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2018 20th International Symposium on High-Current Electronics (ISHCE)最新文献

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A New Gas Switch for Low-Inductance Capacitor-Switch Assemblies 用于低电感电容开关组件的新型气体开关
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521212
D. Molchanov, D. Rybka, I. Lavrinovich, A. Artyomov
{"title":"A New Gas Switch for Low-Inductance Capacitor-Switch Assemblies","authors":"D. Molchanov, D. Rybka, I. Lavrinovich, A. Artyomov","doi":"10.1109/ISHCE.2018.8521212","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521212","url":null,"abstract":"The paper presents a new three-electrode gas switch operating on the principle of field distortion for low-inductance capacitor-switch assemblies rated at a voltage of ±80 kV, discharge current of ≈100 kA, and rise time of 100 ns. According to measurements of its trigger delay and jitter at different voltages and pressure from 3 to 10 atm, the jitter of the switch (standard deviation) is 1.5 ns, allowing simultaneous switching of a large number of low-inductance capacitor-switch assemblies. The operating characteristics of the gas switch demonstrate its potential for successful use in LTD technologies.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127366967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Formation of 1.4-MeV Runaway Electrons Flow in Air 1.4 mev失控电子在空气中流动的形成
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521192
A. Sadykova, M. S.Pedos, S. Rukin, V. Rostov, I. Romanchenko, A. Sadykov, K. Sharypov, V. Shpak, S. Shunailov, M. R. Ul'masculov, M. Yalandin
{"title":"Formation of 1.4-MeV Runaway Electrons Flow in Air","authors":"A. Sadykova, M. S.Pedos, S. Rukin, V. Rostov, I. Romanchenko, A. Sadykov, K. Sharypov, V. Shpak, S. Shunailov, M. R. Ul'masculov, M. Yalandin","doi":"10.1109/ISHCE.2018.8521192","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521192","url":null,"abstract":"Delay stage of pulsed breakdown in air gap lasts longer than the time of electron free acceleration from the cathode to anode. When the voltage rise time in the gap is comparable with this time interval and electric field strength is sufficiently high, one can expect formation the flow of runaway electrons (RE) with a relativistic energy approaching to that determined by the amplitude of the voltage pulse. The train of serially connected gyromagnetic nonlinear transmission lines at the solid-state modulator S-500 output was used to form -860-kV travelling voltage pulse possessing a maximum rate of the voltage rise of 10 MV/ ns at a 100-ps-long front. Due to breakdown delay stage, the pulse amplitude was doubled at the cathode of 2-cm-long air gap in an open-end regime. As a result, RE energy of at least 1.4 MeV was achieved at the anode of the gap. Temporal-and energetic structure of REs pulse is considered.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117321290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Table-Top Ion Implanter Based on Low-Voltage Vacuum Spark 基于低压真空火花的台式离子注入器
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521213
O. Shipilova, E. Martynovich, V. Paperny, A. Rakevich, N. Lebedev, V. Dresvyansky, S. Gorbunov
{"title":"Table-Top Ion Implanter Based on Low-Voltage Vacuum Spark","authors":"O. Shipilova, E. Martynovich, V. Paperny, A. Rakevich, N. Lebedev, V. Dresvyansky, S. Gorbunov","doi":"10.1109/ISHCE.2018.8521213","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521213","url":null,"abstract":"The results of investigations of a low-voltage (<2 kV) vacuum spark with a current rise time of about 0.5 µs are presented. The samples of LiF and KCI crystals were irradiated with a plasma discharge stream using Cu and Ag cathodes. The characteristics of photoluminescence of irradiated samples were performed with a sensitive scanning confocal fluorescence microscope. The photoluminescence of a layer less than 1 micron thick is recorded which consists of subnanosize clusters of cathode material formed from implanted ions. The x-ray fluorescence spectrometry method was used to measure the surface density of the ion beam emitted by a discharge that was 4 ×1012ion/cm2per pulse.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124673025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Subnanosecond Breakdown in the Strongly Overvoltaged Gap: Simulation and Experiment 强过压间隙亚纳秒击穿:仿真与实验
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521222
D. Beloplotov, A. Grishkov, D. Sorokin, V. Shklyaev, V. Tarasenko, M. Lomaev
