Accession Number : ADA138632

Title :   Analysis of Spacecraft Charging, Particle Beams and Geophysical Data Bases.

Descriptive Note : Final rept. May 80-May 83,

Corporate Author : RADEX INC CARLISLE MA

Personal Author(s) : Bhavnani,K H ; McNeil,W J ; Tautz,M F

PDF Url : ADA138632

Report Date : 31 Jul 1983

Pagination or Media Count : 123

Abstract : This report documents investigations and computer programs developed for study of spacecraft charging, ionization effects of beams, and analyses of geophysical data bases. Spacecraft charging studies have been performed utilizing NASCAP and the associated program MATCHG. Specific SCATHA satellite charging events were simulated in detail. Special studies of HELIOS 1, GEOS, and a simple Space Based Radar are also described. Investigations for plasma definition and for determining threshold conditions for materials charging are summarized. Ionization and charging characteristics due to electron and beam currents are simulated for simple spherical or cylindrical symmetries, and includes flight simulation predictions. Particle trajectory studies were conducted for some basic electric field configurations, as well as for tracking particle beams in the geomagnetic field. Atmospheric density and winds have been determined for a series of rocket sphere flights in the lower thermosphere. An interactive graphics program (SUATEK) has been advanced.

Descriptors :   *SPACE CHARGE, *PARTICLE BEAMS, *SPACECRAFT COMPONENTS, ELECTRIC CHARGE, MAGNETOSPHERE, PARTICLE TRAJECTORIES, CHARGED PARTICLES, INTERACTIVE GRAPHICS, FLIGHT SIMULATION, DATA BASES, GEOPHYSICS

Subject Categories : Nuclear Physics & Elementary Particle Physics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE