element
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Information about Barium-129:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 128.908674 | ± | 0.000012 | amu |
| Excess Mass (Δ): | -85.069842 | ± | 0.011454 | MeV |
| Binding Energy: | 1082.458693 | ± | 0.011456 | MeV |
| β- Decay Energy: | -3.720000 | ± | 0.050000 | 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: 1/2+
- Half life: 2.23 h ( 8028 sec., λ = 8.63412×10-05 s-1)
- Mode of decay:
E.C. to
(Q = 2.432 MeV)
Meta state at 0.008 Mev
- Spin: 7/2+
2.23
- Half life: 2.16 h ( 7776 sec., λ = 8.91393×10-05 s-1)
- Mode of decay:
E.C. to
(Q = 0 2.440 MeV)
Branch ratio: <=100.00 %
- Mode of decay: γ (IT) to
(Q = 0.008 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)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 0 | 2.23 h | 1/2+ | | -0.40(2) | | | | "[135,137Ba]" | "ABLRFS, R" | NP A403 234 (83)/ZP A291 219 (79) |
| | | | | | +1.60(13) st | | "[135,137Ba]" | "ABLRFS, R" | NP A403 234 (83)/ZP A291 219 (79) |
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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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