Electron temperature and soft x-ray intensity scaling in laser heavy element plasma interaction

Hiromu Kawasaki; Atsushi Sunahara; Yuta Shimada; Takeo Ejima; Weihua Jiang; Gerry O'sullivan; Masaharu Nishikino; Shinichi Namba; Takeshi Higashiguchi

doi:10.1063/5.0009946

Electron temperature and soft x-ray intensity scaling in laser heavy element plasma interaction

Hiromu Kawasaki, Atsushi Sunahara, Yuta Shimada, Takeo Ejima, Weihua Jiang, Gerry O'sullivan, Masaharu Nishikino, Shinichi Namba, Takeshi Higashiguchi

Center for Advanced Microscopy and Spectroscopy

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

1 Citation (Scopus)

Abstract

We achieved a relative optically thin state in laser-produced heavy element plasmas at determined electron temperatures, which has been predicted by power balance and collisional-radiative models. We also mapped the power-loss processes in sub-nanosecond and nanosecond laser-produced high-Z plasmas. The electron temperature evaluation was in good agreement with the power balance model and was supported by the spectral analysis. The output flux in the soft x-ray region was stronger at a higher critical density.

Original language	English
Article number	065306
Journal	AIP Advances
Volume	10
Issue number	6
DOIs	https://doi.org/10.1063/5.0009946
Publication status	Published - 2020 Jun 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/5.0009946

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Electron temperature and soft x-ray intensity scaling in laser heavy element plasma interaction. / Kawasaki, Hiromu; Sunahara, Atsushi; Shimada, Yuta; Ejima, Takeo; Jiang, Weihua; O'sullivan, Gerry; Nishikino, Masaharu; Namba, Shinichi; Higashiguchi, Takeshi.

In: AIP Advances, Vol. 10, No. 6, 065306, 01.06.2020.

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

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abstract = "We achieved a relative optically thin state in laser-produced heavy element plasmas at determined electron temperatures, which has been predicted by power balance and collisional-radiative models. We also mapped the power-loss processes in sub-nanosecond and nanosecond laser-produced high-Z plasmas. The electron temperature evaluation was in good agreement with the power balance model and was supported by the spectral analysis. The output flux in the soft x-ray region was stronger at a higher critical density.",

author = "Hiromu Kawasaki and Atsushi Sunahara and Yuta Shimada and Takeo Ejima and Weihua Jiang and Gerry O'sullivan and Masaharu Nishikino and Shinichi Namba and Takeshi Higashiguchi",

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AU - Kawasaki, Hiromu

AU - Sunahara, Atsushi

AU - Shimada, Yuta

AU - Ejima, Takeo

AU - Jiang, Weihua

AU - O'sullivan, Gerry

AU - Nishikino, Masaharu

AU - Namba, Shinichi

AU - Higashiguchi, Takeshi

N1 - Funding Information: This work was supported by the JSPS Bilateral Joint Research Project and the Cooperative Research Program of “Network Joint Research Center for Materials and Devices” (under Contract Subject Nos. “20183037” and “20201127”).

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N2 - We achieved a relative optically thin state in laser-produced heavy element plasmas at determined electron temperatures, which has been predicted by power balance and collisional-radiative models. We also mapped the power-loss processes in sub-nanosecond and nanosecond laser-produced high-Z plasmas. The electron temperature evaluation was in good agreement with the power balance model and was supported by the spectral analysis. The output flux in the soft x-ray region was stronger at a higher critical density.

AB - We achieved a relative optically thin state in laser-produced heavy element plasmas at determined electron temperatures, which has been predicted by power balance and collisional-radiative models. We also mapped the power-loss processes in sub-nanosecond and nanosecond laser-produced high-Z plasmas. The electron temperature evaluation was in good agreement with the power balance model and was supported by the spectral analysis. The output flux in the soft x-ray region was stronger at a higher critical density.

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