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Numerical study of microcylinder target for recombination X-ray laser

Published online by Cambridge University Press:  09 March 2009

T. Aoki
Affiliation:
Max-Planck-Institut für Quantenoptik, Ludwig-Prandtl-Str.10, D-85748 Garching, Germany
T. Yabe
Affiliation:
Department of Electronic Engineering, Gunma University, 1–5–1 Tenjin-chou, Kiryu, Gunma 376, Japan
T. Ozaki
Affiliation:
The Institute for Solid State Physics, University of Tokyo, 7–22–1 Roppongi, Minato-ku, Tokyo 106, Japan
H. Kuroda
Affiliation:
The Institute for Solid State Physics, University of Tokyo, 7–22–1 Roppongi, Minato-ku, Tokyo 106, Japan

Abstract

A microcylinder target is proposed for a recombination X-ray laser generation and is investigated by a numerical simulation. The size of the target is of the order of 1 cm in the axial direction and 100 μm in the inner radius. The target has an axial slit of 20 μm wide through which a line-focused laser illuminates the inner wall. The hot plasma produced inside is confined, and a part of this is blown out through the slit. This plasma cools due to the free expansion, so that a gain of a recombination X-ray laser appears outside the microcylinder. When a large enough amount of hot plasma is produced inside, it plays the role of a reserver. Numerical results show that the quasi-cw (continuous wave) gain of Hα line is obtained outside the aluminum microcylinder when the plasma, which has not recombined yet, is supplied continuously.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1994

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