Excitation of X rays by electrons accelerated in air in the wake wave of a laser pulse

被引：4

作者：

Faenov, A. Ya. ^{[1
]}

Pikuz, S. A., Jr. ^{[1
,2
]}

Zidkov, A. G. ^{[3
]}

Skobelev, I. Yu. ^{[1
]}

Komarov, P. S. ^{[1
]}

Chefonov, O. V. ^{[1
]}

Gasilov, S. V. ^{[1
]}

Ovchinnikov, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Joint Inst High Temp, Moscow 127412, Russia

[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[3] Cent Res Inst Elect Power Ind, Kanagawa 2400196, Japan

来源：

JETP LETTERS | 2010年 / 92卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

PLASMA SOURCE; NANOSTRUCTURES; IONOGRAPHY; PROTON; PARTICLES; TARGET;

D O I：

10.1134/S0021364010180037

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The characteristics of X rays of a laser plasma generated in the interaction of a femtosecond pulse with solid targets in an air atmosphere have been investigated. It has been shown that the mechanism for the generation of X rays in the interaction of short intense laser pulses with solid targets in a gas atmosphere is attributed to the generation of fast electrons in the region of the filamentation of a laser pulse. It has been proven experimentally that under such conditions, the solid target irradiated by laser radiation of even a low density of about 10(15) W/cm(2) very efficiently emits similar to 10-keV photons. It has been shown theoretically that the maximum energy of accelerated electrons can reach E >(max) similar to 100-200 keV under these conditions. This means that the proposed method can provide characteristic radiation with the energy of photons much higher than 10 keV.

引用

页码：375 / 378

页数：4

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