Abstract
This chapter focuses on various aspects of beta decay, including the emission of beta particles and the electron capture (EC) decay process. The various types of beta decay discussed include negatron emission, negatron decay energy and calculations of decay energy, inverse beta decay, neutrino emission in beta decay and neutrino mass, positron emission, calculation of positron decay energy, and the relationship between nuclear neutron/proton ratios and type of beta decay. The EC decay process and the competition between EC and position emission as decay modes are described. Other modes of beta decay discussed include branching negatron, positron and EC decay, double-beta decay, and neutrinoless double-beta decay and the Majorana neutrino. The mechanisms of beta-particle interactions in matter are described. The ranges of positrons and negatrons in matter are described relative to that of alpha particles of the same energy. The concepts of stopping power and linear energy transfer (LET) and the calculated values of stopping power and LET for different radiation types are also discussed.
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