Supershort avalanche electron beam in SF6 and krypton
| Parent link: | Physical Review Special Topics - Accelerators and Beams: Scientific Journal Vol. 19, iss. 3.— 2016.— [030402, 7 p.] |
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| מחבר תאגידי: | |
| מחברים אחרים: | , , , , , , , , |
| סיכום: | Title screen Runaway electrons play an important role in the avalanche formation in nanosecond- and subnanosecond- pulse discharges. In this paper, characteristics of a supershort avalanche electron beam (SAEB) generated at the subnanosecond and nanosecond breakdown in sulfur hexafluoride (SF6) in an inhomogeneous electric field were studied. One pulser operated at negative polarity with voltage pulse amplitude of ?130??kV and rise time of 0.3 ns. The other pulser operated at negative polarity with voltage pulse amplitude of 70 kV and rise time of ?1.6??ns. SAEB parameters in SF6 are compared with those obtained in krypton (Kr), nitrogen (N2), air, and mixtures of SF6 with krypton or nitrogen. Experimental results showed that SAEB currents appeared during the rise-time of the voltage pulse for both pulsers. Moreover, amplitudes of the SAEB current in SF6 and Kr approximately ranged from several to tens of milliamps at atmospheric pressure, which were smaller than those in N2 and air (ranging from hundreds of milliamps to several amperes). Furthermore, the concentration of SF6 additive could significantly reduce the SAEB current in N2?SF6 mixture, but it slightly affected the SAEB current in Kr?SF6 mixture because of the atomic/molecular ionization cross section of the gas had a much greater impact on the SAEB current rather than the electronegativity. Режим доступа: по договору с организацией-держателем ресурса |
| שפה: | אנגלית |
| יצא לאור: |
2016
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| נושאים: | |
| גישה מקוונת: | http://dx.doi.org/10.1103/PhysRevAccelBeams.19.030402 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650097 |
MARC
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| 200 | 1 | |a Supershort avalanche electron beam in SF6 and krypton |f C. Zhang [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 32 tit.] | ||
| 330 | |a Runaway electrons play an important role in the avalanche formation in nanosecond- and subnanosecond- pulse discharges. In this paper, characteristics of a supershort avalanche electron beam (SAEB) generated at the subnanosecond and nanosecond breakdown in sulfur hexafluoride (SF6) in an inhomogeneous electric field were studied. One pulser operated at negative polarity with voltage pulse amplitude of ?130??kV and rise time of 0.3 ns. The other pulser operated at negative polarity with voltage pulse amplitude of 70 kV and rise time of ?1.6??ns. SAEB parameters in SF6 are compared with those obtained in krypton (Kr), nitrogen (N2), air, and mixtures of SF6 with krypton or nitrogen. Experimental results showed that SAEB currents appeared during the rise-time of the voltage pulse for both pulsers. Moreover, amplitudes of the SAEB current in SF6 and Kr approximately ranged from several to tens of milliamps at atmospheric pressure, which were smaller than those in N2 and air (ranging from hundreds of milliamps to several amperes). Furthermore, the concentration of SF6 additive could significantly reduce the SAEB current in N2?SF6 mixture, but it slightly affected the SAEB current in Kr?SF6 mixture because of the atomic/molecular ionization cross section of the gas had a much greater impact on the SAEB current rather than the electronegativity. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review Special Topics - Accelerators and Beams |o Scientific Journal | ||
| 463 | |t Vol. 19, iss. 3 |v [030402, 7 p.] |d 2016 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a импульсы | |
| 610 | 1 | |a разряд | |
| 610 | 1 | |a генераторы | |
| 701 | 1 | |a Zhang |b C. |g Cheng | |
| 701 | 1 | |a Tarasenko |b V. F. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1946- |g Victor Fedotovich |3 (RuTPU)RU\TPU\pers\32090 |9 16129 | |
| 701 | 1 | |a Gu |b J. |g Jianwei | |
| 701 | 1 | |a Baksht |b E. Kh. |g Evgeny Khaimovich | |
| 701 | 1 | |a Beloplotov |b D. V. | |
| 701 | 1 | |a Burachenko |b A. G. |g Aleksandr Gennadjevich | |
| 701 | 0 | |a Yan Ping | |
| 701 | 1 | |a Lomaev |b M. I. |g Mikhail Ivanovich | |
| 701 | 0 | |a Shao Tao | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Институт неразрушающего контроля |b Кафедра промышленной и медицинской электроники |3 (RuTPU)RU\TPU\col\18719 |9 27169 |
| 801 | 2 | |a RU |b 63413507 |c 20200828 |g RCR | |
| 856 | 4 | |u http://dx.doi.org/10.1103/PhysRevAccelBeams.19.030402 | |
| 942 | |c CF | ||