Broadband X-Ray Diagnostics of a Relativistic Laser Plasma

被引:0
作者
Ivanov, K. A. [1 ,2 ]
Sivko, A. I. [1 ]
Tsymbalov, I. N. [3 ]
Salakhutdinov, G. Kh. [4 ]
Kologrivov, A. A. [2 ]
Rupasov, A. A. [2 ]
Bolkhovitinov, E. A. [2 ]
Volkov, R. V. [1 ]
Savel'ev, A. B. [1 ,2 ]
机构
[1] Moscow State Univ, Fac Phys, Moscow 119232, Russia
[2] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[3] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia
[4] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia
关键词
GENERATION; EMISSION; CONTRAST; MICROSCOPY; TRANSPORT; WAVE;
D O I
10.1134/S0021364024604925
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Absolute measurements of the X-ray spectrum of a plasma formed by intense femtosecond laser radiation on the surface of a solid target in a wide range of interaction parameters with varying the intensity and contrast of a laser pulse have been carried out. The energy distribution of the photon flux from the plasma created on the metal target in the range from 0.1 keV to 1 MeV and higher has been determined for the first time in a single experiment. Using the data obtained, physical processes in the interaction region have been analyzed. The temperatures of background and hot plasma electrons have been estimated. The role of these electron in the generation of the photon flux and the efficiency of laser radiation conversion into various ranges has been studied. A close relationship between the observed results and the contrast and peak intensity of laser radiation has been found.
引用
收藏
页码:267 / 275
页数:9
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