element
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Information about Gadolinium-149:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 148.919336 | ± | 0.000005 | amu |
| Excess Mass (Δ): | -75.137623 | ± | 0.004286 | MeV |
| Binding Energy: | 1227.694104 | ± | 0.004291 | MeV |
| β- Decay Energy: | -3.637673 | ± | 0.004499 | 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: 9.28 days ( 801792 sec., λ = 8.64498×10-07 s-1)
- Mode of decay:
E.C. to
(Q = 1.314 MeV)
- Mode of decay: α to
(Q = 3.100 MeV)
Branch ratio: 0.00043 %
- 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)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 0 | 9.4 d | 7/2- | | 0.88(4) | | | | | NO/S | HFI 34 69 (87) |
| | | | 0.97(6) | | | | | NO/S | HFI 34 119 (87) |
| | | | 1.1(2) | | | | | NO/S | NP A445 189 (86) |
| 165 | 1.7 ns | 5/2- | | -0.9(2) | | | | | IPAC/TDPAC | Cf77Tokyo 379 (77) |
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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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