skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: On the production of energetic neutrals in the cathode sheath of direct-current discharges

Abstract

Direct measurements of the energy distribution of energetic neutrals incident onto the cathode of a dc glow discharge are presented. The measurements are performed by time-of-flight analysis of neutrals escaping through a cathode orifice. The experimental results are found to be in excellent agreement with Monte Carlo simulations, although the forward angle of the neutrals considered is limited in the present experimental configuration. It is found that the commonly used theories for the production of energetic neutrals through charge exchange in the cathode sheath do not capture the neutral energy distribution over the range of discharge voltage studied.

Authors:
;  [1]
  1. Mechanical Engineering Department, Stanford University, Stanford, California 94305-3032 (United States)
Publication Date:
OSTI Identifier:
20971862
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 10; Other Information: DOI: 10.1063/1.2711416; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CATHODES; CHARGE EXCHANGE; COMPUTERIZED SIMULATION; DIRECT CURRENT; ELECTRIC POTENTIAL; ENERGY SPECTRA; GLOW DISCHARGES; MONTE CARLO METHOD; ORIFICES; PLASMA; PLASMA DIAGNOSTICS; PLASMA SHEATH; TIME-OF-FLIGHT METHOD

Citation Formats

Ito, Tsuyohito, and Cappelli, Mark A. On the production of energetic neutrals in the cathode sheath of direct-current discharges. United States: N. p., 2007. Web. doi:10.1063/1.2711416.
Ito, Tsuyohito, & Cappelli, Mark A. On the production of energetic neutrals in the cathode sheath of direct-current discharges. United States. doi:10.1063/1.2711416.
Ito, Tsuyohito, and Cappelli, Mark A. Mon . "On the production of energetic neutrals in the cathode sheath of direct-current discharges". United States. doi:10.1063/1.2711416.
@article{osti_20971862,
title = {On the production of energetic neutrals in the cathode sheath of direct-current discharges},
author = {Ito, Tsuyohito and Cappelli, Mark A.},
abstractNote = {Direct measurements of the energy distribution of energetic neutrals incident onto the cathode of a dc glow discharge are presented. The measurements are performed by time-of-flight analysis of neutrals escaping through a cathode orifice. The experimental results are found to be in excellent agreement with Monte Carlo simulations, although the forward angle of the neutrals considered is limited in the present experimental configuration. It is found that the commonly used theories for the production of energetic neutrals through charge exchange in the cathode sheath do not capture the neutral energy distribution over the range of discharge voltage studied.},
doi = {10.1063/1.2711416},
journal = {Applied Physics Letters},
number = 10,
volume = 90,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2007},
month = {Mon Mar 05 00:00:00 EST 2007}
}