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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
EC e
0
0
A
1Z
0
1
A
Z
Q
daughter
e
parent
+ν +
⇒ +
−
−
MeV
.8422 2
eN
aN
e
0
0
22
10
22
11
+ν+
⇒