68-ER-156
Atomic Mass Mass Excess
155.931014038149 amu -64.26 MeV

Level energy (MeV) Spin & parity Half-life Mode of decay Branch ratio (%) Decay energy (MeV)
Ground state 0+ 19.5 M 1.0 EC 100 1.22
Ground state 0+ 19.5 M 1.0 A 0 5 3.440

Strong Gamma-rays from Decay of ER-156

Decay mode Half-life Gamma-ray energy (keV) Intensity (%)
EC 19.5 M 1.0 29.90 3.1+- 0.4
EC 19.5 M 1.0 35.30 18.3
EC 19.5 M 1.0 133.5 0.8+- 0.3