Change in 7Be half-life in host media

Abstract

First-principle calculations within the density functional theory framework are used to study the probability of electron capture for the 7Be nucleus. For this purpose, electron density at the 7Be nucleus is computed in Al, Au, Pd, Pt, and Pb environments. Our results show that the half-life of 7Be is changed by implanting 7Be in host environments. Electron affinity of the media and confinement effects are responsible for the change in the half-life of 7Be nucleus. Moreover, electric potential at the 7Be nucleus is calculated. Results show that variations in electric potential are usually consistent with those in electron density at the 7Be nucleus.