High-energy proton generation under surface discharge conditions

Muzyukin, I. L.; Vershinin, Yu. N.; Barakhvostov, S. V.

doi:10.1134/s1063785006030126

Cited by 3 publications

(1 citation statement)

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“…3-7, respectively. Similar to the spectra obtained earlier for different plasma sources [2], [3], these spectra consist of several peaks. The characteristic energies increase with ion charge.…”

Section: Methodssupporting

confidence: 50%

The Parameters of the Ion Flow of Vacuum-Spark Plasma

Muzukin

Uimanov

Zemskov

2009

IEEE Trans. Plasma Sci.

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In this paper, vacuum-spark plasmas with various pulse parameters were investigated. Two types of pulse generator were used to initiate the discharge. The pulse amplitude and duration were varied from 15 to 350 kV and from 100 to 400 ns, respectively. The electrode separation of the vacuum gap was varied from 2 to 15 mm. It has been found that the most probable energies of the ion-flow species increase with gap spacing. In addition, a dependence of the most probable energies of the ion-flow species on ion charge has been revealed.

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Section: Methodssupporting

confidence: 50%

The Parameters of the Ion Flow of Vacuum-Spark Plasma

Muzukin

Uimanov

Zemskov

2009

IEEE Trans. Plasma Sci.

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Investigation of the switching characteristics of high-pressure subnanosecond gas dischargers with the purpose of a sharp increasing of the breakdown voltages and the switching speed

Ivanov¹

2022

Plasma Sources Sci. Technol.

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The paper analyzes the data obtained in the subnanosecond time range on the times (t br) and speeds (V br) of switching of hydrogen diode dischargers. These data were obtained in a wide range of hydrogen pressures (p) and the degree of the discharge gap overvoltage (the length of the cathode-anode gap d) in a uniform electric field. It is shown that the reduced strength of the average electric field E br/p in the discharge gap at the moment of the beginning of the breakdown significantly decreases when the gas pressure increases from 5 atm to 50 atm. An increase in pressure from 50 atm to 60 atm leads to a sharp (by 40–135%, depending on the d) increase in the pulse breakdown voltage (U br) and an increase in E br/p. In proportion to the growth of E br/p the switching speed V br of the discharge gas gap increases. The observed effect is explained by the change in the discharge initiation mechanisms. The limitation of U br and V br in the hydrogen pressure range from 5 atm to 50 atm occurs as a result of gas ionization by runaway electrons and the subsequent development of a multi-avalanche discharge in the volume of the discharge gap. With a further increase in pressure, the discharge develops according to the streamer type. To design ultrafast gas dischargers of the subnanosecond range intended for switching high voltages, it is necessary to select an appropriate range of working gas pressures in order to ensure the development of a streamer-type discharge.

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