EQUATION OF STATE OF GASEOUS METALLIC PLASMAS

Abstract

Effort was made to implement a theory which applies modern statistical mechanics to the interactions prevailing between different types of charged particles in an ionized system to calculate the equation of state of gaseous metallic plasmas. Contributions to the pressure from these interactions are given by formulas in terms of correlation functions which relate the probability of finding a charged particle of type j in the immediate neighborhood of a point x sub j when a charged particle of type i is at the point x sub i. The latter are to be estimated by successive iteration of an exponential involving the product of the pair of charges and a double integral. The procedure was programmed on the IBM 709/7090 Electronic Data Processing System with the aid of FORTRAN language. Results are obtainable for temperatures of 10 to the 7th power and 10 to the 6th power K, but the computations diverge for temperature 100,000 K and charge density 0.001 atomic units, this despite the fact that the order of integration and summation in the formula was interchanged in the hope of getting cancellation of divergent factors. A mathematical study shows that the equation is essentially convergent. It is concluded that it may be possible to introduce adjustments into the program to obviate the practical difficulties. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 03, 1961
Accession Number
AD0263190

Entities

People

  • D.s. Villars

Organizations

  • Naval Air Weapons Station China Lake

Tags

DTIC Thesaurus Topics

  • Cancellation
  • Charge Density
  • Charged Particles
  • Computations
  • Data Processing
  • Equations
  • Integrals
  • Iterations
  • Language
  • Mathematics
  • Mechanics
  • Particles
  • Probability
  • Statistical Mechanics

Readers

  • Calculus or Mathematical Analysis
  • Plasma Physics.

Technology Areas

  • Microelectronics