Millimeter wave generation from a pseudospark-sourced electron beam

H. Yin, A.W. Cross, W. He, A.D.R. Phelps, K. Ronald, D. Bowes, C.W. Robertson

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

Experimental studies of the production and propagation of an electron beam from a multigap pseudospark discharge are presented. From a three-gap pseudospark, a beam up to 680 A was measured at the anode at an applied dc voltage of 23 kV. This beam can propagate downstream as far as 20 cm in a gaseous environment with no guiding magnetic field, which confirms that the transport of the electron beam was based on the neutralization of the space charge of the electron beam due to the ionization of the gas molecules by the beam itself. The beam is of very small size of 1-3 mm in diameter and is ideal to drive high frequency radiation. Higher energy electron beam pulses were generated using a 14-gap pseudospark discharge powered by a cable pulser capable of producing 120 ns duration and 170 kV voltage pulses. The beam measured had a current of up to 110 A. Interactions between the produced beam and a Ka-band Cherenkov maser and a W-band backward wave oscillator slow wave structure were simulated and designed. Millimeter wave pulses were detected from the Cherenkov maser and backward wave oscillator beam-wave interaction experiments.
LanguageEnglish
Article number063105
Number of pages6
JournalPhysics of Plasmas
Volume16
Issue number6
DOIs
Publication statusPublished - 23 Jun 2009

Fingerprint

wave generation
millimeter waves
electron beams
backward waves
masers
pulses
oscillators
wave interaction
electric potential
high energy electrons
cables
space charge
anodes
ionization
propagation
radiation
gases
magnetic fields
molecules

Keywords

  • backward wave oscillators
  • ionisation
  • masers
  • plasma production
  • plasma waves
  • plasma-beam interactions
  • slow wave structures
  • sparks

Cite this

@article{fc8deecb1e024771bd838f93d1506425,
title = "Millimeter wave generation from a pseudospark-sourced electron beam",
abstract = "Experimental studies of the production and propagation of an electron beam from a multigap pseudospark discharge are presented. From a three-gap pseudospark, a beam up to 680 A was measured at the anode at an applied dc voltage of 23 kV. This beam can propagate downstream as far as 20 cm in a gaseous environment with no guiding magnetic field, which confirms that the transport of the electron beam was based on the neutralization of the space charge of the electron beam due to the ionization of the gas molecules by the beam itself. The beam is of very small size of 1-3 mm in diameter and is ideal to drive high frequency radiation. Higher energy electron beam pulses were generated using a 14-gap pseudospark discharge powered by a cable pulser capable of producing 120 ns duration and 170 kV voltage pulses. The beam measured had a current of up to 110 A. Interactions between the produced beam and a Ka-band Cherenkov maser and a W-band backward wave oscillator slow wave structure were simulated and designed. Millimeter wave pulses were detected from the Cherenkov maser and backward wave oscillator beam-wave interaction experiments.",
keywords = "backward wave oscillators, ionisation, masers, plasma production, plasma waves, plasma-beam interactions, slow wave structures, sparks",
author = "H. Yin and A.W. Cross and W. He and A.D.R. Phelps and K. Ronald and D. Bowes and C.W. Robertson",
year = "2009",
month = "6",
day = "23",
doi = "10.1063/1.3155444",
language = "English",
volume = "16",
journal = "Physics of Plasmas",
issn = "1070-664X",
number = "6",

}

Millimeter wave generation from a pseudospark-sourced electron beam. / Yin, H.; Cross, A.W.; He, W.; Phelps, A.D.R.; Ronald, K.; Bowes, D.; Robertson, C.W.

In: Physics of Plasmas, Vol. 16, No. 6, 063105, 23.06.2009.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Millimeter wave generation from a pseudospark-sourced electron beam

AU - Yin, H.

AU - Cross, A.W.

AU - He, W.

AU - Phelps, A.D.R.

AU - Ronald, K.

AU - Bowes, D.

AU - Robertson, C.W.

PY - 2009/6/23

Y1 - 2009/6/23

N2 - Experimental studies of the production and propagation of an electron beam from a multigap pseudospark discharge are presented. From a three-gap pseudospark, a beam up to 680 A was measured at the anode at an applied dc voltage of 23 kV. This beam can propagate downstream as far as 20 cm in a gaseous environment with no guiding magnetic field, which confirms that the transport of the electron beam was based on the neutralization of the space charge of the electron beam due to the ionization of the gas molecules by the beam itself. The beam is of very small size of 1-3 mm in diameter and is ideal to drive high frequency radiation. Higher energy electron beam pulses were generated using a 14-gap pseudospark discharge powered by a cable pulser capable of producing 120 ns duration and 170 kV voltage pulses. The beam measured had a current of up to 110 A. Interactions between the produced beam and a Ka-band Cherenkov maser and a W-band backward wave oscillator slow wave structure were simulated and designed. Millimeter wave pulses were detected from the Cherenkov maser and backward wave oscillator beam-wave interaction experiments.

AB - Experimental studies of the production and propagation of an electron beam from a multigap pseudospark discharge are presented. From a three-gap pseudospark, a beam up to 680 A was measured at the anode at an applied dc voltage of 23 kV. This beam can propagate downstream as far as 20 cm in a gaseous environment with no guiding magnetic field, which confirms that the transport of the electron beam was based on the neutralization of the space charge of the electron beam due to the ionization of the gas molecules by the beam itself. The beam is of very small size of 1-3 mm in diameter and is ideal to drive high frequency radiation. Higher energy electron beam pulses were generated using a 14-gap pseudospark discharge powered by a cable pulser capable of producing 120 ns duration and 170 kV voltage pulses. The beam measured had a current of up to 110 A. Interactions between the produced beam and a Ka-band Cherenkov maser and a W-band backward wave oscillator slow wave structure were simulated and designed. Millimeter wave pulses were detected from the Cherenkov maser and backward wave oscillator beam-wave interaction experiments.

KW - backward wave oscillators

KW - ionisation

KW - masers

KW - plasma production

KW - plasma waves

KW - plasma-beam interactions

KW - slow wave structures

KW - sparks

U2 - 10.1063/1.3155444

DO - 10.1063/1.3155444

M3 - Article

VL - 16

JO - Physics of Plasmas

T2 - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 6

M1 - 063105

ER -