Temporal structure of X-ray radiation pulses of picosecond laser plasma

被引：0
作者：
Belyaev, V. S. [1 ]
Kovkov, D. V. [1 ]
Matafonov, A. P. [1 ]
Karabadzhak, G. F. [1 ]
Raikunov, G. G. [1 ]
Faenov, A. Ya. [2 ]
Pikuz, S. A. [2 ]
Skobelev, I. Yu. [2 ]
Pikuz, T. A. [2 ]
Fokin, D. A. [2 ]
Ignat'ev, G. N. [3 ]
Kapitanov, S. V. [3 ]
Krapiva, P. S. [3 ]
Korotkov, K. E. [3 ]
Fortov, V. E. [2 ]
机构：
[1] Fed State Unitary Enterprise Cent Res Inst Mach B, Korolyov 141070, Moscow Region, Russia
[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia
[3] All Russian Inst Automat, Moscow 115304, Russia
来源：
QUANTUM ELECTRONICS | 2013年 / 43卷 / 09期
关键词：
laser plasma; X-ray radiation; picosecond pulses; GENERATION; CLUSTERS; SURFACE; MATTER;
D O I：
10.1070/QE2013v043n09ABEH015168
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The shape of the X-ray pulse generated by picosecond laser plasma is experimentally studied. The unusual phenomenon was experimentally observed for the first time for targets made of moderate-heavy chemical elements, namely, the pulse of hard X-ray radiation generated by laser plasma at the laser radiation flux of similar to 10(18) W cm(-2) had a longer duration than the pulse of softer X-ray radiation. A simple kinetic model is suggested for explaining this fact. We have suggested a method for controlling the temporal shape of X-ray pulse emitted by laser plasma by varying the contrast of laser pulse.
引用
收藏
页码：865 / 870
页数：6
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