CPB Budapest 2017

Radioactive Decay

β +

β + decay

The β + general disintegration scheme is shown in the following equation

+

A Z

A

0

0 0

⇒

+ν+β + Q

parent

daughter

−

+

+ β

1Z

1

e

The β + -particle and the neutrino share the disintegration energy Q β+ . The emitted β + -particle can have any kinetic energy up to the maximum possible, T β+,max , as can be derived from:

E = Q β+,max

β+

and

E

E max , + β

+ β ≈

3