Accession Number : AD0836488

Title :   ENERGY DEPOSITION RATES AND RADIAL AND POLAR COMPTON CURRENTS FROM GAMMA-RAY AND NEUTRON SOURCES IN THE INTERMEDIATE ALTITUDE RANGE.

Descriptive Note : Technical rept. Mar 67-Mar 68,

Corporate Author : UNITED NUCLEAR CORP ELMSFORD N Y RESEARCH AND ENGINEERING CENTER

Personal Author(s) : Cohen,M. O. ; Schamberger,R. D.

Report Date : JUN 1968

Pagination or Media Count : 158

Abstract : The investigation reported herein was undertaken to determine primary and secondary gamma-ray energy deposition rates, and radial and polar Compton electron currents from specified monoenergetic neutron and gamma-ray sources at specific altitudes in the intermediate altitude range. The magnitude and time dependence of the gamma-ray energy deposition and Compton electron currents were determined, by Monte Carlo studies, at point detector locations surrounding each source position. The results at each detector location were analyzed to provide a general description of energy deposition and Compton currents from the considered sources. Energy deposition rates and radial currents from primary photon sources are fit to a two-exponential analytical expression. The variation of polar currents, from primary photon sources, with source altitude and energy and source-to-detector orientation and separation distance is described. Also described are the energy deposition rates and radial and polar currents from secondary sources of gamma radiation. A detailed description is presented of a series of additional calculations, which, on the basis of the data obtained in this program, are recommended to supplement this study. (Author)

Descriptors :   (*GAMMA RAYS, *COMPTON SCATTERING), (*NEUTRONS, DEPOSITION), PHOTONS, KINETIC ENERGY, DOSE RATE, PENETRATION, RANGE(DISTANCE), GAMMA EMISSION, DOSAGE, INTENSITY, NEUTRON FLUX, NEUTRON ABSORPTION, COMPUTER PROGRAMS, MONTE CARLO METHOD, DIGITAL COMPUTERS, NITROGEN, OXYGEN, GAMMA NEUTRON REACTIONS, HIGH ALTITUDE, MAGNETOHYDRODYNAMICS, ELECTRONS, TRANSPORT PROPERTIES

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE