Investigation of the effect of blocking potential on the static breakdown voltage and discharge initiation in pseudospark switches

Bochkov, V.D.; Колесников, А. В.; Korolev, Yu. D.; Rabotkin, V. G.; Frantz, O.B.; Shemyakin, I. A.

doi:10.1109/27.402348

Cited by 41 publications

(11 citation statements)

References 7 publications

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“…In other words, the electrode can play a part of a blocking electrode. In general, the blocking electrode is intended to suppress the electron prebreakdown flow in the main gap of the switch [7]. For the case under discussion, the electron flow is suppressed since the electrons from the cavity are readily extracted to the electrode due to parasitic current.…”

Section: Typical Electric Circuits Used In the Switches With The mentioning

confidence: 99%

“…Another modification of the trigger system is shown in Fig. 2 [5], [7]. The auxiliary glow discharge here is powered by the positive voltage .…”

Section: Typical Electric Circuits Used In the Switches With The mentioning

confidence: 99%

“…Electrode system of the switch and the electric circuit with powering the auxiliary discharge by positive voltage[5]-[7]. R = 850 k, R = 0:1-1 k, and V = 1:5-3 kV.…”

mentioning

confidence: 99%

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

Korolev¹,

Geyman²,

Франц³

et al. 2001

IEEE Trans. Plasma Sci.

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Different electric circuits for triggering the switch with a trigger unit based on an auxiliary glow discharge are discussed. Most attention is concentrated on the recent experimental results on low voltage triggering of the switch and on the mechanisms for the main discharge initiation under the action of the trigger pulse. Due to modifications in the trigger electric circuit, the switch is triggered starting from a voltage of 50 V at a current level in the trigger circuit of 10 mA. With a voltage of 200-250 V and a trigger current of about 0.25 A, the delay time to triggering does not exceed 200 ns.Index Terms-Anode voltage drop region, cathode voltage drop region, hollow cathode pulsed discharge, pseudospark switch, steady state glow discharge.

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Section: Typical Electric Circuits Used In the Switches With The mentioning

confidence: 99%

“…Another modification of the trigger system is shown in Fig. 2 [5], [7]. The auxiliary glow discharge here is powered by the positive voltage .…”

Section: Typical Electric Circuits Used In the Switches With The mentioning

confidence: 99%

See 1 more Smart Citation

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

Korolev¹,

Geyman²,

Франц³

et al. 2001

IEEE Trans. Plasma Sci.

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“…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. 7,35 Hence, choosing the switch design and the range of operating pressure implies a compromise between the above factors. Just for the reason to overcome the above-mentioned contradiction, the design of the cavity C with two baffles is used.…”

Section: Principle Of Thyratron Operation As Applied To the Propomentioning

confidence: 99%

Triggering of cold-cathode thyratron in electric circuit with grounded grid

et al. 2017

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Dependence of pre-breakdown time on ionization processes in a pseudospark discharge AIP Advances 7, 115005 (2017); https://doi.org/10.1063/1.5003242Development of high-power gas discharge and electronic vacuum devices for pulsed electrophysic. This paper deals with the investigations of the sealed-off hold-cathode thyratron (pseudospark switch) TPI1-10k/50, which is commercially produced by the Pulsed Technology Ltd., Ryazan, Russia. The trigger unit of the switch is based on a low-current auxiliary glow discharge. The new method for the switch triggering is proposed. The essence of the method is that the thyratron grid and the hollow cathode of the auxiliary discharge has to be grounded and the trigger pulse is applied to the ring anode of the trigger unit. In the proposed method, an undesirable high-voltage spike at the thyratron grid, which can appear with a usage of the other methods of triggering, is absent. It is shown that to trigger the thyratron a critical pulsed current to the main cathode cavity at a level of 0.8 A and higher should be provided. When the current exceeds the critical value, the jitter in the delay time to triggering falls in a range of 10 ns. This means that the method of triggering can be used in a variety of applications that require a low jitter in the delay time. © 2017 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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“…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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Investigation of the effect of blocking potential on the static breakdown voltage and discharge initiation in pseudospark switches

Cited by 41 publications

References 7 publications

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

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

Triggering of cold-cathode thyratron in electric circuit with grounded grid

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

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