Basic Info
Fission Yield
element
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Information about Antimony-129:
| | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
Atomic Mass: | 128.909150 | ± | 0.000023 | amu |
Excess Mass (Δ): | -84.626131 | ± | 0.021428 | MeV |
Binding Energy: | 1085.926750 | ± | 0.021428 | MeV |
β- Decay Energy: | 2.379500 | ± | 0.021213 | 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: 7/2+
- Half life: 4.40 h ( 15840 sec., λ = 4.37593×10-05 s-1)
- Mode of decay:
β- to
 (Q = 2.380 MeV)
Meta state at 1.851 Mev
- Spin: 19/2-)
4.40
- Half life: 17.7 min ( 1062 sec., λ = 0.000652681 s-1)
- Mode of decay:
β- to
 (Q = 4.231 MeV)
Branch ratio: 85.00 %
- Mode of decay: γ (IT)  (Q = 1.851 MeV)
Branch ratio: 15.00 %
- Possible parent nuclides:
- β- 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 | 4.4 h | 7/2+ | | 2.79(2) | | | | [123Sb] | NMR/ON | PR C53 124 (96) |
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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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