Accession Number : AD0907581

Title :   Numerical Model for Drift Tube Analysis,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Keller, G. E. ; Sullivan, M. R. ; Colonna-Romano, L. M. ; Kregel, M. D.

Report Date : OCT 1972

Pagination or Media Count : 56

Abstract : A FORTRAN IV program has been written which uses an iterative technique to model ion transport and chemistry in a drift tube. The program, named MULTIGATE, uses finite difference calculus to generate time arrival histories at several points in the drift space for the case of three ion species undergoing populating and depopulating reactions and at the same time drifting with the electric field and diffusing in the radial and axial directions. To facilitate comparison with drift tube data, the computer output includes plots of the ionic currents versus time. (Author)

Descriptors :   (*IONS, DIFFUSION), (*COMPUTER PROGRAMS, IONS), (*PARTICLE ACCELERATOR COMPONENTS, LINEAR ACCELERATORS), ITERATIONS, NUMERICAL ANALYSIS, ION SOURCES, TRANSPORT PROPERTIES, SUBROUTINES, ELECTRIC FIELDS, DRIFT, VELOCITY, REACTION KINETICS, DENSITY, MOBILITY, IONOSPHERE, ATMOSPHERE MODELS.

Subject Categories : Computer Programming and Software
      Particle Accelerators
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE