Yasushi Hayashi et al 2004 Plasma Sources Sci. Technol. 13 675 doi:10.1088/0963-0252/13/4/017
Yasushi Hayashi, Nobuhiro Sakamoto, Yongpeng Zhao, Yuanli Cheng, Priya Chalise, Masato Watanabe, Akitoshi Okino, Kazuhiko Horioka and Eiki Hotta
Show affiliationsWe have measured the time of lasing onset of a capillary z-pinch discharge used for Ne-like Ar soft x-ray laser generation. It was found that for a relatively long plasma, the relationship between the time of lasing onset and the filling pressure of the Ar gas agrees, in trend, with that predicted by simulation. An interesting result was observed: the time of lasing onset becomes delayed when the length of the capillary becomes shorter, which is considered to be caused by an end-effect of the capillary on the pinching process. This also implies that a relatively long capillary is favourable for obtaining a plasma column of uniformity, and thus for reducing the relative absorption of laser power.
52.38.Ph X-ray, gamma-ray and particle generation
52.38.Dx Laser light absorption in plasmas (collisional, parametric, etc.)
Issue 4 (November 2004)
Received 6 April 2004
Published 28 October 2004
Yasushi Hayashi et al 2004 Plasma Sources Sci. Technol. 13 675
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