A model for Ni-63 source for betavoltaic application

A mathematical model of Ni-63 source for betavoltaic batteries is presented, based on Monte Carlo calculation. Trajectories of beta particles are simulated in Ni-63 source until their escape or total energy dissipation. Analysis of the effect of physical and technological factors on the performance...

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Veröffentlicht in:	arXiv.org 2019-07
Hauptverfasser:	Belghachi, Abderrahmane, Bozkurt, Kutsal, Moughli, Hassane, Özdemir, Orhan, Amiri, Benameur, Talhi, Abdelkrim
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Attenuation coefficients Backscattering Batteries Beta decay Beta particles Beta rays Computer simulation Emissions control Empirical analysis Energy conversion efficiency Energy dissipation Energy spectra Physics - Applied Physics Physics - Instrumentation and Detectors Physics - Nuclear Experiment Scattering Substrates Surface chemistry Thickness Thin films
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Beschreibung
Zusammenfassung:	A mathematical model of Ni-63 source for betavoltaic batteries is presented, based on Monte Carlo calculation. Trajectories of beta particles are simulated in Ni-63 source until their escape or total energy dissipation. Analysis of the effect of physical and technological factors on the performance of a source is carried out. Special attention is given to self-absorption and substrate backscattering because of their impact on power emission. Addition of a protective layer diminishes the source emission because of further absorption. The model has been tested successfully for Ni-63/GaN structure.
ISSN:	2331-8422
DOI:	10.48550/arxiv.1903.09098