Abstract
This paper presents new experimental data on the generation of runaway electron beams and X-rays in repetitively pulsed discharges in helium and air with an inhomogeneous electric field. Both negative and positive voltage pulses of duration 1-5 ns and amplitude in the incident wave up to 18 kV were applied to a 'tube-to-plane' gap at a pulse repetition frequency of up to 1 kHz. It is shown that at a helium pressure of several and tens of torrs, whatever the polarity of the main voltage pulse, an electron beam is generated on arrival of reflected negative voltage pulses in the gap. X-rays were detected over a wide pressure range of helium and air, including atmospheric pressure. The breakdown of atmospheric-pressure air gaps with a special cathode design at a rate of voltage rise of 1014 Vs was studied with subnanosecond and picosecond time resolution. At a voltage amplitude higher than 100 kV, a fast electron beam in atmospheric-pressure air was detected in the space downstream of the cathode, which was made of thin wires arranged parallel to a thin flat foil. The current of the fast electron beam downstream of the cathode depended strongly on the anode material.
| Original language | English |
|---|---|
| Article number | 6588565 |
| Pages (from-to) | 2931-2940 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Plasma Science |
| Volume | 41 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Electrons downstream of the cathode
- pulsed gas discharge
- runaway electrons
- X-rays
ASJC Scopus subject areas
- Condensed Matter Physics
- Nuclear and High Energy Physics
Cite this
New features of the generation of runaway electrons in nanosecond discharges in different Gases. / Tarasenko, Victor Fedotovich; Baksht, Evgenii K.; Erofeev, Mikhail V.; Kostyrya, Igor D.; Rybka, Dmitry V.; Shutko, Yulia V.
In: IEEE Transactions on Plasma Science, Vol. 41, No. 10, 6588565, 2013, p. 2931-2940.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - New features of the generation of runaway electrons in nanosecond discharges in different Gases
AU - Tarasenko, Victor Fedotovich
AU - Baksht, Evgenii K.
AU - Erofeev, Mikhail V.
AU - Kostyrya, Igor D.
AU - Rybka, Dmitry V.
AU - Shutko, Yulia V.
PY - 2013
Y1 - 2013
N2 - This paper presents new experimental data on the generation of runaway electron beams and X-rays in repetitively pulsed discharges in helium and air with an inhomogeneous electric field. Both negative and positive voltage pulses of duration 1-5 ns and amplitude in the incident wave up to 18 kV were applied to a 'tube-to-plane' gap at a pulse repetition frequency of up to 1 kHz. It is shown that at a helium pressure of several and tens of torrs, whatever the polarity of the main voltage pulse, an electron beam is generated on arrival of reflected negative voltage pulses in the gap. X-rays were detected over a wide pressure range of helium and air, including atmospheric pressure. The breakdown of atmospheric-pressure air gaps with a special cathode design at a rate of voltage rise of 1014 Vs was studied with subnanosecond and picosecond time resolution. At a voltage amplitude higher than 100 kV, a fast electron beam in atmospheric-pressure air was detected in the space downstream of the cathode, which was made of thin wires arranged parallel to a thin flat foil. The current of the fast electron beam downstream of the cathode depended strongly on the anode material.
AB - This paper presents new experimental data on the generation of runaway electron beams and X-rays in repetitively pulsed discharges in helium and air with an inhomogeneous electric field. Both negative and positive voltage pulses of duration 1-5 ns and amplitude in the incident wave up to 18 kV were applied to a 'tube-to-plane' gap at a pulse repetition frequency of up to 1 kHz. It is shown that at a helium pressure of several and tens of torrs, whatever the polarity of the main voltage pulse, an electron beam is generated on arrival of reflected negative voltage pulses in the gap. X-rays were detected over a wide pressure range of helium and air, including atmospheric pressure. The breakdown of atmospheric-pressure air gaps with a special cathode design at a rate of voltage rise of 1014 Vs was studied with subnanosecond and picosecond time resolution. At a voltage amplitude higher than 100 kV, a fast electron beam in atmospheric-pressure air was detected in the space downstream of the cathode, which was made of thin wires arranged parallel to a thin flat foil. The current of the fast electron beam downstream of the cathode depended strongly on the anode material.
KW - Electrons downstream of the cathode
KW - pulsed gas discharge
KW - runaway electrons
KW - X-rays
UR - http://www.scopus.com/inward/record.url?scp=84885925862&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885925862&partnerID=8YFLogxK
U2 - 10.1109/TPS.2013.2278995
DO - 10.1109/TPS.2013.2278995
M3 - Article
VL - 41
SP - 2931
EP - 2940
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 10
M1 - 6588565
ER -