{"title":"Subnanosecond Breakdown in the Strongly Overvoltaged Gap: Simulation and Experiment","authors":"D. Beloplotov, A. Grishkov, D. Sorokin, V. Shklyaev, V. Tarasenko, M. Lomaev","doi":"10.1109/ISHCE.2018.8521222","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521222","url":null,"abstract":"The results on experimental study and numerical simulation of subnanosecond breakdown of a “point-plane” gap filled with nitrogen are presented. Nanosecond voltage pulses of negative polarity with an amplitude of 25 kV were applied to the gap. In the experiments, radiation emitted at the stage of plasma formation was registered with a four-channel ICCD camera, as well as a streak camera equipped with monochromator. In addition, pulses of voltage and discharge current were registered. The numerical simulation was performed using the modified PIC code combined with Monte-Carlo method. The numerical model was based on the actual geometry of the gas discharge chamber equipped with voltage and current sensors and used in the experiment. To compare the time behavior of plasma radiation with experimental data, spatial and time behavior of excited nitrogen molecules was monitored in the simulation. The propagation velocity of an ionization wave front was determined. The model of processes taking place in the discharge gap was constructed.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121431596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Power Capacitor-Switch Assemblies Rated at 100 ns 额定100ns的大功率电容开关组件
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521223
I. Lavrinovich, D. Molchanov, N. Zharova
{"title":"High-Power Capacitor-Switch Assemblies Rated at 100 ns","authors":"I. Lavrinovich, D. Molchanov, N. Zharova","doi":"10.1109/ISHCE.2018.8521223","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521223","url":null,"abstract":"The paper presents a new design of capacitor-switch assemblies with high absolute and specific output power. Unlike the previous models developed at IHCE SB RAS, the new design comprises not one but two heteropolar cylindrical hollow capacitors connected via high-voltage leads to a common three-electrode switch operating on the principle of field distortion. The design provides compact arrangement of capacitors and switches and a low (62 nH) total inductance of the discharge circuit. The parameters of such capacitor-switch assembles show their potential for successful use in compact LTD stages and pulsed power accelerators.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"25 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127793912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Measurements of Sub-Nanosecond Pulsed Electromagnetic Waves by Strip-Line Sensors with Long Transmitting Coaxial Cable 长传输同轴电缆带线传感器测量亚纳秒脉冲电磁波
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521200
V. M. Fedorov, V. Y. Ostashev, V. Tarakanov, A. V. Ulianov
{"title":"Measurements of Sub-Nanosecond Pulsed Electromagnetic Waves by Strip-Line Sensors with Long Transmitting Coaxial Cable","authors":"V. M. Fedorov, V. Y. Ostashev, V. Tarakanov, A. V. Ulianov","doi":"10.1109/ISHCE.2018.8521200","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521200","url":null,"abstract":"Antennas of strip-line types with transmitting coaxial cable are presented as ultra-wideband sensors of the E (t)-field impulses in electromagnetic traveling-waves at free space. The cable of 1–10 m length produces noticeable attenuation and distortion of sub-nanosecond signals. Computer models of coaxial cables are given. A way to increase the sensor sensitivity for rapid signals to compensate of the cable losses is shown by simulated and experimental results. Considered laboratory antenna sensor of microstrip design with 4m cable length has 0.36 V/(kV/m) sensitivity, 50 ps rise-time and 4.2 ns time-gap.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133801249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Compact LTD Stage Based on a New Capacitor-Switch Assembly 基于新型电容开关组件的紧凑型有限电舞台
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521210
I. Lavrinovich, A. Artyomov, D. Molchanov, D. Rybka
{"title":"Compact LTD Stage Based on a New Capacitor-Switch Assembly","authors":"I. Lavrinovich, A. Artyomov, D. Molchanov, D. Rybka","doi":"10.1109/ISHCE.2018.8521210","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521210","url":null,"abstract":"The paper presents a compact linear transformer driver (LTD) based on a recently designed HCElcsa 160-0.1 capacitor-switch assembly. The LTD stage comprises twelve capacitor-switch assemblies (CSAs) connected in parallel to a matched load and ferromagnetic cores of total cross-section 90 cm2 made of an amorphous 2NSR alloy tape 30 µm thick (analogue of Metglass). The outer diameter of the stage is ≈1 m, and its height is 0.45 m. Estimations suggest that when switched in sync, such CSAs can provide a current pulse with an amplitude of 1.1 MA and rise time of ~100 ns at a matched load of 0.067 Ohm, which corresponds to a pulsed power of 80 GW. The small overall dimensions and the high output power of the LTD stage can allow its successful use as a driver of low-impedance loads in laboratory studies and as a standard element of pulsed power accelerators.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114581231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bulk Resonances in Slow-Wave Structures with High Ratios of Diameter to Radiation Wavelength 高直径辐射波长比慢波结构中的体共振
