Accession Number : AD0860801

Title :   Monte Carlo Procedures for Transport of X-Rays and Fluorescent Light Through a Spherical, Altitude-Dependent Atmosphere. Vol. 1. X-Ray Transport.

Descriptive Note : Final rept. 1 Jul 68-30 Jun 69,

Corporate Author : RADIATION RESEARCH ASSOCIATES INC FORT WORTH TX

Personal Author(s) : Marshall, Joe D. ; Wells, Michael B. ; Leopard, Fred O. ; Tompkins, Keith W.

Report Date : 30 JUN 1969

Pagination or Media Count : 76

Abstract : This report describes a set of machine procedures that were coded in FORTRAN-IV language for the IBM-360/75 computer. These procedures provide machine tools for studying the x-ray energy deposition and the production and transport of x-ray induced air fluorescence to arbitrarily placed VELA-type receivers that result from a high-altitude detonation of a nuclear weapon. The x-ray transport procedure, ZAP, is described in Volume I of this report. It computes energy deposition and expectation fluxes at spherical surface receivers as a function of altitude, time, energy, and a position polar angle for energy, time, and angle-dependent point sources. The atmosphere is altitude-dependent and is described by a spherical shell geometry. Volume I contains a discussion of the ZAP procedure, input data preparation procedures for ZAP, and a data plotting procedure. Comparisons of computations made with ZAP with other calculated data are reported both in Volumes I and II of this report. (Author)

Descriptors :   (*NUCLEAR EXPLOSIONS, DETECTION), (*X RAYS, TRANSPORT PROPERTIES), COMPUTER PROGRAMMING, ATMOSPHERE MODELS, MONTE CARLO METHOD, FLUORESCENCE, LIGHT TRANSMISSION, AIRBURST, HIGH ALTITUDE.

Subject Categories : Optical Detection and Detectors
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE