Efficiency beta batteries with direct energy conversion

Sergey V. Bulyarskiy, Ivan E. Abanin, Alexander V. Lakalin

Article ID: 529
Vol 1, Issue 2, 2018


Abstract


The properties of the beta batteries are compared, which are made on the basis of the different β-isotopes with beta decay. Tritium and Ni-63 make it possible to make β-sources of high activity, without harmful associated emissions, with low self-absorption, emitting high-energy β-electrons that penetrate deep into the semiconductor and generate a large number of electron-hole pairs. The efficiency of beta batteries needs to be analyzed based on the real energy distribution of β-electrons. It makes possible to obtain the real value of the energy absorbed inside the β-source, correctly estimate the amount of self-absorption of the β-electrons and part of the β-electronsthere is a penetrate into the semiconductor, the number of electrons and holes that are generated in the semiconductor, and the magnitude of the idling voltage. Formulas for these quantities are calculated in this paper.


Keywords


isotopes; tritium; nickel-63; sources of beta radiation; self-absorption; surface activity; β-electrons; reflection coef icient; secondary electrons; idling voltage.

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References


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DOI: https://doi.org/10.24294/can.v1i2.529

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