Basic Info
Fission Yield
element
|
Information about Lanthanum-149:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 148.934370 | ± | 0.000320 | amu # |
| Excess Mass (Δ): | -61.134000 | ± | 0.298000 | MeV # |
| Binding Energy: | 1219.167000 | ± | 0.298000 | MeV # |
| β- Decay Energy: | 5.664000 | ± | 0.308000 | 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:
- Half life: 1.05 s ( 1.05 sec., λ = 0.66014 s-1)
- Mode of decay: β- to
(Q = 5.500 MeV)
- Mode of decay: β- + n to
(Q = 1.100 MeV)
Branch ratio: 1.40 %
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)
|