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Measurement of runaway electron beam current in nanosecond-pulse discharges by a Faraday cup

  • Cheng Zhang (a1) (a2) (a3), Zehui Liu (a1) (a2), Jintao Qiu (a1) (a2), Han Bai (a1) (a2), Fei Kong (a1) (a3) and Tao Shao (a1) (a2) (a3)...

Abstract

Measurement of runaway electron beam (REB) is essential to investigate behavior of runaway electrons produced in nanosecond-pulse gas discharge. A Faraday cup is designed to measure the REB current in nanosecond-pulse discharge when the applied dV/dt is 75 kV/ns. The Faraday cup considers the impendence match with the oscilloscope and the design of the receiving part. The experimental results show that the measured REB current has a rise time of 348 ps and a full width at half maximum of 510 ps. The comparison of the measurement results by the Faraday cup and a REB collector confirm that the Faraday cup is able to measure REB current in nanosecond-pulse discharge. Furthermore, consecutive waveforms of the REB currents show stable results by using the designed Faraday cup. In addition, effects of the interelectrode gap, gas pressure, and cathode material on the REB current are investigated by the designed Faraday cup, and the measurement results provide characteristics of REB current under different conditions. The REB current decreases when the gap spacing or gas pressure increases. REB current increases with the cathode diameter. It indicates that the high-energy electrons are generated not only at the edge of the cathode but also on the side surface of the cathode.

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Corresponding author

Author for correspondence: Tao Shao, Institute of Electrical Engineering, Chinese Academy of Sciences, PO Box 2703, 100190 Beijing, China, E-mail: st@mail.iee.ac.cn

