element
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Information about Iridium-191:
| | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
Atomic Mass: | 190.960591 | ± | 0.000003 | amu |
Excess Mass (Δ): | -36.709063 | ± | 0.002870 | MeV |
Binding Energy: | 1518.090508 | ± | 0.002882 | MeV |
β- Decay Energy: | -1.018553 | ± | 0.003508 | 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: 37.3%
- Spin: 3/2+
- Stable Isotope
Meta state at 0.171 Mev
- Spin: 11/2-
- Half life: 4.94 s ( 4.94 sec., λ = 0.140313 s-1)
- Mode of decay: γ (IT)  (Q = 0.171 MeV)
Meta state at 2.047 Mev
4.94 - Half life: 5.5 s ( 5.5 sec., λ = 0.126027 s-1)
- Mode of decay: γ (IT)  (Q = 2.047 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+ | | +0.1507(6) | | | | | AB/D | PL 140B 17 (84) |
| | | | +0.1461(6) | | | | | N | PR 165 506 (68)/PR 175 696 (68) |
| | | | | | +0.816(9) a | | | "Mu-X, O" | PR C29 1830 (84)/PR 87 1048 (52) |
| | | | | | +0.8(2) st | | | AB | ZP A286 333 (78) |
82 | 3.8 ns | 1/2+ | | +0.600(6) | | | | [191Ir] | "ME, R" | HFI 13 149 (83) |
129 | 123 ps | 5/2+ | | +0.86(6) | | | | [198Pt 407] | TF | HFI 97/98 479 (96) |
| | | | +0.45(2) | | | | | "IMPAC, TF, R" | NP A456 349 (86) |
| | | | +0.48(4) | | | | | "IPAD, ME" | IzF 44 1778 (80) |
171 | 4.9 s | 11/2- | | 6.03(4) | | | | | NMR/ON | PL 36B 328 (71)/PR C9 2063 (74) |
| | | | sign positive | | | | | NO/CP | ZP A340 235 (91) |
| | | | sign positive | | | | | NMR/ON(b) | PR C54 1129 |
179 | 39 ps | 3/2+ | | +1.4(4) | | | | | IPAC | IzUz 1973n4 79 (73) |
343 | 20 ps | 7/2+ | | +1.35(11) | | | | [198Pt 407] | TF | HFI 97/98 479 (96) |
| | | | +1.7(3) | | | | [191Ir 129] | "TF, IMPAC" | NP A456 349 (86) |
503 | 9.6 ps | 9/2+ | | +2.4(2) | | | | [198Pt 407] | TF | HFI 97/98 479 (96) |
| | | | +3.1(11) | | | | [191Ir 129] | TF | NP A456 349 (86) |
686 | 2.7 ps | 7/2+ | | +0.8(3) | | | | [198Pt 407] | TF | HFI 97/98 479 (96) |
| | | | +0.5(7) | | | | [191Ir 129] | TF | NP A456 349 (86) |
832 | 2.8 ps | 11/2+ | | +3.4(9) | | | | [198Pt 407] | TF | HFI 97/98 479 (96) |
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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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