Low-voltage triggering for a pseudospark switch with an auxiliary glow discharge

Korolev, Yu. D.; Geyman, V. G.; Франц, О. Б.; Shemyakin, I. A.; Frank, K.; Bickes, C.; Ernst, U.; Iberler, M.; Urban, J.; Bochkov, V.D.; Dyagilev, V.M.; Ushich, V.G.

doi:10.1109/27.964477

Cited by 26 publications

(12 citation statements)

References 6 publications

(11 reference statements)

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“…The thickness of the plate and the diameter of the apertures have to be chosen in such a manner that the positive column plasma are not able to penetrate into the gap d e . In this situation, the positive column boundary is located inside the anode cavity A, the selfsustained discharge in the gap d e does not develop and the system operates as a source of electron beam [2,47,48].…”

Section: Typical Systems For Obtaining Low-pressure Dischargesmentioning

confidence: 99%

Low-pressure discharges with hollow cathode and hollow anode and their applications

Korolev¹,

Koval²

2018

J. Phys. D: Appl. Phys.

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The review relates to low-pressure discharges with a hollow cathode and a hollow anode. The term ‘low pressure’ implies that a neutral particle density is extremely small and the electron free path for ionization is in excess of the characteristic size for the discharge gap. On the other hand, the neutral particles still play an essential role in forming the gas-discharge plasma. Thus, the discharge regimes keep an intermediate position between the classical low-pressure discharge with avalanche ionization and pure vacuum discharge that burns in the cathode metal vapor. New approaches to the interpretation of the discharge formation mechanism at the stage of delay time to breakdown, and for the discharge sustaining features at the later temporal stages, are discussed. The developed approaches offer the possibility of interpreting the discharge behavior in the systems to obtain a uniform plasma in a large volume of the cathode or anode cavity, in the sources of electron and ion beams based on the plasma cathode and in the high-current pseudospark switches.

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Section: Typical Systems For Obtaining Low-pressure Dischargesmentioning

confidence: 99%

Low-pressure discharges with hollow cathode and hollow anode and their applications

Korolev¹,

Koval²

2018

J. Phys. D: Appl. Phys.

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“…In these conditions, for both self-breakdown and external triggering of the switch, a considerable prebreakdown electron current is required to ignite a high-current discharge in the main gap. Different types of the trigger units have been developed to provide this prebreakdown current [6], [7]- [10]. 0093-3813 © 2015 IEEE.…”

Section: Schematic Design and Principle Of Triggeringmentioning

confidence: 99%

“…Besides that, it would be desirable to have a rather high operating pressure. On the other hand, these measures lead to appearance of a parasitic prebreakdown current from the anode A 1 to the main cathode cavity C due to which the static breakdown voltage of the switch decreases [10], [11]. Hence, choosing the switch design and the range of operating pressure implies a compromise between the above factors.…”

Section: Schematic Design and Principle Of Triggeringmentioning

confidence: 99%

Nanosecond Triggering for Sealed-Off Cold Cathode Thyratrons With a Trigger Unit Based on an Auxiliary Glow Discharge

Korolev

Landl

Geyman

et al. 2015

IEEE Trans. Plasma Sci.

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This paper deals with the investigations of ceramic-metal sealed-off pseudospark switches with an auxiliary glow discharge in the trigger unit. The switches are produced commercially by the Pulsed Technology Ltd., Ryazan, Russia. Attention is concentrated on the switch TPI1-10k/50 (pulsed current-10 kA and anode voltage-up to 50 kV). The schematic design of the devices and the principles of function are described. It is demonstrated that the switch is able to operate with an electric circuit corresponding to the classical hydrogen thyratron and to the thyratron with a grounded grid. In both cases, a delay time to triggering in the vicinity of 100 ns and a nanosecond jitter in the delay time are achievable.Index Terms-Auxiliary glow discharge, grounded grid thyratron, pseudospark switch, pulsed discharge with hollow cathode, trigger unit.

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“…Commonly, psuedosparks [7][8][9][10][11][12] are used as a high voltage, high current switch. Therefore, it is desirable to achieve a low delay time between the trigger and breakdown in the main gap.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Injection Speeds on the Discharge Characteristics and Minimization of Delay Time in a Pseudospark Discharge

Leathem¹,

Stoltz²,

Messmer³

et al. 2010

TOPPJ

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The study put forth demonstrates that the seed electrons average kinetic energy influences the discharge characteristics making it possible to maximize the rate of development of the virtual anode in a pseudospark, with a suitable choice of the neutral gas pressure as determined by the seed's average injection speed. This investigation also brings to light two distinct operating regimes; (1) mid-energy, where electron-impact ionization energy losses result in a decrease in the cross-section as the electrons travel downstream and (2) high-energy, where, in contrast, the ionization cross-section increases. In the latter case, both the fastest delay time and the neutral gas pressure producing this value have linear dependencies on the seed electrons energy resulting in a constant value of their product over the different injection speeds. The discharge is seeded by injecting a current pulse for a period of one nanosecond along the axis from the hollow cathode cavity back wall over a range of mean speeds corresponding to 100 to 900 V accelerations; the initial electric field is insufficient to enhance ionization throughout most of the hollow cathode backspace. Data is obtained through computer simulation using the two-dimensional kinetic plasma code OOPIC Pro. 51.50.+v, 52.75.Kq, 52.80.Tn.

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Low-voltage triggering for a pseudospark switch with an auxiliary glow discharge

Cited by 26 publications

References 6 publications

Low-pressure discharges with hollow cathode and hollow anode and their applications

Low-pressure discharges with hollow cathode and hollow anode and their applications

Nanosecond Triggering for Sealed-Off Cold Cathode Thyratrons With a Trigger Unit Based on an Auxiliary Glow Discharge

Influence of the Injection Speeds on the Discharge Characteristics and Minimization of Delay Time in a Pseudospark Discharge

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