molecules, have been produced for the first time in an expansion of supercooled, high-pressure hydrogen gas into a vacuum through a conical nozzle connected to a cryogenic pulsed solenoid valve. The size distribution of the clusters has been evaluated by measuring the angular distribution of laser light scattered from the clusters. The data were analyzed based on the Mie scattering theory combined with the Tikhonov regularization method including the instrumental functions, the validity of which was assessed by performing a calibration study using a reference target consisting of standard micro-particles with two different sizes. The size distribution of the clusters was found discrete peaked at 0.33 +/- 0 : 03, 0.65 +/- 0 : 05, 0.81 +/- 0.06, 1.40 +/- 0.06 and 2.00 +/- 0.13 mu m in diameter. The highly reproducible and impurity-free nature of the micron-size hydrogen clusters can be a promising target for laser-driven multi-MeV proton sources with the currently available high power lasers. (C) 2017 Optical Society of America

引用

页码：18774 / 18783

页数：10

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