Accession Number:

ADA156630

Title:

Examination of a Method for Predicting the Properties of Railgun Plasmas,

Descriptive Note:

Corporate Author:

MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s):

Report Date:

1985-04-01

Pagination or Media Count:

35.0

Abstract:

Basic studies of railguns require knowledge of the properties of plasmas. This report examines the work of Dr P. Kovitya who has developed two computer programs for predicting the thermochemical functions and transport coefficients of partially and fully-ionized gases in chemical equilibrium. Kovityas work is based on extending the use of existing NASA codes from the temperature range of 300 to 5000 K to temperatures up to 30,000 K. In making these extensions, Kovitya has neglected the effect of screened Coulomb interactions on the ionization potentials of the various species comprising the ionised gas. This may produce significantly different numerical results for temperatures above 20,000 K. A detailed discussion of Kovityas work is presented in this paper and the areas that require further consideration for the work to be applicable to a railgun plasma are highlighted. Keywords Plasma Diagnostics Railgun Accelerators.

Subject Categories:

  • Particle Accelerators

Distribution Statement:

APPROVED FOR PUBLIC RELEASE