Measurements of the Spectral Characteristics of the Laser-Plasma Sources Using Thermoluminescent Detectors

IF 0.6 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Bulletin of the Lebedev Physics Institute Pub Date : 2025-02-04 DOI:10.3103/S1068335624602310

K. A. Ivanov, G. Kh. Salakhutdinov, A. I. Sivko, I. N. Tsymbalov, I. G. Grigor’eva, I. A. Busygina, A. A. Rupasov, P. V. Moskvich, R. V. Volkov, A. B. Savel’ev

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Abstract

A method of wide-range X-ray and electron spectrometry of plasma formed by a femtosecond laser pulse with a peak intensity of over 10¹⁸ W/cm² on the surface of a solid-state target is experimentally considered. Measurements of a flow of charged particles and quanta were carried out using thermoluminescent detectors based on LiF(Mg, Ti) that accumulate a dose, in front of which magnets were additionally installed to isolate the X-ray component. The spectra were obtained on the basis of the method for determining the accumulated dose of a detector depending on the thickness of the filter installed in front of it. The data have been restored in the range from 10 keV to several megaelectronvolts. The “temperatures” of the hot electron components of laser plasma have been determined, which are 160 and 1500 keV and may be related to the effects of particle acceleration in the dense-plasma region, as well as the temperatures during propagation of radiation in a cloud of subcritical density.

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来源期刊

Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

25.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.