用兆瓦级飞秒激光对氮簇中的电子进行加速

IF 1.4 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2024-11-12 DOI:10.1134/S0021364024601957

M. M. Nazarov, T. A. Semenov, A. A. Tausenev, M. V. Chaschin, P. A. Shcheglov, A. V. Lazarev, D. A. Sidorov-Biryukov, A. V. Mitrofanov, V. M. Gordienko, V. Ya. Panchenko

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引用次数: 0

摘要

在太瓦 Ti:Sa 激光辐射与氮气簇射流的相互作用过程中，实验证明了窄发散的高能电子束，其气体压力相当于凝结区的边界。在约 1019 cm-3 的等离子体浓度下，获得了能量高达 10 MeV、发散度为 10 mrad 的准直电子束。使用氮气而不是氩气或氪气可以显著改善所产生电子束的空间（发散）和能量（电荷和光谱形状）特性。在超音速射流中观察到了团簇的形成，并对其组成进行了热力学分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Electron Acceleration in Nitrogen Clusters by Terawatt Femtosecond Laser

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Electron Acceleration in Nitrogen Clusters by Terawatt Femtosecond Laser

Narrowly divergent high-energy electron beam is experimentally demonstrated during the interaction of terawatt Ti:Sa laser radiation with a nitrogen gas-cluster jet at gas pressure corresponding to the boundary of the condensation region. A collimated electron beam with an energy of up to 10 MeV and a divergence of 10 mrad at a plasma concentration of ~10¹⁹ cm^–3 is obtained. The use of nitrogen instead of argon or krypton significantly improves the spatial (divergence) and energy (charge and spectrum shape) properties of the generated electron beam. The formation of clusters in a supersonic jet is observed and their composition is thermodynamically analyzed.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.