热释光探测器对飞秒激光等离子体x射线辐射光谱组成的研究

IF 0.4 4区 工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY
G. H. Salakhutdinov, K. A. Ivanov, I. G. Grigoryeva, V. V. Kushin, A. A. Rupasov, I. N. Tsymbalov, A. B. Savelyev-Trofimov, I. A. Busygina, P. Yu. Naumov
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引用次数: 0

摘要

基于热释光LiF(Mg,Ti)氟化锂探测器,研究了1 keV至近1 MeV光子能量范围内飞秒激光等离子体x射线辐射的光谱组成。该技术已与矩阵型半导体探测器一起进行了实验测试。在峰值强度为~1018 W/cm2的飞秒脉冲作用于金属(铜)靶上的等离子体参数进行了测量,在确定光谱形状和激光脉冲能量转换成x射线通量的系数方面,不同类型探测器的数据具有很好的一致性。对热电子的温度进行了估计,其值超过100 keV。测定了铜k线的x射线通量,每次超过109。讨论了激光等离子体相互作用问题中光谱测量技术的优缺点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigation of the Spectral Composition of X-Ray Radiation from Femtosecond Laser Plasma by Thermoluminescent Detectors

Investigation of the Spectral Composition of X-Ray Radiation from Femtosecond Laser Plasma by Thermoluminescent Detectors

A technique based on thermoluminescent LiF(Mg,Ti) lithium fluoride detectors has been developed to study the spectral composition of  X-ray radiation of femtosecond laser plasma in a wide range of photon energies from 1 keV to almost 1 MeV. This technique has been experimentally tested together with matrix-type semiconductor detectors. The plasma parameters have been measured under the action of a femtosecond pulse with a peak intensity of ~1018 W/cm2 on a metal (copper) target, and good agreement is demonstrated between data from different detector types in terms of determining both the spectrum shape and the coefficient of the laser-pulse energy conversion into an X-ray flux. The temperature of hot electrons has been estimated, and its value exceeds 100 keV. The X-ray flux of copper K-lines, which exceeds 109 per shot, has been determined. The advantages and drawbacks of techniques for measuring spectra in problems of laser-plasma interaction are considered.

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来源期刊
Instruments and Experimental Techniques
Instruments and Experimental Techniques 工程技术-工程:综合
CiteScore
1.20
自引率
33.30%
发文量
113
审稿时长
4-8 weeks
期刊介绍: Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.
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