High-current electron sources based on gaseous discharges

Ya E. Krasik; J. Z. Gleizer; A. Krokhmal; K. Chirko; A. Sayapin; J. Felsteiner; V. Bernshtam; V. I. Gushenets

doi:10.1016/j.vacuum.2004.07.067

High-current electron sources based on gaseous discharges

Ya E. Krasik, J. Z. Gleizer, A. Krokhmal, K. Chirko, A. Sayapin, J. Felsteiner, V. Bernshtam, V. I. Gushenets

Research output: Contribution to journal › Conference article › peer-review

Abstract

We review the operation of a ferroelectric plasma source (FPS) with enhanced plasma density and of high-current hollow cathode (HC) and hollow anode (HA) discharges. Different schemes (arc sources, magnetron and FPS) were used for ignition and sustaining the HC and HA discharges with current amplitude ≤4 kA.These discharges are characterized by a positive anode potential with respect to the hollow electrode walls and the plasma density and temperature inside the hollow electrode cavity reach ∼3×10¹⁹m ^-3 and ≤12 eV, respectively. It was shown that the incorporation of the FPS in the HA and HC enables one to develop a compact high-current electron source. The characteristics of an electron diode with FPS, HA and HC were studied under an accelerating voltage ≤250 kV and ∼400 ns pulse duration. It was shown that these sources allow the generation of an electron beam with a cross-sectional area of 0.01 m² and amplitude up to 1-2 kA.

Original language	English
Pages (from-to)	391-398
Number of pages	8
Journal	Vacuum
Volume	77
Issue number	4
DOIs	https://doi.org/10.1016/j.vacuum.2004.07.067
State	Published - 11 Mar 2005
Event	7th International Conference on Electron Beam Technologies - Varna, Bulgaria Duration: 2 Jun 2003 → 5 Jun 2003

Keywords

Electron beams
Ferroelectric cathodes
Gaseous discharge
Plasma sources

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

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10.1016/j.vacuum.2004.07.067

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title = "High-current electron sources based on gaseous discharges",

abstract = "We review the operation of a ferroelectric plasma source (FPS) with enhanced plasma density and of high-current hollow cathode (HC) and hollow anode (HA) discharges. Different schemes (arc sources, magnetron and FPS) were used for ignition and sustaining the HC and HA discharges with current amplitude ≤4 kA.These discharges are characterized by a positive anode potential with respect to the hollow electrode walls and the plasma density and temperature inside the hollow electrode cavity reach ∼3×1019m -3 and ≤12 eV, respectively. It was shown that the incorporation of the FPS in the HA and HC enables one to develop a compact high-current electron source. The characteristics of an electron diode with FPS, HA and HC were studied under an accelerating voltage ≤250 kV and ∼400 ns pulse duration. It was shown that these sources allow the generation of an electron beam with a cross-sectional area of 0.01 m2 and amplitude up to 1-2 kA.",

keywords = "Electron beams, Ferroelectric cathodes, Gaseous discharge, Plasma sources",

author = "Krasik, {Ya E.} and Gleizer, {J. Z.} and A. Krokhmal and K. Chirko and A. Sayapin and J. Felsteiner and V. Bernshtam and Gushenets, {V. I.}",

year = "2005",

month = mar,

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doi = "10.1016/j.vacuum.2004.07.067",

language = "אנגלית",

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note = "7th International Conference on Electron Beam Technologies ; Conference date: 02-06-2003 Through 05-06-2003",

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T1 - High-current electron sources based on gaseous discharges

AU - Krasik, Ya E.

AU - Gleizer, J. Z.

AU - Krokhmal, A.

AU - Chirko, K.

AU - Sayapin, A.

AU - Felsteiner, J.

AU - Bernshtam, V.

AU - Gushenets, V. I.

PY - 2005/3/11

Y1 - 2005/3/11

N2 - We review the operation of a ferroelectric plasma source (FPS) with enhanced plasma density and of high-current hollow cathode (HC) and hollow anode (HA) discharges. Different schemes (arc sources, magnetron and FPS) were used for ignition and sustaining the HC and HA discharges with current amplitude ≤4 kA.These discharges are characterized by a positive anode potential with respect to the hollow electrode walls and the plasma density and temperature inside the hollow electrode cavity reach ∼3×1019m -3 and ≤12 eV, respectively. It was shown that the incorporation of the FPS in the HA and HC enables one to develop a compact high-current electron source. The characteristics of an electron diode with FPS, HA and HC were studied under an accelerating voltage ≤250 kV and ∼400 ns pulse duration. It was shown that these sources allow the generation of an electron beam with a cross-sectional area of 0.01 m2 and amplitude up to 1-2 kA.

AB - We review the operation of a ferroelectric plasma source (FPS) with enhanced plasma density and of high-current hollow cathode (HC) and hollow anode (HA) discharges. Different schemes (arc sources, magnetron and FPS) were used for ignition and sustaining the HC and HA discharges with current amplitude ≤4 kA.These discharges are characterized by a positive anode potential with respect to the hollow electrode walls and the plasma density and temperature inside the hollow electrode cavity reach ∼3×1019m -3 and ≤12 eV, respectively. It was shown that the incorporation of the FPS in the HA and HC enables one to develop a compact high-current electron source. The characteristics of an electron diode with FPS, HA and HC were studied under an accelerating voltage ≤250 kV and ∼400 ns pulse duration. It was shown that these sources allow the generation of an electron beam with a cross-sectional area of 0.01 m2 and amplitude up to 1-2 kA.

KW - Electron beams

KW - Ferroelectric cathodes

KW - Gaseous discharge

KW - Plasma sources

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DO - 10.1016/j.vacuum.2004.07.067

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AN - SCOPUS:13844281373

SN - 0042-207X

VL - 77

SP - 391

EP - 398

JO - Vacuum

JF - Vacuum

IS - 4

T2 - 7th International Conference on Electron Beam Technologies

Y2 - 2 June 2003 through 5 June 2003

ER -

High-current electron sources based on gaseous discharges

Abstract

Keywords

ASJC Scopus subject areas

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