Basic Info
Fission Yield
n-XS summary
element
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Information about Gadolinium-157:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 156.923957 | ± | 0.000003 | amu |
| Excess Mass (Δ): | -70.833880 | ± | 0.002951 | MeV |
| Binding Energy: | 1287.960943 | ± | 0.002958 | MeV |
| β- Decay Energy: | -0.060053 | ± | 0.000297 | 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:
- Atomic Percent Abundance: 15.65%
- Spin: 3/2-
- Stable Isotope
Meta state at 0.426 Mev
- Spin: 11/2-
- Half life: 18.5 µs ( 1.85×10-05 sec., λ = 37467.4 s-1)
- Mode of decay: γ (IT) (Q = 0.426 MeV)
- Possible parent nuclides:
- β- from
- E.C. 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 | stable | 3/2- | | -0.3398(7) | | | | [155Gd] | "AB/D, ENDOR" | JP B2 122 (69)/JP C2 862 (69) |
| | | | -0.3373(6) | | | | | ENDOR | JP C11 203 (78) |
| | | | | | +1.36(6) st | | | ABLS | PR A42 1416 (90) |
| | | | | | +1.35(3) a | | | Mu-X | PR C27 1772 (83) |
| | | | | | +1.36(2) a | | | "Mu-X, O" | PL 108B 8 (82)/ZETF 37 882 (59) |
| | | | | | 1.34(7) st | | | O | ZP A289 361 (79) |
| | | | | | +1.38(2) | | [155Gd] | AB | JP B2 122 (69) |
| 55 | 0.13 ns | 5/2- | | | | -0.46(2) a | | | Mu-X | PR C27 1772 (83) |
| 64 | 0.46 ms | 5/2+ | | -0.464(11) | | | | [157Gd] | "ME, R" | NP A233 385 (74) |
| | | | | | +2.45(5) | | [157Gd] | ME | NP A233 385 (74) |
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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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