New probing techniques of radiative shocks

作者：Stehle Chantal^*; Kozlova Michaela; Larour Jean; Nejdl Jaroslav; Champion Norbert; Barroso Patrice; Suzuki Vidal Francisco; Acef Ouali; Delattre Pierre Alexandre; Dostal Jan; Krus Miroslav; Chieze Jean Pierre

来源：Optics Communications, 2012, 285(1): 64-69.

DOI：10.1016/j.optcom.2011.09.008

• X-ray lasers
• Shock waves
• Plasmas

Radiative shock waves propagating in xenon at a low pressure have been produced using 60 joules of iodine laser (lambda = 1.315 mu m) at PALS center. The shocks have been probed by XUV imaging using a Zn X-raylaser (lambda = 21 nm) generated with a 20-ns delay after the shock creating pulse. Auxiliary high-speed silicon diodes allowed performing space- and time-resolved measurement of plasma self-emission in the visible and XUV. The results show the generation of a shock wave propagating at 60 km/s preceded by a radiative precursor. This demonstrates the feasibility of radiative shock generation using high power infrared lasers and the use of XRL backlighting as a suitable diagnostic for shock imaging.

• 出版日期2012-1-1
• 单位中国地震局