J. Phys. IV France
Volume 11, Numéro PR2, Juillet 2001
X-Ray Lasers 2000
Page(s) Pr2-255 - Pr2-258
7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-255-Pr2-258

DOI: 10.1051/jp4:2001247

Recombining plasma X-ray laser assisted by charge exchange recombination

T. Kawachi, M. Kado, M. Tanaka, N. Hasegawa, A. Nagashima and Y. Kato

Advanced Photon Research Center, Kansai Research Establishment, Japan Atomic Energy Research Institute, 8-1 Umemidai, Kizu, Soraku, Kyoto 619-0215, Japan

Recombining plasma x-ray laser using charge exchange recombination (CXR) is proposed. Fully stripped carbon ions collide with neutral He atoms and become excited hydogenlike carbon ions, in which the excited levels with n = 3 or 4 are mainly populated. We calculated the gain coeficients of the Balmer [MATH] and Lyman [MATH] lines of the hydrogenlike carbon ions by the use of a collisional-radiative model in which the CXR process is included. The calculated result shows that substantial gain can be generated for the Lyman [MATH] and Balmer [MATH] lines and that the gain of the Balmer [MATH] line can be strongly enhanced by the effect of CXR. We also report a preliminary experiment of this scheme

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