A DETECTOR ANGLE INTEGRATION PROGRAM DESIGNED TO OPERATE ON THE NGM CODE OUTPUT,
ARMY NUCLEAR DEFENSE LAB EDGEWOOD ARSENAL MD
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The Los Alamos Scientific Laboratory LASL is preparing a Neutron Gamma Monte Carlo NGM transport code that will provide differential data for use in mapping the initial radiation environment created by a nuclear detonation. The NGM output provides fluxes at a series of detectors, normalized to one neutron that leaves the source in the given source-energy solid-angle group. By appropriately weighting the output and integrating it with respect to the variables, the radiation field of given weapons can be mapped. A set of codes has been generated at US Army Nuclear Defense Laboratory USANDL for use in integrating the fluxes over the variables source energies and angles, detector energies, angles and times, with appropriate weighting where necessary to provide input for special problems. The report describes a digital computer program written for the GE-225 Computer 16k core storage and 6 magnetic tape drives in the GE-220 Series Tape Fortran language. The program integrates the LASL NGM radiation transport code differential flux output, weighted by a user-supplied function, with respect to the detector-angle variables. The resultant output is the flux at the detectors, integrated over detector angles, appropriately weighted for anisotropy of detector response.
- Computer Programming and Software
- Computer Hardware
- Nuclear Instrumentation
- Nuclear Physics and Elementary Particle Physics