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Title: Effects of an axial magnetic field on Z-pinch plasmas for extreme ultraviolet sources

Abstract

This paper describes the effect of an axial magnetic field (B{sub z}) on plasma pinch dynamics and on the extreme ultraviolet (EUV) emission property of a compact Z-pinch device for EUV sources. The Z-pinch xenon plasma was driven by a pulse current with an amplitude of 27 kA and duration of 150 ns in an alumina tube with a diameter of 5 mm. A quasistatic magnetic field of up to 360 G is applied to the plasma. The EUV emission was evaluated for spectra, spatial distribution of the emission, and light energy at 13.5 nm with 2% bandwidth. A time-resolved interferogram provides the electron line density and pinch dynamics of the plasma. When a magnetic field of 160 G was applied to the plasma, the emission energy was approximately double that without the magnetic field. The spectroscopic measurement shows that the EUV spectrum drastically varies with magnetic-field strength. The time-resolved interferogram indicates that the axial magnetic field contributes by making the plasma compression smooth and by sustaining certain plasma conditions longer. From these experimental results, it was concluded that applying an axial magnetic field can be an effective method to improve EUV emission.

Authors:
; ; ; ; ; ;  [1]
  1. Department of Electrical and Computer Engineering, Kumamoto University, 39-1, Kurokami 2-Chome, Kumamoto 860-8555 (Japan)
Publication Date:
OSTI Identifier:
20787779
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 99; Journal Issue: 1; Other Information: DOI: 10.1063/1.2158132; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALUMINIUM OXIDES; ELECTRON DENSITY; EXTREME ULTRAVIOLET RADIATION; LINEAR Z PINCH DEVICES; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PHOTON EMISSION; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; PULSES; SPATIAL DISTRIBUTION; TIME RESOLUTION; XENON

Citation Formats

Katsuki, Sunao, Kimura, Akihiro, Kondo, Yoshihiro, Horita, Hiroyuki, Namihira, Takao, Sakugawa, Takashi, and Akiyama, Hidenori. Effects of an axial magnetic field on Z-pinch plasmas for extreme ultraviolet sources. United States: N. p., 2006. Web. doi:10.1063/1.2158132.
Katsuki, Sunao, Kimura, Akihiro, Kondo, Yoshihiro, Horita, Hiroyuki, Namihira, Takao, Sakugawa, Takashi, & Akiyama, Hidenori. Effects of an axial magnetic field on Z-pinch plasmas for extreme ultraviolet sources. United States. doi:10.1063/1.2158132.
Katsuki, Sunao, Kimura, Akihiro, Kondo, Yoshihiro, Horita, Hiroyuki, Namihira, Takao, Sakugawa, Takashi, and Akiyama, Hidenori. Sun . "Effects of an axial magnetic field on Z-pinch plasmas for extreme ultraviolet sources". United States. doi:10.1063/1.2158132.
@article{osti_20787779,
title = {Effects of an axial magnetic field on Z-pinch plasmas for extreme ultraviolet sources},
author = {Katsuki, Sunao and Kimura, Akihiro and Kondo, Yoshihiro and Horita, Hiroyuki and Namihira, Takao and Sakugawa, Takashi and Akiyama, Hidenori},
abstractNote = {This paper describes the effect of an axial magnetic field (B{sub z}) on plasma pinch dynamics and on the extreme ultraviolet (EUV) emission property of a compact Z-pinch device for EUV sources. The Z-pinch xenon plasma was driven by a pulse current with an amplitude of 27 kA and duration of 150 ns in an alumina tube with a diameter of 5 mm. A quasistatic magnetic field of up to 360 G is applied to the plasma. The EUV emission was evaluated for spectra, spatial distribution of the emission, and light energy at 13.5 nm with 2% bandwidth. A time-resolved interferogram provides the electron line density and pinch dynamics of the plasma. When a magnetic field of 160 G was applied to the plasma, the emission energy was approximately double that without the magnetic field. The spectroscopic measurement shows that the EUV spectrum drastically varies with magnetic-field strength. The time-resolved interferogram indicates that the axial magnetic field contributes by making the plasma compression smooth and by sustaining certain plasma conditions longer. From these experimental results, it was concluded that applying an axial magnetic field can be an effective method to improve EUV emission.},
doi = {10.1063/1.2158132},
journal = {Journal of Applied Physics},
number = 1,
volume = 99,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}