References

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Babaeva, NY, Zhang, C, Qiu, J, Hou, X, Tarasenko, VF and Shao, T (2017) The role of fast electrons in diffuse discharge formation: Monte Carlo simulation. Plasma Sources Science and Technology 26, 085008.
Babich, LP and Loiko, TV (2010) Peculiarities of detecting pulses of runaway electrons and X-rays generated by high-voltage nanosecond discharges in open atmosphere. Plasma Physics Reports 36, 263270.
Chang, C, Liu, C, Chen, C, Sun, J, Liu, Y, Guo, L, Cao, Y, Wang, Y and Song, Z-M (2015) The influence of ions and the induced secondary emission on the nanosecond high-gradient microwave breakdown at metal surface. Physics of Plasmas 22, 063511.
Chang, C, Verboncoeur, J, Wei, F, Xie, J, Sun, J, Liu, Y, Liu, C and Wu, C (2017) Nanosecond discharge at the interfaces of flat and periodic ripple surfaces of dielectric window with air at varied pressure. IEEE Transactions on Dielectrics and Electrical Insulation 24, 375381.
Dasilva, C, Millan, R, Mcgaw, D, Yu, CA, Putter, A, Labelle, J and Dwyer, J (2017) Laboratory measurements of X-ray emissions from centimeter-long streamer corona discharges. Research Letters 44, 11174.
Gu, J, Zhang, C, Wang, R, Yan, P and Shao, T (2016) Improvement of spatial uniformity of nanosecond-pulse diffuse discharges in a multi-needle-to-plane gap. Plasma Science and Technology 18, 230235.
Hou, X, Zhang, C, Qiu, J, Gu, J, Wang, R and Shao, T (2017) Properties of temporal X-ray in nanosecond-pulse discharges with a tube-to-plane gap at atmospheric pressure. Acta Physica Sinica 66, 105204.
Hu, J and Rovey, JL (2011) Faraday cup with nanosecond response and adjustable impedance for fast electron beam characterization. Review of Scientific Instruments 82, 073504.
Kozyrev, A, Kozhevnikov, V, Lomaev, M, Sorokin, D, Semeniuk, N and Tarasenko, V (2016) Theoretical simulation of the picosecond runaway-electron beam in coaxial diode filled with SF6 at atmospheric pressure. EPL 114, 45001.
Kumar, R, Chandra, R, Mitra, S, Beg, MD, Sharma, DK, Shar-ma, A and Mittal, KC (2014) A sub-nanosecond rise time intense electron beam source. Journal of Instrumentation 9, 04017.
Levko, D, Krasik, YE and Tarasenko, VF (2012a) Present status of runaway electron generation in pressurized gases during nanosecond discharges. International Review of Physics 6, 165195.
Levko, D, Yatom, S, Vekselman, V, Gleizer, JZ, Gurovich, VT and Krasik, YE (2012b) Numerical simulations of runaway electron generation in pressurized gases. Journal of Applied Physics 111, 013303.
Li, L, Liu, Y, Ge, Y, Bin, Y, Huang, J and Lin, F (2013) Generating diffuse discharge via repetitive nanosecond pulses and line-line electrodes in atmospheric air. Review of Scientific Instruments 84, 105105.
Li, L, Xiong, J, Cheng, Y, Peng, M and Pan, Y (2017) Geometric factors affecting capillary discharge jet length in atmospheric pressure air. Review of Scientific Instruments 88, 065109.
Marode, E, Dessante, P and Tardiveau, P (2016) 2D positive streamer modelling in NTP air under extreme pulse fronts. What about runaway electrons?. Plasma Sources Science and Technology 25, 064004.
Mesyats, GA (2017) Ecton processes in the generation of pulsed runaway electron beams in a gas discharge. Plasma Physics Reports 43, 952956.
Mesyats, GA, Yalandin, MI, Sharypov, KA, Shpak, VG and Shunailov, SA (2008) Generation of a picosecond runaway electron beam in a gas gap with a nonuniform field. IEEE Transactions on Plasma Science 36, 24972507.
Mesyats, GA, Reutova, AG, Sharypov, KA, Shpak, VG, Shunailov, SA and Yalandin, MI (2011) On the observed energy of runaway electron beams in air. Laser and Particle Beams 29, 425435.
Oreshkin, EV, Barengolts, SA, Oreshkin, VI and Mesyats, GA (2017) Parameters of a runaway electron avalanche. Physics of Plasmas 24, 103505.
Shao, T, Zhang, C, Niu, Z, Yan, P, Tarasenko, VF, Baksht, EKh, Burahenko, AG and Shut'ko, YV (2011) Diffuse discharge, runaway electron, and X-ray in atmospheric pressure air in an inhomogeneous electrical field in repetitive pulsed modes. Applied Physics Letters 98, 021503.
Shao, T, Tarasenko, VF, Zhang, C, Burachenko, AG, Rybka, DV, Kostyrya, ID, Lomaev, MI, Baksht, EK and Yan, P (2013) Application of dynamic displacement current for diagnostics of sub-nanosecond breakdowns in an inhomogeneous electric field. Review of Scientific Instruments 84, 053506.
Shao, T, Tarasenko, VF, Yang, W, Beloplotov, DV, Zhang, C, Lomaev, MI, Yan, P and Sorokin, DA (2014) Anode and cathode spots in high-voltage nanosecond-pulse discharge initiated by runaway electrons in air. Chinese Physics Letters 31, 084301.
Shao, T, Wang, R, Zhang, C and Yan, P (2018) Atmospheric-pressure pulsed discharges and plasmas: mechanism, characteristics and applications. High Voltage 3, 1420.
Sharypov, KA, Shpak, VG, Shunailov, SA, Ul'masculov, MR and Yalandin, MI (2013) Time-domain reflectometry of high-voltage nonlinear loads with picosecond resolution. Review of Scientific Instruments 84, 055110.
Starikovskaia, SM, Anikin, NB, Pancheshnyi, SV, Zatsepin, DV and Starikovskii, AY (2001) Pulsed breakdown at high overvoltage: development, propagation and energy branching. Plasma Sources Science and Technology 10, 344355.
Tarasenko, VF and Rybka, DV (2016) Methods for recording the time profile of single ultrashort pulses of electron beams and discharge currents in real-time mode. High Voltage 1, 4351.
Tarasenko, VF, Shunailov, SA, Shpak, VG and Kostyrya, ID (2005) Supershort electron beam from air filled diode at atmospheric pressure. Laser and Particle Beams 23, 545551.
Tarasenko, VF, Baksht, EK, Burachenko, AG, Kostyrya, ID, Lomaev, MI and Rybka, DV (2008) Generation of supershort avalanche electron beams and formation of diffuse discharges in different gases at high pressure. Plasma Devices and Operations 16, 267298.
Tarasenko, VF, Baksht, EK, Beloplotov, DV, Burachenko, A, Kostyrya, ID, Lomaev, MI, Rybka, DV and Sorokin, DA (2015) On the parameters of runaway electron beams and on electrons with an “anomalous” energy at a subnanosecond breakdown of gases at atmospheric pressure. JETP Letters 102, 350354.
Tarasenko, VF, Lomaev, MI, Beloplotov, DV and Sorokin, DA (2016) Runaway electrons during subnanosecond breakdowns in high-pressure gases. High Voltage 1, 181191.
Tarasenko, VF, Zhang, C, Kozyrev, AV, Sorokin, DA, Hou, X, Semeniuk, NS, Burachenko, AG, Yan, P, Kozhevnikov, YV, Baksht, EK and Lomaev, MI (2017) Influence of electrode spacing and gas pressure on parameters of a runaway electron beam generating during the nanosecond breakdown in SF6 and nitrogen. High Voltage 2, 4955.
Tarasova, LV, Khudyakova, LN, Loiko, TV and Tsukerman, VA (1974) The fast electrons and X-ray radiation of nanosecond pulsed discharges in gases under 0.1–760 Torr. Technical Physics 44, 564.
Yatom, S, Shlapakovski, A, Beilin, L, Stambulchik, E, Tskhai, S and Krasik, YE (2016) Recent studies on nanosecond-timescale pressurized gas discharges. Plasma Sources Science and Technology 25, 064001.
Zhang, C, Shao, T, Yu, Y, Niu, Z, Yan, P and Zhou, Y (2010) Detection of X-ray emission in a nanosecond discharge in air at atmospheric pressure. Review of Scientific Instruments 81, 123501.
Zhang, C, Tarasenko, VF, Shao, T, Beloplotov, DV, Lomaev, MI, Sorokin, DA and Yan, P (2014) Generation of super-short avalanche electron beams in SF6. Laser and Particle Beams 32, 331341.
Zhang, C, Tarasenko, VF, Gu, J, Baksht, EK, Wang, R, Yan, P and Shao, T (2015) A comparison between spectra of runaway electron beams in SF6 and air. Physics of Plasmas 22, 123516.
Zhang, C, Tarasenko, VF, Gu, J, Baksht, EK, Beloplotov, DV, Burachenko, AG, Yan, P, Lomaev, MI and Shao, T (2016) Supershort avalanche electron beam in SF6 and krypton. Physical Review Accelerators and Beams 19, 030402.

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