element
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Information about Samarium-138:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 137.923540 | ± | 0.000320 | amu # |
| Excess Mass (Δ): | -71.222000 | ± | 0.298000 | MeV # |
| Binding Energy: | 1136.559000 | ± | 0.298000 | MeV # |
| β- Decay Energy: | -9.231000 | ± | 0.499000 | 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: 0+
- Half life: 3.1 min ( 186 sec., λ = 0.0037266 s-1)
- Mode of decay:
E.C. to
(Q = 3.900 MeV)
- Possible parent nuclides:
- E.C. from
- E.C. + p+ 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)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 2903 | 0.55 ns | 10+ | | ~10 | | | | | IPAD | Gensh. Ken. 33 145 (89) |
| | | | | | | | | | |
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
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