element
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Information about Thulium-155:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 154.939192 | ± | 0.000014 | amu |
| Excess Mass (Δ): | -56.642687 | ± | 0.013317 | MeV |
| Binding Energy: | 1253.715337 | ± | 0.013318 | MeV |
| β- Decay Energy: | -6.149000 | ± | 0.298000 | 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: 11/2-)
- Half life: 21.6 s ( 21.6 sec., λ = 0.0320901 s-1)
- Mode of decay:
E.C. to
(Q = 5.580 MeV)
Branch ratio: 98.10 %
- Mode of decay:
α to
(Q = 4.571 MeV)
Branch ratio: 1.90 %
Meta state at 0.041 Mev
- Spin: (1/2+)
21.6
- Half life: 45 s ( 45 sec., λ = 0.0154033 s-1)
- Mode of decay:
E.C. to
(Q = 5.621 MeV)
Branch ratio: >92.00 %
- Mode of decay:
α to
(Q = 4.612 MeV)
Branch ratio: <8.00 %
- Possible parent nuclides:
- E.C. from
- 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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