element
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Information about Promethium-139:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 138.916760 | ± | 0.000063 | amu |
| Excess Mass (Δ): | -77.537722 | ± | 0.058437 | MeV |
| Binding Energy: | 1151.728035 | ± | 0.058437 | MeV |
| β- Decay Energy: | -5.162512 | ± | 0.060308 | 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: (5/2)+
- Half life: 4.15 min ( 249 sec., λ = 0.00278372 s-1)
- Mode of decay:
E.C. to
(Q = 4.520 MeV)
Meta state at 0.189 Mev
- Spin: 11/2)-
4.15
- Half life: 180 ms ( 0.18 sec., λ = 3.85082 s-1)
- Mode of decay: γ (IT) (Q = 0.189 MeV)
- Mode of decay:
E.C. to
(Q = 4.709 MeV)
- Possible parent nuclides:
- E.C. from
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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