element
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Information about Actinium-215:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 215.006451 | ± | 0.000058 | amu |
| Excess Mass (Δ): | 6.008911 | ± | 0.054123 | MeV |
| Binding Energy: | 1659.696040 | ± | 0.054123 | MeV |
| β- Decay Energy: | -4.914342 | ± | 0.081290 | 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: 9/2-
- Half life: 0.17 s ( 0.17 sec., λ = 4.07734 s-1)
- Mode of decay:
α to
(Q = 7.750 MeV)
Branch ratio: 99.91 %
- Mode of decay: E.C. to
(Q = 3.490 MeV)
Branch ratio: 0.09 %
- 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)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 1621 | 30 ns | 17/2- | | 7.82(16) | | | | | TDPAD | ZP A310 55(83) |
| 1796 | 185 ns | 21/2- | | 9.7(2) | | | | | TDPAD | ZP A310 55(83) |
| 2438+x | 335 ns | 29/2+ | | 15.1(3) | | | | | TDPAD | ZP A310 55(83) |
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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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