CPB Ljubljana 2018 course book

Radioactive Decay

▪ Electron Capture (EC)

Similar to the competitive β + decay, electron capture is an isobaric nuclei transformation (the mass number A remains unchanged). The EC general disintegration scheme is shown in the following equation

A Z

01

A

00

parent

e 

daughter

Q  



1Z

EC e





22 11

22 10

00

In 10.1%:

aN

.8422 2 eN   

MeV

e