ADOPTED LEVELS, GAMMAS for 186Tl
Authors: J. C. Batchelder and A. M. Hurst, M. S. Basunia | Citation: Nucl. Data Sheets 183, 1 (2022) | Cutoff date: 1-Mar-2022
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-5202 keV 23 | S(n)= 8197×103 keV 29 | S(p)= 988 keV 25 | Q(α)= 5.996 keV 26 | ||
| Reference: 2021Wa16 |
| References: | |||
| A | 186Tl IT decay | B | 190Bi α decay: LOW SPIN |
| C | 190Bi α decay: HIGH SPIN | D | 142Nd(48Ti,p3nγ) |
| E | 159Tb(32S,5nγ),155Gd(35Cl,4nγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | B | (2-) | 3.4 s +5-4 % α = ? | |||||
| 40 39 | A CDE | (7+) | 27.5 s 10 % ε ≈ 99.994 % α ≈ 0.006 | |||||
| 104.6 9 | B | (4+) | 105 1 | 100 | M2 | 0.0 | (2-) | |
| 129 39 | A C | (6+,7+,8+) | ≤ 0.4 ns | 89.5 4 | 100 | M1 | 40 | (7+) |
| 215.2 9 | B | (2-) | 111 1 | 100 | 104.6 | (4+) | ||
| 293.7 3 | B | (3+) | 11 ns 4 | 79 1 293.7 3 | | (E1) E1 | 215.2 0.0 | (2-) (2-) |
| 295 39 | C | 255 1 | 100 | 40 | (7+) | |||
| 314.0 10 | B | 314 1 | 100 | 0.0 | (2-) | |||
| 321 39 | C | 281 1 | 100 | 40 | (7+) | |||
| 396 39 | A C | 267 356 1 | | 129 40 | (6+,7+,8+) (7+) | |||
| 414 39 | A CDE | (10-) | 3.32 s 11 % ε > 5.9 3 % IT < 94.1 3 | 374.2 1 | 100 | E3 | 40 | (7+) |
| 481 39 | C | 352 441 1 | | 129 40 | (6+,7+,8+) (7+) | |||
| 506.7 11 | B | 213 1 | 100 | 293.7 | (3+) | |||
| 690 39 | DE | (11-) | 275.9 1 | 100 | D | 414 | (10-) | |
| 1011 39 | DE | (12-) | 321.7 4 597 1 | 100 100 | D+Q | 690 414 | (11-) (10-) | |
| 1255 39 | D | (13-) | 243.4 3 | 100 | D+Q | 1011 | (12-) | |
| 1363 39 | D | (13-) | 352.1 4 672.9 5 | 91 26 100 35 | D | 1011 690 | (12-) (11-) | |
E(level): From a least-squares fit to γ-ray energies except as noted.
E(γ): From (48Ti,p3nγ) except as noted.
M(γ): From 142Nd(48Ti,p3nγ), except otherwise noted.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 104.6 | (4+) | 105 1 | M2 | 60.5 | α=60.5 24, α(K)=39.5 15, α(L)=15.7 7, α(M)=4.03 18, α(N)=1.03 5, α(O)=0.196 9, α(P)=0.0156 7 | |
| 129 | (6+,7+,8+) | ≤ 0.4 ns | 89.5 4 | M1 | 11.76 | B(M1)(W.u.)>0.0059, α=11.76 22, α(K)=9.58 18, α(L)=1.67 4, α(M)=0.390 8, α(N)=0.0985 19, α(O)=0.0191 4, α(P)=0.00180 4 |
| 293.7 | (3+) | 11 ns 4 | 79 1 | (E1) | 0.167 | α=0.167 7, α(L)=0.128 5, α(M)=0.0301 12, α(N)=0.0074 3, α(O)=0.00134 5, α(P)=8.6×10-5 3 |
| (3+) | 11 ns 4 | 293.7 3 | E1 | 0.0301 | α=0.0301, α(K)=0.0247 4, α(L)=0.00414 6, α(M)=0.000962 14, α(N)=0.000241 4, α(O)=4.55×10-5 7, α(P)=3.72E-6 6 | |
