ADOPTED LEVELS, GAMMAS for 190Bi
Authors: Balraj Singh, and Jun Chen | Citation: Nucl. Data Sheets 169, 1 (2020) | Cutoff date: 15-Oct-2020
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-6036 keV 26 | S(n)= 8610 keV 30 | S(p)= 45 keV 27 | Q(α)= 6862 keV 3 | ||
Reference: 2017WA10 |
References: | |||
A | 194At α decay (286 MS) | B | 194At α decay (323 MS) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | A | (3+) | 6.3 s 1 % α = 90 +10-30 % ε = 10 +30-10 | |||||
45 15 | A | (4+) | 45 15 S | | [M1] | 0 | (3+) | |
121.5 3 | A | (5-) | 175 ns 8 % IT ≈ 100 | 76.5 3 | 100 | E1 | 45 | (4+) |
168.0 5 | A | (6+) | 46.5 5 | 100 | (E1) | 121.5 | (5-) | |
191 65 | B | (10-) | 6.2 s 1 % ε = 30 9 % α = 70 9 | |||||
231.3 5 | B | (9+,10+,11+) | 40.3 5 | 100 | (E1) | 191 | (10-) | |
287.7 5 | B | (9-,10-,11-) | 96.7 5 | 100 | (M1) | 191 | (10-) | |
465.0 5 | B | (-) | 1.0 µs +10-5 % IT ≈ 100 | 274.0 5 | 100 | (E2+M1) | 191 | (10-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
45 | (4+) | 45 15 | [M1] | 16×101 | α=16×101 14 | |
121.5 | (5-) | 175 ns 8 % IT ≈ 100 | 76.5 3 | E1 | 0.194 | B(E1)(W.u.)=2.18E-6 10, α=0.194 4 |
168.0 | (6+) | 46.5 5 | (E1) | 0.744 | α=0.744 25 | |
231.3 | (9+,10+,11+) | 40.3 5 | (E1) | 1.09 | α=1.09 4 | |
287.7 | (9-,10-,11-) | 96.7 5 | (M1) | 11.2 | α=11.2 2 | |
465.0 | (-) | 1.0 µs +10-5 % IT ≈ 100 | 274.0 5 | (E2+M1) | 0.38 | α=0.38 22 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | (3+) | 6.3 s 1 % α = 90 +10-30 % ε = 10 +30-10 | μ=3.85 9 (2017Ba12,2019StZV) α-decay energy=6422 10 (2013Uu01), 6428 6 (2013Ny01), 6431 5 (1991Va04, 2003An26), 6429 5 (1988Hu03), 6429 (1993An19). |
45 | (4+) | Jπ(level): Tentatively assigned from (46.5γ, (E1))-(76.5γ, E1)-(possible 45γ, [M1]) cascade to (3+). | |
121.5 | (5-) | 175 ns 8 % IT ≈ 100 | E(level): From Eγ data, relative to the energy of the 45-keV level kept as fixed. Absolute uncertainty is 15 keV, as for the 45-keV level. Jπ(level): Tentatively assigned from (46.5γ, (E1))-(76.5γ, E1)-(possible 45γ, [M1]) cascade to (3+). |
168.0 | (6+) | E(level): From Eγ data, relative to the energy of the 45-keV level kept as fixed. Absolute uncertainty is 15 keV, as for the 45-keV level. Jπ(level): Tentatively assigned from (46.5γ, (E1))-(76.5γ, E1)-(possible 45γ, [M1]) cascade to (3+). | |
191 | (10-) | 6.2 s 1 % ε = 30 9 % α = 70 9 | μ=2.39 12 (2017Ba12,2019StZV) α-decay energy=6450 5 (2013Ny01), 6456 5 (1991Va04, 2003An26), 6455 5 (1988Hu03), 6455 (1993An19). |
231.3 | (9+,10+,11+) | E(level): From Eγ data, relative to the energy of the 171-keV level kept as fixed. Absolute uncertainty is 57 keV, as for the 171-keV level. | |
287.7 | (9-,10-,11-) | E(level): From Eγ data, relative to the energy of the 171-keV level kept as fixed. Absolute uncertainty is 57 keV, as for the 171-keV level. | |
465.0 | (-) | 1.0 µs +10-5 % IT ≈ 100 | E(level): From Eγ data, relative to the energy of the 171-keV level kept as fixed. Absolute uncertainty is 57 keV, as for the 171-keV level. |
E(level) | E(gamma) | Comments |
45 | 45 | E(γ): not observed, γ probably totally converted (2009An11) M(γ): M1 is required from the intensity balance (2009An11) |
465.0 | 274.0 | M(γ): α(K)exp=0.20 5 determined from (γ)(K x-ray)-coin (2001An11) gives E2 or M1+E2 with δ≈1.5. |
Mass measurements: 2008We02, 1999Sc46
Theory references: consult the NSR database (www.nndc.bnl.gov/nsr/) for about 16 primary references dealing with nuclear structure and other calculations.
Q-value: S(2n)=19548 25, S(2p)=2840 40, Q(εp)=6728 24 (2017Wa10)