Abstract

The interaction between a 25TW laser and Xe clusters at a peak intensity of 1×1019W/cm2 has been investigated. Xe K-shell x rays, whose energies are approximately 30keV, were clearly observed with a hard x-ray CCD at 3.4MPa. Moreover, we studied the yield of the Xe K-shell x rays by changing the pulse duration of the laser at a constant laser energy and found that the pulse duration of 40fs is better than that of 300fs for generating Xe K-shell x rays.

© 2011 Optical Society of America

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