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Explosive field emission and plasma expansion of carbon nanotube cathodes

High intensity electron emission cathodes based on carbon nanotube films have been successfully fabricated. An investigation of the explosive field emission properties of the carbon nanotube cathode in a double-pulse mode was presented and a high emission current density of 309 A ∕ cm 2 was obtained... Full description

Journal Title: Applied Physics Letters 09 April 2007, Vol.90(15)
Main Author: Liao, Qingliang
Other Authors: Zhang, Yue , Huang, Yunhua , Qi, Junjie , Gao, Zhanjun , Xia, Liansheng , Zhang, Huang
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: © 2007 American Institute of Physics (AIP)
ID: ISSN: 0003-6951 ; E-ISSN: 1077-3118 ; DOI: 10.1063/1.2722227
Link: http://dx.doi.org/10.1063/1.2722227
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recordid: aip_complete10.1063/1.2722227
title: Explosive field emission and plasma expansion of carbon nanotube cathodes
format: Article
creator:
  • Liao, Qingliang
  • Zhang, Yue
  • Huang, Yunhua
  • Qi, Junjie
  • Gao, Zhanjun
  • Xia, Liansheng
  • Zhang, Huang
subjects:
  • Plasmas And Electrical Discharges
ispartof: Applied Physics Letters, 09 April 2007, Vol.90(15)
description: High intensity electron emission cathodes based on carbon nanotube films have been successfully fabricated. An investigation of the explosive field emission properties of the carbon nanotube cathode in a double-pulse mode was presented and a high emission current density of 309 A ∕ cm 2 was obtained. The time-and-space resolution of the electron-beam flow from the cathode was investigated. The formation of the cathode plasma layer was proven and the plasma expanded at a velocity of ∼ 7.8 cm ∕ μ s toward the anode. The formation of cathode plasma has no preferential position and the local enhancement of electron beams is random.
language: eng
source: © 2007 American Institute of Physics (AIP)
identifier: ISSN: 0003-6951 ; E-ISSN: 1077-3118 ; DOI: 10.1063/1.2722227
fulltext: fulltext
issn:
  • 0003-6951
  • 1077-3118
  • 00036951
  • 10773118
url: Link


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descriptionHigh intensity electron emission cathodes based on carbon nanotube films have been successfully fabricated. An investigation of the explosive field emission properties of the carbon nanotube cathode in a double-pulse mode was presented and a high emission current density of 309 A ∕ cm 2 was obtained. The time-and-space resolution of the electron-beam flow from the cathode was investigated. The formation of the cathode plasma layer was proven and the plasma expanded at a velocity of ∼ 7.8 cm ∕ μ s toward the anode. The formation of cathode plasma has no preferential position and the local enhancement of electron beams is random.
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descriptionHigh intensity electron emission cathodes based on carbon nanotube films have been successfully fabricated. An investigation of the explosive field emission properties of the carbon nanotube cathode in a double-pulse mode was presented and a high emission current density of 309 A ∕ cm 2 was obtained. The time-and-space resolution of the electron-beam flow from the cathode was investigated. The formation of the cathode plasma layer was proven and the plasma expanded at a velocity of ∼ 7.8 cm ∕ μ s toward the anode. The formation of cathode plasma has no preferential position and the local enhancement of electron beams is random.
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abstractHigh intensity electron emission cathodes based on carbon nanotube films have been successfully fabricated. An investigation of the explosive field emission properties of the carbon nanotube cathode in a double-pulse mode was presented and a high emission current density of 309 A ∕ cm 2 was obtained. The time-and-space resolution of the electron-beam flow from the cathode was investigated. The formation of the cathode plasma layer was proven and the plasma expanded at a velocity of ∼ 7.8 cm ∕ μ s toward the anode. The formation of cathode plasma has no preferential position and the local enhancement of electron beams is random.
pubAmerican Institute of Physics
doi10.1063/1.2722227
date2007-04-09