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Title: Nonlocal control of electron temperature in short direct current glow discharge plasma

To demonstrate controlling the electron temperature in nonlocal plasma, experiments have been performed on a short (without positive column) dc glow discharge with a cold cathode by applying different voltages to the conducting discharge wall. The experiments have been performed for low-pressure noble gas discharges. The applied voltage can modify trapping the energetic electrons emitted from the cathode sheath and arising from the atomic and molecular processes in the plasma within the device volume. This phenomenon results in the energetic electrons heating the slow plasma electrons, which consequently modifies the electron temperature. Furthermore, a numerical model of the discharge has demonstrated the electron temperature modification for the above case.
Authors:
 [1] ;  [2] ;  [3] ; ;  [1] ;  [4] ;  [2]
  1. Department of Optics and Spectroscopy, St. Petersburg State University, St. Petersburg 199034 (Russian Federation)
  2. (Russian Federation)
  3. (United States)
  4. International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation)
Publication Date:
OSTI Identifier:
22303450
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CATHODES; DIRECT CURRENT; ELECTRON TEMPERATURE; EMISSION; EQUIPMENT; GLOW DISCHARGES; PLASMA; PLASMA HEATING; POSITIVE COLUMN; RARE GASES; TAIL ELECTRONS; TRAPPING