element
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Information about Terbium-140:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 139.945540 | ± | 0.000962 | amu # |
| Excess Mass (Δ): | -50.729000 | ± | 0.896000 | MeV # |
| Binding Energy: | 1129.862000 | ± | 0.896000 | MeV # |
| β- Decay Energy: | -7.685000 | ± | 1.272000 | MeV # |
"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.
Radioactive Decay Data:
- Spin: 5
- Half life: 2.4 s ( 2.4 sec., λ = 0.288811 s-1)
- Mode of decay:
E.C. to
(Q = 10.800 MeV)
- Mode of decay: p+ emission to
(Q = -0.300 MeV)
Branch ratio: 0.26 %
- Mode of decay: E.C. + p+ to
(Q = 7.300 MeV)
Branch ratio: 0.26 %
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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