@article{oai:repo.qst.go.jp:00048636,
 author = {JINNO, S. and TANAKA, H. and 松井, 隆太郎 and KANASAKI, M. and 榊, 泰直 and 神門, 正城 and 近藤, 公伯 and 杉山, 僚 and UESAKA, M. and KISHIMOTO, Y. and 福田, 祐仁 and 松井 隆太郎 and 榊 泰直 and 神門 正城 and 近藤 公伯 and 杉山 僚 and 福田 祐仁},
 issue = {16},
 journal = {Optics Express},
 month = {Jul},
 note = {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 μm 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.},
 pages = {18774--18783},
 title = {Characterization of micron-size hydrogen clusters using Mie scattering},
 volume = {25},
 year = {2017}
}