Basic Info
Fission Yield
n-XS summary
element
|
Information about Yttrium-91:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 90.907303 | ± | 0.000003 | amu |
| Excess Mass (Δ): | -86.346300 | ± | 0.002805 | MeV |
| Binding Energy: | 790.324893 | ± | 0.002808 | MeV |
| β- Decay Energy: | 1.544833 | ± | 0.001834 | 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: 1/2-
- Half life: 58.51 days ( 5.05526×10+06 sec., λ = 1.37114×10-07 s-1)
- Mode of decay:
β- to
(Q = 1.544 MeV)
Meta state at 0.556 Mev
- Spin: 9/2+
58.51
- Half life: 49.71 min ( 2982.6 sec., λ = 0.000232397 s-1)
- Mode of decay: γ (IT) (Q = 0.556 MeV)
- Mode of decay:
β- to
(Q = 2.100 MeV)
Branch ratio: <1.50 %
- Possible parent nuclides:
- β- 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 | 58.5 d | 1/2- | | 0.1641(8) | | | | [89Y] | AB | PR 128 1740 (62) |
| 556 | 49.7m | 9/2+ | | 5.96(4) | | | | | NMR/ON | PR C44 104 (91) |
| | | | 5.97(7) | | | | | NMR/ON | PRL 66 96 (91) |
| | | | | | | | | | |
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
|