Density and x-ray emission profile relationships in highly ionized high-Z laser-produced plasmas

作者：Yoshida Kensuke; Fujioka Shinsuke^*; Higashiguchi Takeshi; Ugomori Teruyuki; Tanaka Nozomi; Kawasaki Masato; Suzuki Yuhei; Suzuki Chihiro; Tomita Kentaro; Hirose Ryoichi; Ejima Takeo; Ohashi Hayato; Nishikino Masaharu; Sunahara Atsushi; Li Bowen; Dunne Padraig; O'Sullivan Gerry; Yanagida Tatsuya; Azechi Hiroshi; Nishimura Hiroaki

来源：Applied Physics Letters, 2015, 106(12): 121109.

DOI：10.1063/1.4916395

We present a benchmark measurement of the electron density profile in the region where the electron density is 10(19) cm(-3) and where the bulk of extreme ultraviolet (EUV) emission occurs from isotropically expanding spherical high-Z gadolinium plasmas. It was found that, due to opacity effects, the observed EUV emission is mostly produced from an underdense region. We have analyzed time-resolved emission spectra with the aid of atomic structure calculations and find the multiple ion charge states around 18+ during the laser pulse irradiation.

• 出版日期2015-3-23
• 单位兰州大学