J. Phys. IV France
Volume 11, Numéro PR2, Juillet 2001
X-Ray Lasers 2000
Page(s) Pr2-87 - Pr2-90
7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-87-Pr2-90

DOI: 10.1051/jp4:2001216

Pulse duration dependence of opacity effects in Ni-like W TCE X-ray lasers

T. Ozaki, K. Yamamoto and H. Kuroda

Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan

A compact simulation code is modified and used to investigate the effects of opacity on the 4.3-nm nickellike tungsten soft-x-ray laser, which includes the change in the escape factor with time. Result shows that the maximum gain depends only weakly on the opacity and the pump pulse duration below 1-ps. The above results predict that a 1-ps, 4-joule KrF laser pulse is sufficient for the saturated operation of the 4.3-nm laser, and that special methods to decrease opacity effects are not necessary.

© EDP Sciences 2001