On formation of subnanosecond electron beams in air under 
atmospheric pressure

Тарасенко, В. Ф.; Skakun, V. S.; Kostyrya, I. D.; Alekseev, S. B.; Orlovskiĭ, V. M.

doi:10.1017/s0263034604221152

Cited by 51 publications

(34 citation statements)

References 7 publications

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“…The discharge current was measured with a current shunt composed of chip resistors. The output section of the SLEP-150M accelerator, including the additional transmission line, gas diode with a thin-walled tubular cathode of diameter 6 mm (Tarasenko et al, 2004), and collector with a time resolution of ∼80 ps, is shown in Figure 4.…”

Section: Av Kozyrev Et Al 186mentioning

confidence: 99%

Reconstruction of electron beam energy spectra for vacuum and gas diodes

et al. 2015

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In this paper, the spectra of electron beams produced in vacuum and gas diodes were analyzed to study the capabilities and limitations of their reconstruction from beam attenuation in foils of different thickness. The electron energy distributions were calculated using the Tikhonov regularization for Fredholm integral equations on minimum a priori assumptions. The spectra reconstructed in the study were those of electron beams, including a supershort avalanche electron beam, produced in experiments on a DUET plasma-cathode electron accelerator and SLEP-150M accelerator.

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Section: Av Kozyrev Et Al 186mentioning

confidence: 99%

Reconstruction of electron beam energy spectra for vacuum and gas diodes

et al. 2015

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“…In recent studies [16][17][18][19][20][21][22][23][24][25][26][27][28][29] (see also reviews [30,31]), supershort avalanche electron beams (SAEB [19]) were obtained in gas-filled diodes behind the metal foil. Their amplitude varied from several tens to several hundreds of amperes, and the pulse duration at half maximum was several hundreds of picoseconds.…”

Section: Introductionmentioning

confidence: 99%

“…The maximum SAEB amplitudes were registered in a volume discharge in a gap [19][20][21][22][23][24][25][26]. The duration of the current pulse running through the volume discharge plasma significantly exceeded the SAEB duration.…”

Section: Introductionmentioning

confidence: 99%

“…The duration of the current pulse running through the volume discharge plasma significantly exceeded the SAEB duration. The volume discharge was formed without additional preionization source and was observed in various gases [19][20][21][22][23][24][25][26][27][28][29]. In [19], this mode of the discharge was called VADIEB (volume avalanche discharge initiated by the electron beam).…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the studies indicated above, we also mention studies [39][40][41][42][43]. From the viewpoint of formation of runaway electron beams and x-ray radiation in nanosecond volume discharges at atmospheric pressure, the most important results are the following: 1) A volume discharge is formed in air at atmospheric pressure and in other gases when nanosecond high-voltage pulses are applied without additional preionization source [4,5,[19][20][21][22][23][24][25][26][27][28][29][30][31]. In this case, the gap with a nonuniform electric field is used.…”

Section: Introductionmentioning

confidence: 99%

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On the formation of nanosecond volume discharges, subnanosecond runaway electron beams, and x-ray radiation in gases at elevated pressure

Тарасенко

Kostyrya

2005

Russ Phys J

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Formation of a volume discharge in air at atmospheric pressure upon application of nanosecond high-voltage pulses

Kostyrya

Тарасенко

2004

Russ Phys J

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Volume self-sustained discharges in gases at high pressure are formed with the use of pre-ionization sources and are widely used for pulsed laser pumping [1,2]. In a pulsed nanosecond discharge [3,4], the conditions can be realized in which the time of discharge channel formation is less than the voltage pulse duration. Then the volume discharge is formed under conditions of multielectron initiation when the initial voltage exceeds the static breakdown voltage.In [5][6][7][8][9], the volume pulsed discharge was initiated in air and other gases at atmospheric pressure without preionization source. To this end, nanosecond high-voltage pulses (~100 kV and more) with a leading pulse edge duration of ~1 ns and less were applied to the gap in [5][6][7][8][9]. The anode was flat, and the cathode had a small radius of curvature. With increase in the interelectrode gap, a pulse corona discharge was observed under these conditions. The main difference between volume and corona pulsed discharges is that in the corona discharge, the gas is ionized only in a part of the gap with the highest electric field strength. In the volume discharge, the gas is ionized in the entire gap, which allows high current densities on the anode (~3 kA/cm 2 ), high specific deposited power (~1 J/cm 3 ), and high specific pump power density (~400 MW/cm 3 ) to be obtained [6][7][8][9]. The diffusion discharge with a brighter central channel was realized in [10] when the voltage pulse duration increased up to 170 ns and the leading edge pulse duration increased up to 10 ns. This means that the discharge constriction is observed with increasing pulse duration. However, in [5-10] much attention was given to the study of the discharge initiated in gaps with the potential cathode having a small radius of curvature, and the influence of voltage pulse polarity and a decrease in the strength of electric field applied to the gap on the formation of the volume discharge was not investigated. Only in [9] the volume discharge was realized in air at atmospheric pressure and near the tip anode (the electrode of a shear discharger). The volume discharges initiated in comparatively short interelectrode gaps or with preionization sources were investigated in [1][2][3][4].The present study investigates the influence of polarity and radius of curvature of the electrodes on the formation of the volume pulsed discharge without pre-ionization source under application of nanosecond voltage pulses of comparatively high amplitude (~100 kV).In our experiments we used the pulse generator of the ARINA x-ray apparatus [4]. The open-circuit gap voltage was about 150 kV and the leading pulse edge duration was less than 1 ns. The voltage pulse polarity could be both positive and negative. The pulse duration at half-maximum was ~2 ns for the volume discharge. Three types of the potential metal electrodes were used, including a sphere 40 mm in diameter (electrode No. 1), a tube 6 mm in diameter fabricated from a foil 50 µm thick (electrode No. 2), and a tip (electrode No. 3). The e...

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On formation of subnanosecond electron beams in air under atmospheric pressure

Cited by 51 publications

References 7 publications

Reconstruction of electron beam energy spectra for vacuum and gas diodes

Reconstruction of electron beam energy spectra for vacuum and gas diodes

On the formation of nanosecond volume discharges, subnanosecond runaway electron beams, and x-ray radiation in gases at elevated pressure

Formation of a volume discharge in air at atmospheric pressure upon application of nanosecond high-voltage pulses

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