Forward Monte Carlo Calculation of Coincidence Gamma-Ray Spectra
Author : Adan Faustino Calderón (Jr.)
Publisher :
Page : 79 pages
File Size : 34,80 MB
Release : 2014
Category :
ISBN :
Author : Adan Faustino Calderón (Jr.)
Publisher :
Page : 79 pages
File Size : 34,80 MB
Release : 2014
Category :
ISBN :
Author :
Publisher :
Page : 5 pages
File Size : 28,77 MB
Release : 1993
Category :
ISBN :
An implementation of the Electron Gamma Shower 4 code (EGS4) has been developed to allow convenient simulation of typical gamma ray measurement systems. Coincidence gamma rays, beta spectra, and angular correlations have been added to adequately simulate a complete nuclear decay and provide corrections to experimentally determined detector efficiencies. This code has been used to strip certain low-background spectra for the purpose of extremely low-level assay. Monte Carlo calculations of this sort can be extremely successful since low background detectors are usually free of significant contributions from poorly localized radiation sources, such as cosmic muons, secondary cosmic neutrons, and radioactive construction or shielding materials. Validation of this code has been obtained from a series of comparisons between measurements and blind calculations. The singles counting efficiency of a particular counting experiment was reproduced within the accuracy of the known dimensions of the detector components. This allowed the complete simulation of a nuclear decay, including two coincident gamma rays with a non-isotropic angular correlation. In addition, text-book efficiency curves have been reproduced for several sizes of sodium iodide detectors. Examples of the use and several spectral results are presented.
Author : Herbert Steinberg
Publisher :
Page : 202 pages
File Size : 24,78 MB
Release : 1960
Category : Gamma rays
ISBN :
Author : Theodore E. Fessler
Publisher :
Page : 54 pages
File Size : 12,35 MB
Release : 1961
Category : Nuclear physics
ISBN :
Author : A. B. Chilton
Publisher :
Page : 59 pages
File Size : 21,46 MB
Release : 1967
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A Monte Carlo calculation of the energy spectrum emitted by a collimated, Co-60 source is reported. The collimator assumed is very similar to one currently being used in experimental shielding studies at the University of Illinois. Radiation emerging from the collimator is classified into 13 equal-length energy intervals between 0.1 and 1.4 MeV, and into 3 direction intervals for angles relative to the collimator axis between 0 and 90 deg. Comparisons are made with experimental and theoretical work reported by others. (Author).
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
Page : 36 pages
File Size : 17,6 MB
Release : 2018-10-17
Category : Science
ISBN : 9781728889320
The progress made during 1995 on the Monte-Carlo gamma-ray spectrum simulation program BSIMUL is discussed. Several features have been added, including the ability to model shields that are tapered cylinders. Several simulations were made on the Near Earth Asteroid Rendezvous detector. Haywood, S. E. and Rester, A. C., Jr. Unspecified Center NAS5-32586
Author : Joe R. Beeler (Jr.)
Publisher :
Page : 18 pages
File Size : 24,81 MB
Release : 1961
Category : Gamma rays
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Author : Jiaxin Wang
Publisher :
Page : 176 pages
File Size : 45,47 MB
Release : 2011
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Author : Xiaogang Han
Publisher :
Page : 128 pages
File Size : 33,97 MB
Release : 2005
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ISBN :
Keywords: PGNAA, Coincidence measurement, Monte Carlo, MCNP.
Author : Andreas Kling
Publisher : Springer Science & Business Media
Page : 1200 pages
File Size : 33,12 MB
Release : 2014-02-22
Category : Science
ISBN : 3642182119
This book focuses on the state of the art of Monte Carlo methods in radiation physics and particle transport simulation and applications. Special attention is paid to algorithm development for modeling, and the analysis of experiments and measurements in a variety of fields.