Experimental demonstration of a single capillary, water-activated cathode for a sub-microsecond electron accelerator

I. Egorov, A. Poloskov, M. Serebrennikov, G. Remnev

Research output: Contribution to journalArticle

Abstract

A pulsed electron beam is a modern tool for research and technology. The parameters of the electron beam depend on the characteristics of the cathode system. This paper describes the first results of tests of novel type of a plasma cathode for a sub-microsecond electron accelerator. The cathode supplies ∼1.5 mg/s of distilled water through a single capillary to the accelerating gap. A generator based on a pulsed transformer supplies 300 kV, 200 ns (FWHM) voltage pulses at repetition rate of up to 40 pps to the vacuum diode and produces an electron-beam current of 250 A. Optical imaging of the cathode surface definitely localizes the emission center at the location of the single capillary. A single pulse of the electron beam transmits ∼38 μC of charge and ∼6.5 J of energy.

Fingerprint

electron accelerators
Particle accelerators
Electron beams
Cathodes
Demonstrations
cathodes
electron beams
water
Water
Full width at half maximum
pulses
beam currents
transformers
repetition
Diodes
generators
diodes
Vacuum
Plasmas
Imaging techniques

Keywords

  • Plasma cathode
  • Pulsed electron beam
  • Vacuum electron diode

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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title = "Experimental demonstration of a single capillary, water-activated cathode for a sub-microsecond electron accelerator",
abstract = "A pulsed electron beam is a modern tool for research and technology. The parameters of the electron beam depend on the characteristics of the cathode system. This paper describes the first results of tests of novel type of a plasma cathode for a sub-microsecond electron accelerator. The cathode supplies ∼1.5 mg/s of distilled water through a single capillary to the accelerating gap. A generator based on a pulsed transformer supplies 300 kV, 200 ns (FWHM) voltage pulses at repetition rate of up to 40 pps to the vacuum diode and produces an electron-beam current of 250 A. Optical imaging of the cathode surface definitely localizes the emission center at the location of the single capillary. A single pulse of the electron beam transmits ∼38 μC of charge and ∼6.5 J of energy.",
keywords = "Plasma cathode, Pulsed electron beam, Vacuum electron diode",
author = "I. Egorov and A. Poloskov and M. Serebrennikov and G. Remnev",
year = "2019",
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doi = "10.1016/j.nima.2019.162459",
language = "English",
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journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
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TY - JOUR

T1 - Experimental demonstration of a single capillary, water-activated cathode for a sub-microsecond electron accelerator

AU - Egorov, I.

AU - Poloskov, A.

AU - Serebrennikov, M.

AU - Remnev, G.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - A pulsed electron beam is a modern tool for research and technology. The parameters of the electron beam depend on the characteristics of the cathode system. This paper describes the first results of tests of novel type of a plasma cathode for a sub-microsecond electron accelerator. The cathode supplies ∼1.5 mg/s of distilled water through a single capillary to the accelerating gap. A generator based on a pulsed transformer supplies 300 kV, 200 ns (FWHM) voltage pulses at repetition rate of up to 40 pps to the vacuum diode and produces an electron-beam current of 250 A. Optical imaging of the cathode surface definitely localizes the emission center at the location of the single capillary. A single pulse of the electron beam transmits ∼38 μC of charge and ∼6.5 J of energy.

AB - A pulsed electron beam is a modern tool for research and technology. The parameters of the electron beam depend on the characteristics of the cathode system. This paper describes the first results of tests of novel type of a plasma cathode for a sub-microsecond electron accelerator. The cathode supplies ∼1.5 mg/s of distilled water through a single capillary to the accelerating gap. A generator based on a pulsed transformer supplies 300 kV, 200 ns (FWHM) voltage pulses at repetition rate of up to 40 pps to the vacuum diode and produces an electron-beam current of 250 A. Optical imaging of the cathode surface definitely localizes the emission center at the location of the single capillary. A single pulse of the electron beam transmits ∼38 μC of charge and ∼6.5 J of energy.

KW - Plasma cathode

KW - Pulsed electron beam

KW - Vacuum electron diode

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