长高压放电中 X 射线发射区的时空定位

IF 1.4 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2024-09-03 DOI:10.1134/S0021364024601751
E. V. Parkevich, K. V. Shpakov, A. A. Rodionov, I. S. Baidin, Ya. K. Bolotov, A. V. Oginov
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引用次数: 0

摘要

我们首次在半米开阔气隙中对电压约为 1 MV 的高压放电过程中发射的硬 X 射线进行了同步时空测量。利用带铅膜片的闪烁探测器阵列和放电本征发光的纳秒摄影,研究表明,当整个放电间隙中形成无数明亮发光的等离子体通道,并流过振幅达数百安培的放电电流时,X 射线就会在放电发展阶段发射出来。研究发现,在整个放电间隙中,包括阴极和阳极区域、近阴极和近阳极区域以及放电间隙中间,X 射线(能量高于 5 千伏的光子)几乎可以同步开始发射。我们获得了沿放电间隙观测到的 X 射线闪烁的总功率和数量的统计分布。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Spatiotemporal Localization of X-Ray Emission Regions in a Long High-Voltage Discharge

Synchronous spatiotemporal measurements of hard X rays emitted during the development of a high-voltage discharge at voltages of ~1 MV in half-meter open air gaps have been carried out for the first time. Using an array of scintillation detectors with lead diaphragms and the nanosecond photography of the discharge in the intrinsic luminescence, it has been shown that X rays are emitted in the discharge development stage when numerous brightly luminescent plasma channels are formed in the entire discharge gap and the discharge current with an amplitude of hundreds of amperes flows. It has been found that the emission of X rays (photons with energies above 5 keV) can start almost synchronously in the entire discharge gap, including the cathode and anode regions, near-cathode and near-anode regions, and the middle of the discharge gap. The statistical distributions of the total power and the number of the observed X-ray flashes along the discharge gap have been obtained.

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来源期刊
JETP Letters
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.
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