Abstract
We report the experimental results with nanosecond-pulse discharges formed in the air gap between a flat electrode and a sharp electrode. The appearance of anode and cathode spots on the electrodes is studied experimentally. It is considered that bright spots on the flat cathode with positive polarity of the sharp electrode are formed due to the explosive electron emission on the cathode and the dynamic displacement current in the gap. It is also shown that with negative polarity of the sharp electrode, bright spots on the flat anode are formed after changing the polarity of the flat electrode due to the discharge oscillatory mode. Under these conditions, the explosive electron emission firstly forms on the sharp cathode. With negative polarity of the sharp electrode of the subnanosecond-pulse pulser, the runaway electron beam current is measured behind the anode foil with a time resolution of no more than 100 ps.
| Original language | English |
|---|---|
| Article number | 085201 |
| Journal | Chinese Physics Letters |
| Volume | 31 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2014 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Anode and cathode spots in high-voltage nanosecond-pulse discharge initiated by runaway electrons in air. / Shao, Tao; Tarasenko, Victor F.; Yang, Wen Jin; Beloplotov, Dmitry V.; Zhang, Cheng; Lomaev, Mikhail I.; Yan, Ping; Sorokin, Dmitry A.
In: Chinese Physics Letters, Vol. 31, No. 8, 085201, 01.08.2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Anode and cathode spots in high-voltage nanosecond-pulse discharge initiated by runaway electrons in air
AU - Shao, Tao
AU - Tarasenko, Victor F.
AU - Yang, Wen Jin
AU - Beloplotov, Dmitry V.
AU - Zhang, Cheng
AU - Lomaev, Mikhail I.
AU - Yan, Ping
AU - Sorokin, Dmitry A.
PY - 2014/8/1
Y1 - 2014/8/1
N2 - We report the experimental results with nanosecond-pulse discharges formed in the air gap between a flat electrode and a sharp electrode. The appearance of anode and cathode spots on the electrodes is studied experimentally. It is considered that bright spots on the flat cathode with positive polarity of the sharp electrode are formed due to the explosive electron emission on the cathode and the dynamic displacement current in the gap. It is also shown that with negative polarity of the sharp electrode, bright spots on the flat anode are formed after changing the polarity of the flat electrode due to the discharge oscillatory mode. Under these conditions, the explosive electron emission firstly forms on the sharp cathode. With negative polarity of the sharp electrode of the subnanosecond-pulse pulser, the runaway electron beam current is measured behind the anode foil with a time resolution of no more than 100 ps.
AB - We report the experimental results with nanosecond-pulse discharges formed in the air gap between a flat electrode and a sharp electrode. The appearance of anode and cathode spots on the electrodes is studied experimentally. It is considered that bright spots on the flat cathode with positive polarity of the sharp electrode are formed due to the explosive electron emission on the cathode and the dynamic displacement current in the gap. It is also shown that with negative polarity of the sharp electrode, bright spots on the flat anode are formed after changing the polarity of the flat electrode due to the discharge oscillatory mode. Under these conditions, the explosive electron emission firstly forms on the sharp cathode. With negative polarity of the sharp electrode of the subnanosecond-pulse pulser, the runaway electron beam current is measured behind the anode foil with a time resolution of no more than 100 ps.
UR - http://www.scopus.com/inward/record.url?scp=84905842890&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905842890&partnerID=8YFLogxK
U2 - 10.1088/0256-307X/31/8/085201
DO - 10.1088/0256-307X/31/8/085201
M3 - Article
VL - 31
JO - Chinese Physics Letters
JF - Chinese Physics Letters
SN - 0256-307X
IS - 8
M1 - 085201
ER -