
Accession Number : AD0752026
Title : PEDAS: A 2Dimensional TimeDependent Monte Carlo Code for PhotonEnergy Deposition and Air Stripping,
Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD
Personal Author(s) : Lorenz,Richard A.
Report Date : 14 SEP 1972
Pagination or Media Count : 112
Abstract : The PEDAS program is an axiallysymmetric 2dimensional Monte Carlo computer code which calculates the closein timedependent energy deposition and ionization due to the primary and scattered xrays from one or more point sources in an exponential atmosphere. The arbitrary spectrum emitted by each source is specified individually and can be time dependent. A feature of the code allows a certain number of photons to be propagated simultaneously in order to approximate better the actual time relationship between scattered and unscattered photons. The code is described and the results of several sample calculations are discussed. A listing of the program is given. (Author)
Descriptors : (*GAS IONIZATION, *COMPUTER PROGRAMS), (*NUCLEAR EXPLOSIONS, GAS IONIZATION), MONTE CARLO METHOD, SCATTERING, DIFFERENTIAL CROSS SECTIONS, ATOMIC ENERGY LEVELS
Subject Categories : Computer Programming and Software
Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE