64-GD-155
Atomic Mass Mass Excess
154.922618921099 amu -72.080 MeV

Level energy (MeV) Spin & parity Half-life Mode of decay Branch ratio (%) Decay energy (MeV)
Ground state 3/2- STABLE 0
.121 11/2- 31.97 MS 0.27 IT 100 .121

Strong Gamma-rays from Decay of GD-155

Decay mode Half-life Gamma-ray energy (keV) Intensity (%)
IT 31.97 MS 0.27 13.47 7.1+- 0.3
IT 31.97 MS 0.27 86.545 70