element
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Information about Iridium-172:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 171.970643 | ± | 0.000430 | amu # |
| Excess Mass (Δ): | -27.346000 | ± | 0.401000 | MeV # |
| Binding Energy: | 1355.372000 | ± | 0.401000 | MeV # |
| β- Decay Energy: | -6.272000 | ± | 0.402000 | 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: (3+)
- Half life: 4.4 s ( 4.4 sec., λ = 0.157533 s-1)
- Mode of decay:
E.C. to
(Q = 9.800 MeV)
Branch ratio: 98.00 %
- Mode of decay:
α to
(Q = 5.991 MeV)
Branch ratio: ~2.00 %
Meta state at 0.139 Mev
- Spin: (7+)
4.4
- Half life: 2.0 s ( 2 sec., λ = 0.346574 s-1)
- Mode of decay:
E.C. to
(Q = 9.939 MeV)
Branch ratio: 77.00 %
- Mode of decay:
α to
(Q = 6.130 MeV)
Branch ratio: 23.00 %
- Possible parent nuclides:
- α 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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