Theoretical simulation of high-voltage discharge with runaway electrons in sulfur hexafluoride at atmospheric pressure

Matter and Radiation at Extremes - Tập 1 - Trang 264-268 - 2016
Andrey V. Kozyrev1, Vasily Yu. Kozhevnikov1,2, Natalia S. Semeniuk1,2
1National Research Tomsk State University, Tomsk, 634050, Russia
2Institute of High Current Electronics, Russian Academy of Sciences, SB, Tomsk 634055, Russia

Tóm tắt

The results of theoretical simulation of runaway electron generation in high-pressure pulsed gas discharge with inhomogeneous electric field are presented. Hydrodynamic and kinetic approaches are used simultaneously to describe the dynamics of different components of low-temperature discharge plasma. Breakdown of coaxial diode occurs in the form of a dense plasma region expanding from the cathode. On this background there is a formation of runaway electrons that are initiated by the ensemble of plasma electrons generated in the place locally enhanced electric field in front of dense plasma. It is shown that the power spectrum of fast electrons in the discharge contains electron group with the so-called “anomalous” energy.

Tài liệu tham khảo

2012, Repetitive nanosecond-pulse discharge in a highly nonuniform electric field in atmospheric air: X-ray emission and runaway electron generation, Laser Part. Beams, 30, 369, 10.1017/s0263034612000201 2012, Picoseconds’ beams of runaway electrons in air, Plasma Phys. Rep., 38, 29, 10.1134/s1063780x11110055 2010, Production of runaway electrons by negative streamer discharges, J. Geophys. Res., 115, A00E32, 10.1029/2009ja014774 2015, 1D simulation of runaway electrons generation in pulsed high-pressure gas discharge, Europhys. Lett., 112, 15001, 10.1209/0295-5075/112/15001 2015, Zero-dimensional theoretical model of subnanosecond high-pressure gas discharge, IEEE Trans. Plasma Sci., 43, 4077, 10.1109/tps.2015.2496218 2012, Conductivity of nanosecond discharges in nitrogen and sulfur hexafluoride studied by particle-in-cell simulations, J. Appl. Phys., 111, 123303, 10.1063/1.4730373 2012, Numerical simulation of runaway electrons generation in sulfur hexafluoride, J. Appl. Phys., 111, 013305, 10.1063/1.3676256 1988, Numerical simulation of streamers in SF6, J. Appl. Phys., 63, 1355, 10.1063/1.339963 2009, A Compendium of Partial Differential Equation Models. Method of Lines Analysis with Matlab 1994, Weighted essentially non-oscillatory schemes, J. Comput. Phys., 115, 200, 10.1006/jcph.1994.1187 1995, An Introduction to Computational Fluid Dynamics. The Finite Volume Method 2000, Electron interactions with SF6, J. Phys. Chem. Ref. Data, 29, 267, 10.1063/1.1288407 2014, High order maximum principle preserving semi-Lagrangian finite difference WENO schemes for the Vlasov equation, J. Comput. Phys., 273, 618, 10.1016/j.jcp.2014.05.033 1975, A generalized empirical equation for the transmission coefficient of electrons, Nucl. Instrum. Methods, 127, 429, 10.1016/s0029-554x(75)80016-4 1990, High-voltage nanosecond discharge in a dense gas at high overvoltage with runaway electrons, Sov. Phys. Usp., 33, 521, 10.1070/pu1990v033n07abeh002606 1965, Acceleration of particles by edge electric field of moving plasma tip, JETP Lett., 1, 44 2016, Theoretical simulation of the picosecond runaway electron beam in coaxial diode filled with SF6 at atmospheric pressure, Europhys. Lett., 114, 45001, 10.1209/0295-5075/114/45001
Thông tin
Thông tin xuất bản

Matter and Radiation at Extremes

Tập 1

264-268

Thông tin tác giả