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521203
V. Chazov, M. Deichuly, V. Koshelev
{"title":"Bulk Resonances in Slow-Wave Structures with High Ratios of Diameter to Radiation Wavelength","authors":"V. Chazov, M. Deichuly, V. Koshelev","doi":"10.1109/ISHCE.2018.8521203","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521203","url":null,"abstract":"The program for numerical simulation of electrodynamic characteristics in large cross-sectional (overmode) slow-wave structures has been developed on the basis of the scattering matrix method. The program code allows studying electromagnetic fields of axially symmetric TM - and TE-modes of circular slow-wave structures (SWS) with the waveguide diameter-to-radiation wavelength ratio of about 4–50 in the frequency range of up to 0.5 THz. Detailed numerical investigations of dispersion characteristics of infinite periodic waveguides and electromagnetic eigenfields of TMon-modes for the finite length SWSs with the diameter-to-wavelength ratio equal to 4, 8, and 16 are presented. The cases of appearance of longitudinal bulk resonances and a region of stable maintenance of coupled waves TM01- TM0n in the finite length SWSs, depending on the height of diaphragms, are demonstrated. Based on the results of the simulation, the requirements to the accuracy of the geometric parameters of SWS, necessary to maintain the bulk resonance mode are identified.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130767170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generation of Terahertz Radiation by Electron Beam-Plasma Interaction 电子束-等离子体相互作用产生太赫兹辐射
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521220
G. Dudnikova, E. Berendeev, A. Efimova, V. Vshivkov
{"title":"Generation of Terahertz Radiation by Electron Beam-Plasma Interaction","authors":"G. Dudnikova, E. Berendeev, A. Efimova, V. Vshivkov","doi":"10.1109/ISHCE.2018.8521220","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521220","url":null,"abstract":"At present, the search for new methods of generation electromagnetic radiation in the terahertz frequency range (THz) has emerged as one of the most promising rapidly developing areas of research in science and engineering, including security and medical diagnostics. One of the modern solutions of the problem is the generation of electromagnetic (EM) waves due to the interaction of high-current relativistic electron beams with plasma. Since in this case the radiation frequency is comparable with the plasma frequency, it can be easily adjusted by simply changing the plasma density. The efficient terahertz electromagnetic emission was produced during the injection of relativistic electron beams into plasma in laboratory experiments at the GOL-3 facility INP SB RAS. In this paper the mechanisms of the high efficiency of energy transfer from the relativistic electron beam to the EM radiation in turbulent regime of collisionless plasma are investigated on the base of computer simulation. The kinetic approach for ion and electron plasma components, as well as for electron beam, was used in 2D numerical model with the real mass ratio of charged particles. A parallel electromagnetic particle-in-cell (PIC) code UMKA2D3V was applied to simulate beam-plasma system for parameters close to the parameters of laboratory experiments at GOL-3 facility. Regimes of injection of one electron beam into the plasma and the counter injection of electron beams were considered. Computational experiments were performed using modern computer systems with massively parallel architecture.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132546604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ion Beams of Low-Pressure Glow Discharge in Transverse Supersonic Gas Flow 超声速横向气流中低压辉光放电的离子束
2018 20th International Symposium on High-Current Electronics (ISHCE) Pub Date : 2018-09-01 DOI: 10.1109/ISHCE.2018.8521221
D. Israphilov
{"title":"Ion Beams of Low-Pressure Glow Discharge in Transverse Supersonic Gas Flow","authors":"D. Israphilov","doi":"10.1109/ISHCE.2018.8521221","DOIUrl":"https://doi.org/10.1109/ISHCE.2018.8521221","url":null,"abstract":"Article presents a model for realization of glow discharge at pressure below 4 Pa due to organization of supersonic gas flow in limited region of electrode gap. A model of flow regime of a supersonic flow in a vacuum chamber is described. Results of experiments on realization of a glow discharge at pressure below 4 Pa due to organization of a transverse supersonic gas flow are shown.","PeriodicalId":264995,"journal":{"name":"2018 20th International Symposium on High-Current Electronics (ISHCE)","volume":"476 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117012105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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