Hard X-ray production from femtosecond plasma induced in cluster-like solids

被引:3
|
作者
Gavrilov, SA [1 ]
Golishnikov, DM [1 ]
Gordienko, VM [1 ]
Mikheev, PM [1 ]
Savel'ev, AB [1 ]
Shashkov, AA [1 ]
Volkov, RV [1 ]
机构
[1] Moscow Inst Elect Tech, Moscow, Russia
来源
ALT'99 INTERNATIONAL CONFERENCE ON ADVANCED LASER TECHNOLOGIES | 2000年 / 4070卷
关键词
femtosecond laser plasma; cluster like solids; hard X-rays; thermonuclear reaction;
D O I
10.1117/12.378156
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Recent advances in hard X-ray production from porous silicon targets have been reported. Experimental data on efficient hot electron generation in plasma, created by 200 fs laser pulses at intensity in excess of 10(16) W/cm(2) are discussed. The assessment of the hot electron temperature in single laser shot was made using simple modification of the well known X-ray filter method. X-ray quanta with energy of similar to 80 keV were observed at the "moderate" intensity of 2.10(16) W/cm(2), revealing the existence of the second non-thermal electron component with the "temperature" of 30-50 keV. Finally, we discuss the feasibility to design 2.5 MeV neutron source with peak flux of more than 10(20) neutrons/(s.cm(2)) using deuterium enriched nanowire metallic arrays.
引用
收藏
页码:206 / 214
页数:9
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