The use of Geant4 for simulations of a plastic beta-detector and its application to efficiency calibration

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dc.creatorGolovko, V. V.
dc.creatorIacob, V. E.
dc.creatorHardy, J. C.
dc.date2008-06-05
dc.date2008-06-15
dc.date.accessioned2026-07-07T11:51:26Z
dc.date.available2026-07-07T11:51:26Z
dc.descriptionPrecise beta-branching-ratio measurements are required in order to determine ft-values as a part of our program to test the Electroweak Standard Model via unitarity of the Cabibbo-Kobayashi-Moskawa matrix. For the measurements to be useful in this test, their precision must be close to 0.1 %. In a branching-ratio measurement, we position the radioactive sample between a thin plastic scintillator used to detect beta-particles, and a HPGe detector for gamma-rays. Both beta singles and beta-gamma coincidences are recorded. Although the branching ratio depends most strongly on the HPGe detector efficiency, it has some sensitivity to the energy dependence of the beta-detector efficiency. We report here on a study of our beta-detector response function, which used Monte Carlo calculations performed by the Geant4 toolkit. Results of the simulations are compared to measured beta-spectra from several standard beta-sources.
dc.description9 pages, 8 figures; preprint submited to Nucl. Instr. and Meth. A, May 2008
dc.identifierhttps://arxiv.org/abs/0806.0886
dc.identifierhttp://arxiv.org/abs/0806.0886
dc.identifierNucl.Instrum.Meth.A594:266-272,2008
dc.identifierdoi:10.1016/j.nima.2008.06.025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203898
dc.subjectNuclear Experiment
dc.titleThe use of Geant4 for simulations of a plastic beta-detector and its application to efficiency calibration
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