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Spectral and amplitude-time characteristics of crystals excited by a runaway electron beam

matter and Radiation at Extremes 2019年第3期4卷 42-46页

作者： V.F.Tarasenko m.i.lomaev E.Kh.Baksht D.V.Beloplotov A.G.Burachenko D.A.Sorokin E.i.Lipatov Laboratory of Optical Radiation of the institute of High Current Electronics Tomsk 634055Russia

The generation of runaway electrons(REs)is a significant problem in tokamak installations,causing energy loss,and melting and vaporization of the walls of the vacuum *** wide deployment of Cherenkov-type detectors,in addition to other methods,is routinely used to detect high-energy *** paper focuses on the cathodoluminescence and Cherenkov radiation excited in different crystals by *** spectral energy density of Cherenkov radiation in CaF_(2)(fluorite)and diamond at various initial electron energies is calculated,taking into account the ionization losses of electron energy,the dispersion of the refractive index of these substances,and the electron energy distribution of the beam.

关键词： excited walls beam

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GENERATiON OF RUNAWAY ELECTRONS AND X-RAYS iS AN ORDiNARY PHENOmENON iN DiFFUSE DiSCHARGES iN AN iNHOmOGENEOUS ELECTRiC FiELD 19th

GENERATION OF RUNAWAY ELECTRONS AND X-RAYS IS AN ORDINARY PH...

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The ⅪⅩ international Conference on Gas Discharges and Their Applications

作者： V F TARASENKO i D KOSTYRYA D V RYBKA E Kh BAKSHT A G BURACHENKO m i lomaev High Current Electronics institute

ISBN: (纸本)9771003651221

The paper reports the properties of supershort avalanche electron beam(SAEB) and x-ray formed in different gases at pressures from 1 torr up to 1 *** is shown that at a nanosecond discharge in the atmospheric pressure air and SAEB current recording through a small area of the foil the pulse duration behind the foil is no more than 25 ps,but from all surface of foil is about 100 *** A1 foil of thickness 10μm, the number of electrons from the entire foil anode in the atmospheric pressure air was 6.2·10 per pulse and this corresponds to a SAEB amplitude of～100 A at a 100-ps triangular pulse *** is shown that the highest amplitudes of SAEB with pulse duration about 100 ps are attained in helium,hydrogen, and nitrogen at a pressure of about 60,30,and 10 torr,*** the extracted data, estimates show that with the generator SLEP used,optimization of all parameters of the gas diode makes possible a SAEB current amplitude of about 500 A at a helium pressure of 60 torr. As the mode of the beam generation is changed due to the decrease in pressure from the above noted values,one can gradually control the FWHm of the beam current pulse between 100 and 500 ps in all gases studied.

关键词： Pressure Electric fields Gases indium RUNAWAY ELECTRONS positronium foils X-rays pulse duration Air Pressure discharge gas diode

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超高功率体放电的形成及其应用(英文)

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光学精密工程 2011年第2期19卷 273-283页

作者： TARASENKO V F BAKSHT E KH BURACHENKO A G lomaev m i RYBKA D V SHULEPOV m A SOROKiN D A SHUT'KO V High Current Electronics institute

研究了氮气中的高压体（扩散）放电特性,实验中施加的极间隙脉冲电压达数百千伏,持续时间为数纳秒,上升时间为几个纳秒,给出了实验结果。研究了氦气压强为（0.42）×10^5Pa时,从扩散形式到火花放电的放电转换过程。确定了在氮气压强下... 详细信息

研究了氮气中的高压体（扩散）放电特性,实验中施加的极间隙脉冲电压达数百千伏,持续时间为数纳秒,上升时间为几个纳秒,给出了实验结果。研究了氦气压强为（0.42）×10^5Pa时,从扩散形式到火花放电的放电转换过程。确定了在氮气压强下电流幅度与逃逸电子束电流脉宽的关系。结果表明,导致隙间扩散放电的超短雪崩电子束（SAEB）对放电过程有重要的影响。在该压强下得出了SAEB瞬间产生相对放电电流的时延与压强的关系,根据该关系,时延随着压强增加而变化,并且在压强为2×10^5Pa时最小,同时扩散放电电流脉冲的峰值随压强增加而减小。在0.5×10^5Pa的压强下,使用刀片电极和6 cm长的N2∶SF6=10∶1的激活媒质,得到了输出能量为2 mJ、脉冲功率为0.55 mW的激光。最后,在大气压强下,对AlBe箔片进行了重复频率放电处理（REP）,其表层清除了碳而且氧原子以450 nm/300pulse渗入箔片。

关键词：体放电扩散放电非均匀电场逃逸电子紫外激光器修饰及清洁

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influence of electrode spacing and gas pressure on parameters of a runaway electron beam generating during the nanosecond breakdown in SF_(6) and nitrogen

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High Voltage 2017年第2期2卷 49-55页

作者： Victor F.Tarasenko Cheng Zhang Andrey V.Kozyrev Dmitry A.Sorokin Xingmin Hou Natalya S.Semeniuk Alexander G.Burachenko Ping Yan Vasily Yu.Kozhevnikov Evgenii Kh.Baksht mikhail i.lomaev Tao Shao institute of High Current Electronics Siberian Branch(SB)Russian Academy of Sciences(RAS)Tomsk 634055Russia National Research Tomsk State University Tomsk 634050Russia National Research Tomsk Polytechnic University Tomsk 634050Russia institute of Electrical Engineering Chinese Academy of SciencesBeijing 100190People's Republic of China University of Chinese Academy of Sciences Beijing 100039People's Republic of China

This study deals with experimental and theoretical simulation data showing the influence of electrode spacing and gas pressure on parameters of a supershort avalanche electron beam(SAEB)formed in SF_(6) and nitrogen at different rise times and amplitudes of a voltage *** GiN-55-01,VPG-30-200,and SLEP-150m pulsers,tubular cathodes with a diameter of 6 mm,as well as gaps of 3,5,and 8 mm,it was shown that the SAEB current amplitude can both increase and decrease depending on an electrode spacing,a waveform and a rise time of the voltage pulse,as well as the pressure of SF6 and *** was established as a result of simulation that maximal voltage across the gap during the process of generation of runaway electrons and the thickness of an anode foil have a major effect on the SAEB current pulse amplitude.

关键词： SF_(6) electrode beam

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