Basic Info
Fission Yield
n-XS summary
element
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Information about Iodine-129:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Iodine-129 is used to check some radioactivity counters in vitro diagnostic
testing laboratories.
Mass-Energy Data:
| Atomic Mass: | 128.904987 | ± | 0.000004 | amu |
| Excess Mass (Δ): | -88.503573 | ± | 0.003400 | MeV |
| Binding Energy: | 1088.239485 | ± | 0.003405 | MeV |
| β- Decay Energy: | 0.193777 | ± | 0.003390 | 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: 15700000 years ( 4.95178×10+14 sec., λ = 1.39979×10-15 s-1)
- Mode of decay:
β- to
(Q = 0.194 MeV)
- 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 | 1.6x10*7 y | 7/2+ | | +2.6210(3) | | | | [2H] | N | PR 82 97 (51) |
| | | | | | -0.482(10) | | [127I] | "Q, MA, R" | PR 90 609 (53)/PR B61 13588 (00) |
| 28 | 16.8 ns | 5/2+ | | +2.805(3) | | | | [129I] | ME | PL 106B 457 (79) |
| | | | | | -0.42(2) | | | ME | JP B20 5595 (87) |
| | | | | | -0.598(13) | | [129I] | "ME, R" | NIM 105 509 (72)/PR B61 13588 (00) |
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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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