64-Gd-139
basic
element
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64-gadolinium-139
- Atomic Mass: 138.9380800 +- 0.0005400 amu #
- Excess Mass: -57678.000 +- 503.000 keV #
- Binding Energy: 1129521.000 +- 503.000 keV #
- Beta Decay Energy: B- -9268.000 +- 861.000 keV #
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra,
Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
- Half life: 4.9 s
- Mode of decay: EC to Eu-139
- Mode of decay: EC + Proton to Sm-138
- Possible parent nuclides:
- Proton emission from Tb-140
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)
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