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

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

doi:10.1063/1.4916395

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

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

Electrical Engineering Sciences

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We present a benchmark measurement of the electron density profile in the region where the electron density is 10¹⁹cm^-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.

Original language	English
Article number	121109
Journal	Applied Physics Letters
Volume	106
Issue number	12
DOIs	https://doi.org/10.1063/1.4916395
Publication status	Published - Mar 23 2015

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4916395

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Yoshida, K., Fujioka, S., Higashiguchi, T., Ugomori, T., Tanaka, N., Kawasaki, M., Suzuki, Y., Suzuki, C., Tomita, K., Hirose, R., Ejima, T., Ohashi, H., Nishikino, M., Sunahara, A., Li, B., Dunne, P., O'Sullivan, G., Yanagida, T., Azechi, H., & Nishimura, H. (2015). Density and x-ray emission profile relationships in highly ionized high- Z laser-produced plasmas. Applied Physics Letters, 106(12), Article 121109. https://doi.org/10.1063/1.4916395

Yoshida, K, Fujioka, S, Higashiguchi, T, Ugomori, T, Tanaka, N, Kawasaki, M, Suzuki, Y, Suzuki, C, Tomita, K, Hirose, R, Ejima, T, Ohashi, H, Nishikino, M, Sunahara, A, Li, B, Dunne, P, O'Sullivan, G, Yanagida, T, Azechi, H & Nishimura, H 2015, 'Density and x-ray emission profile relationships in highly ionized high- Z laser-produced plasmas', Applied Physics Letters, vol. 106, no. 12, 121109. https://doi.org/10.1063/1.4916395

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abstract = "We present a benchmark measurement of the electron density profile in the region where the electron density is 1019cm-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.",

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

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AU - Yoshida, Kensuke

AU - Fujioka, Shinsuke

AU - Higashiguchi, Takeshi

AU - Ugomori, Teruyuki

AU - Tanaka, Nozomi

AU - Kawasaki, Masato

AU - Suzuki, Yuhei

AU - Suzuki, Chihiro

AU - Tomita, Kentaro

AU - Hirose, Ryoichi

AU - Ejima, Takeo

AU - Ohashi, Hayato

AU - Nishikino, Masaharu

AU - Sunahara, Atsushi

AU - Li, Bowen

AU - Dunne, Padraig

AU - O'Sullivan, Gerry

AU - Yanagida, Tatsuya

AU - Azechi, Hiroshi

AU - Nishimura, Hiroaki

PY - 2015/3/23

Y1 - 2015/3/23

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AB - We present a benchmark measurement of the electron density profile in the region where the electron density is 1019cm-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.

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

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