Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] abdk_v1_0.gz(18 Kbytes)|
|Manuscript Title: EBEGA: the counting efficiency of a beta-gamma emitter in liquid scintillators.|
|Authors: E. Garcia-Torano, A. Grau Malonda, J.M. Los Arcos|
|Program title: EBEGA|
|Catalogue identifier: ABDK_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 50(1988)313|
|Programming language: Fortran.|
|Computer: IBM 3090/150.|
|Operating system: VM.|
|RAM: 143K words|
|Word size: 32|
|Keywords: Particle physics, Elementary, Detector design, Beta-decay, Liquid scintillation, Efficiency.|
Nature of problem:
This program computes the counting efficiency of a beta-gamma ray emitter as a function of the figure of merit in liquid scintillators.
The beta spectra are calculated from the Fermi theory of beta decayy, taking into account shape factors. The gamma-ray interaction with the scintillator is simulated by means of a Monte Carlo procedure, in order to obtain the gamma ray interaction probability and the spectrum of Compton and photoelectric electrons. The partial counting efficiency for beta gamma-ray coincidence, beta internal conversion coincidence and single beta-ray are computed to obtain the total counting efficiency.
The counting efficiency is valid for spectrometers with two photo- multipliers working in coincidence. Pair production is not considered in the Monte Carlo code; hence, results for gamma-rays with energy superior to 2 MeV must be carefully considered. The cross sections for gamma-ray interaction correspond to a toluene based scintillator. For other scintillators, the corresponding cross section has to be modified.
The test requires 147 s of cpu time for the IBM 3090/150 computer, including compilation and linking.
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