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

页码：865 / 870

页数：6

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