Basic Info
n-XS summary
element
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Information about Berkelium-249:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 249.074980 | ± | 0.000003 | amu |
| Excess Mass (Δ): | 69.843351 | ± | 0.003143 | MeV |
| Binding Energy: | 1864.027748 | ± | 0.003160 | MeV |
| β- Decay Energy: | 0.124000 | ± | 0.001414 | 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: 320 days ( 2.7648×10+07 sec., λ = 2.50704×10-08 s-1)
- Mode of decay:
β- to
(Q = 0.125 MeV)
- Mode of decay:
α to
(Q = 5.526 MeV)
Branch ratio: 0.0014 %
- Mode of decay: SF
Branch ratio: 4.7E-8 %
- Possible parent nuclides:
- β- 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)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 0 | 320 d | 7/2+ | | 2.0(4) | | | | [241Am] | EPR | PL 44A 527 (73) |
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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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