| 414 | (10-) | 3.32 s 11 % ε > 5.9 3 % IT < 94.1 3 | 374.2 1 | E3 | 0.249 | B(E3)(W.u.)=0.000159 11, α=0.249, α(K)=0.1009 15, α(L)=0.1105 16, α(M)=0.0292 5, α(N)=0.00736 11, α(O)=0.001306 19, α(P)=6.72E-5 10 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (2-) | 3.4 s +5-4 % α = ? | %α - 2020St11 identified α=5670~keV 51 decay from this level. Unable to extract the %α branching due to poor energy resolution. E(level): %α - 2020St11 identified α=5670~keV 51 decay from this level. Unable to extract the %α branching due to poor energy resolution. |
| 40 | (7+) | 27.5 s 10 % ε ≈ 99.994 % α ≈ 0.006 | μ=0.497 9 (1995Sc54) δ<r2>(186mTl,205Tl)=-0.9324 fm2 15 (unc of iso. shift) 650 (sys) (reported in 2013Ba41 based on data from 1995Sc54). E(level): δ<r2>(186mTl,205Tl)=-0.9324 fm2 15 (unc of iso. shift) 650 (sys) (reported in 2013Ba41 based on data from 1995Sc54). |
| 414 | (10-) | 3.32 s 11 % ε > 5.9 3 % IT < 94.1 3 | μ=2.56 6 (2019StZV,2013Ba41) δ<r2>(186mTl,205Tl)=-0.719 fm2 23 (unc of iso. shift) 50 (sys) (2013Ba41). E(level): δ<r2>(186mTl,205Tl)=-0.719 fm2 23 (unc of iso. shift) 50 (sys) (2013Ba41). |
| E(level) | E(gamma) | Comments |
| 104.6 | 105 | E(γ): From 2003An26 - 190Bi α decay: low spin M(γ): From α(K)exp=36~5 (2003An26 - 190Bi α decay: low spin). |
| 129 | 89.5 | E(γ): From 2003An26 - 190Bi α decay: high spin M(γ): From α(K)exp=10.3 9 (2003An26-190Bi α decay: high spin) |
| 215.2 | 111 | E(γ): From 2003An26 - 190Bi α decay: low spin |
| 293.7 | 79 | M(γ): From αtot=0.3 2, deduced by authors of 2003An26 (190Bi α decay: low spin) assuming cascade character of 105γ and 79γ. αtheo=0.17 1 (E1), 3.1 1 (M1), and 16 1 (E2). | 293.7 | E(γ): From 2003An26 - 190Bi α decay: low spin M(γ): From α(K)exp in 190Bi α decay: low spin |
| 295 | 255 | E(γ): From 2003An26 - 190Bi α decay: high spin |
| 314.0 | 314 | E(γ): From 2003An26 - 190Bi α decay: low spin |
| 321 | 281 | E(γ): From 2003An26 - 190Bi α decay: high spin |
| 396 | 267 | E(γ): From 2003An26 - 190Bi α decay: high spin | 356 | E(γ): From 2003An26 - 190Bi α decay: high spin |
| 414 | 374.2 | E(γ): From 186Tl IT decay. Other: 374.0~2 (32S,5nγ),(35Cl,4nγ). M(γ): From α(K)exp=0.095 17 and K/L=1.5 9 in 186Tl IT decay. |
| 481 | 352 | E(γ): From 2003An26 - 190Bi α decay: high spin | 441 | E(γ): From 2003An26 - 190Bi α decay: high spin |
| 506.7 | 213 | E(γ): From 2003An26 - 190Bi α decay: low spin |
| 1363 | 352.1 | I(γ): from 142Nd(48Ti,p3nγ). | 672.9 | I(γ): from 142Nd(48Ti,p3nγ). |
2020St11: 186Tl from U(p, X), E=1.4 GeV spallation reaction; measured Eα, Iα, Eγ, Iγ, ce, Eβ, aγ-, aγγ- and α(x ray)-coin, half-lives of 186Tl (2-) ground state and (10-) isomer. Spede spectrometer and five HPGe clover detectors. Deduced levels, J, π, (2-) as the ground state, energies of the (7+) and 10(-) isomers, upper limit of %IT decay and lower limit of %β+ branching ratios from the decay of the (10-) isomer of 186Tl.