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Тарасенко, В. Ф.; Orlovskiĭ, V. M.; Shunaĭlov, S. A.

doi:10.1023/a:1025450230879

Cited by 52 publications

(36 citation statements)

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“…The main experimental results are presented in Figs.3-8 As it was determined previously [3][4][5][6], maximum parameters of SAEB are realized during formation of a volume discharge in a discharge gap. The present investigations confirmed this conclusion.…”

Section: Results Of Measurements Of Saeb Parametersmentioning

confidence: 64%

“…1 and 2. The design was similar to the one earlier described in [4][5][6][7]. The same way as in the most experimental studies devoted to formation of X-ray radiation and runaway electrons in the gas diodes, we used a flat anode and a small-size cathode in order to have an additional gain of electric field in the near-cathode region.…”

Section: The Experimental Set-ups and Techniquesmentioning

confidence: 99%

“…Such measurements of the beam current pulse duration gave the value less than 1 ns. Since 2003, an interest to investigation of e-beams generation in gas-filled diodes with high pressures has been rekindled (see the review [3][4][5] and papers [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], and Refs in [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]). In 2005, the advanced recording methods of electron beams and the use of digital oscilloscopes with wide bandwidth provided the measurements of the beam current duration with time resolution of ~ 100 ps.…”

Section: Introductionmentioning

confidence: 99%

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Supershort avalanche electron beams and x-ray in high-pressure nanosecond discharges

Тарасенко

Бакшт

Kostyrya

et al. 2008

J. Phys.: Conf. Ser.

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Section: Results Of Measurements Of Saeb Parametersmentioning

confidence: 64%

Section: The Experimental Set-ups and Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Supershort avalanche electron beams and x-ray in high-pressure nanosecond discharges

Тарасенко

Бакшт

Kostyrya

et al. 2008

J. Phys.: Conf. Ser.

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“…In the studies, foil and grid anodes were also used. With the foil anode, the characteristics of a supershort avalanche electron beam (SAEB) [5] were measured on the collector placed downstream of the foil. A more detailed description of studies on SAEB's can be found in [10][11][12][13].…”

Section: Experimental Procedures and Equipmentmentioning

confidence: 99%

“…Apparently, this is due to the subnanosecond time of the processes occurring in the REP DD gap and thus to the complexity of nanosecond and subnanosecond high--voltage pulsers and measurements of discharge and runaway e-beam characteristics. In five recent years, interest in this discharge mode has been rekindled [5][6][7][8][9][10][11][12][13]. It was found that atmospheric-pressure discharges in an inhomogeneous electric field feature a number of unique properties; in particular the specific input power can reach ≈ 800 MW/cm 3 at the gap center [6].…”

Section: Introductionmentioning

confidence: 99%

Optical Properties of Runaway Electron Preionized Diffuse Discharges and Their Applications for Excilamps and Lasers

et al. 2009

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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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Cited by 52 publications

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Supershort avalanche electron beams and x-ray in high-pressure nanosecond discharges

Supershort avalanche electron beams and x-ray in high-pressure nanosecond discharges

Optical Properties of Runaway Electron Preionized Diffuse Discharges and Their Applications for Excilamps and Lasers

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

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