Accession Number:

ADA129832

Title:

Theoretical Studies of Kinetic Mechanisms of Negative Ion Formation in Plasmas.

Descriptive Note:

Final technical rept. 15 Jan 81-15 Jan 83,

Corporate Author:

UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CT

Personal Author(s):

Report Date:

1983-03-01

Pagination or Media Count:

30.0

Abstract:

This technical program constitutes a theortical research investigation of the kinetic mechanisms of negative ion formation in plasmas. This study was directed toward elucidating the mechanisms of the most important volume-dependent reactions that occur in hydrogen-ion, H-D-, source devices, primarily of the Belchenko-Dimov-Dudnikov BDD type. The primary goal of this research program was to identify the most important reactions leading to H-D- production or destruction and to estimate these reaction rates as function of system parameters such as density, composition and temperature. A further goal was to explore new chemical sources for the production of light mass negative atomic ions. The results of this program furnish data and provide direction for more detailed investigations into the kinetics of both gas phase and gas-surface reaction rates of importance in ion source devices and provide input for reliable modeling of such systems. This investigation was carried out using quantum mechanical mehtods. both ab initio and density functional approaches were employed in these studies.

Subject Categories:

  • Physical Chemistry
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE