ADOPTED LEVELS, GAMMAS for 167Os
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 191, 1 (2023) | Cutoff date: 22-Aug-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-9430 keV 80 | S(n)= 9140 keV 80 | S(p)= 1.95×103 keV 12 | Q(α)= 5980 keV 60 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 167Os IT decay (700 NS) | B | 171Pt α decay (45.5 MS) |
| C | 92Mo(78Kr,2pnγ) | D | 112Sn(58Ni,2pnγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABC | (7/2-) | 839 ms 5 % ε = 49 5 % α = 51 5 | |||||
| 87.10 10 | A C | (9/2-) | 87.1 1 | 100 | M1 | 0.0 | (7/2-) | |
| 434.7 8 | A CD | (13/2+) | 700 ns 10 % IT = 100 | 347.6 8 | 100 | M2 | 87.10 | (9/2-) |
| 451.50 10 | C | (11/2-) | 451.5 1 | 100 | (Q) | 0.0 | (7/2-) | |
| 502.90 22 | C | (13/2-) | 415.8 2 | 100 | (Q) | 87.10 | (9/2-) | |
| 797.6 8 | CD | (17/2+) | 13.9 ps 28 | 362.9 1 | 100 | E2 | 434.7 | (13/2+) |
| 1060.80 14 | C | (15/2-) | 609.3 1 | 100 | Q | 451.50 | (11/2-) | |
| 1091.40 25 | C | (17/2-) | 588.5 1 | 100 | 502.90 | (13/2-) | ||
| 1096.40 22 | C | 644.9 2 | 100 | 451.50 | (11/2-) | |||
| 1340.8 8 | CD | (21/2+) | 543.2 1 | 100 | Q | 797.6 | (17/2+) | |
| 1758.20 17 | C | (19/2-) | 697.4 1 | 100 | 1060.80 | (15/2-) | ||
| 1789.9 3 | C | (21/2-) | 698.5 1 | 100 | 1091.40 | (17/2-) | ||
| 1811.2 3 | C | 750.4 3 | 100 | 1060.80 | (15/2-) | |||
| 1995.9 8 | CD | (25/2+) | 655.3 1 | 100 | Q | 1340.8 | (21/2+) | |
| 2148.5 8 | CD | (23/2-) | 807.5 1 | 100 | D | 1340.8 | (21/2+) | |
| 2206.2 8 | C | (23/2-) | 865.4 2 | 100 | D | 1340.8 | (21/2+) | |
| 2331.6 8 | CD | 990.8 1 | 100 | 1340.8 | (21/2+) | |||
| 2417.2 10 | C | 1076.4 6 | 100 | 1340.8 | (21/2+) | |||
| 2509.8 8 | C | (27/2-) | 303.6 2 513.9 2 | 100 10 51 13 | 2206.2 1995.9 | (23/2-) (25/2+) | ||
| 2556.8 5 | C | (25/2-) | 766.9 4 | 100 | 1789.9 | (21/2-) | ||
| 2627.7 11 | C | 210.5 4 | 100 | 2417.2 | ||||
| 2628.3 8 | CD | (27/2-) | 479.6 1 632.5 1 | 100 10 98 13 | 2148.5 1995.9 | (23/2-) (25/2+) | ||
| 2680.0 8 | CD | (29/2+) | 684.1 1 | 100 | Q | 1995.9 | (25/2+) | |
| 2820.0 9 | CD | 488.4 4 | 100 | 2331.6 | ||||
| 2897.2 9 | C | 901.3 4 | 100 | 1995.9 | (25/2+) | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 3044.1 9 | C | (31/2-) | 534.3 4 | 100 | 2509.8 | (27/2-) | ||
| 3125.9 8 | C | (31/2-) | 497.6 1 | 100 | 2628.3 | (27/2-) | ||
| 3317.9 9 | C | (33/2+) | 637.9 3 | 100 | 2680.0 | (29/2+) | ||
| 3716.4 10 | C | (35/2-) | 672.3 2 | 100 | 3044.1 | (31/2-) | ||
| 3984.1 10 | C | (37/2+) | 666.2 4 | 100 | 3317.9 | (33/2+) | ||
E(level): From a least-squares fit to γ-ray energies. Normalized χ2=4.1 in comparison to critical χ2=3.8. It is possible that some of the uncertainties in Eγ values are underestimated.
Jπ(level): As proposed by 2009Od02 in 92Mo(78Kr,2pnγ) based on systematics, comparisons with theoretical predictions, and angular distributions for selected transitions
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - ν(f7/2,h9/2),α=-1/2 | |||||||
| 0.0 | (7/2-) | 839 ms 5 % ε = 49 5 % α = 51 5 | |||||
| 451.50 10 | (11/2-) | 451.5 1 | 100 | (Q) | 0.0 | (7/2-) | |
| 1060.80 14 | (15/2-) | 609.3 1 | 100 | Q | 451.50 | (11/2-) | |
| 1758.20 17 | (19/2-) | 697.4 1 | 100 | 1060.80 | (15/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - ν(f7/2,h9/2),α=+1/2 | |||||||
| 87.10 10 | (9/2-) | ||||||
| 502.90 22 | (13/2-) | 415.8 2 | 100 | (Q) | 87.10 | (9/2-) | |
| 1091.40 25 | (17/2-) | 588.5 1 | 100 | 502.90 | (13/2-) | ||
| 1789.9 3 | (21/2-) | 698.5 1 | 100 | 1091.40 | (17/2-) | ||
| 2556.8 5 | (25/2-) | 766.9 4 | 100 | 1789.9 | (21/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - νi13/2, yrast band | |||||||
| 434.7 8 | (13/2+) | 700 ns 10 % IT = 100 | |||||
| 797.6 8 | (17/2+) | 13.9 ps 28 | 362.9 1 | 100 | E2 | 434.7 | (13/2+) |
| 1340.8 8 | (21/2+) | 543.2 1 | 100 | Q | 797.6 | (17/2+) | |
| 1995.9 8 | (25/2+) | 655.3 1 | 100 | Q | 1340.8 | (21/2+) | |
| 2680.0 8 | (29/2+) | 684.1 1 | 100 | Q | 1995.9 | (25/2+) | |
| 3317.9 9 | (33/2+) | 637.9 3 | 100 | 2680.0 | (29/2+) | ||
| 3984.1 10 | (37/2+) | 666.2 4 | 100 | 3317.9 | (33/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 4 - Possible 3-quasineutron band. | |||||||
| 2206.2 8 | (23/2-) | ||||||
| 2509.8 8 | (27/2-) | 303.6 2 513.9 2 | 100 10 51 13 | 2206.2 1995.9 | (23/2-) (25/2+) | ||
| 3044.1 9 | (31/2-) | 534.3 4 | 100 | 2509.8 | (27/2-) | ||
| 3716.4 10 | (35/2-) | 672.3 2 | 100 | 3044.1 | (31/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 5 - Band based on (23/2-). | |||||||
| 2148.5 8 | (23/2-) | ||||||
| 2628.3 8 | (27/2-) | 479.6 1 632.5 1 | 100 10 98 13 | 2148.5 1995.9 | (23/2-) (25/2+) | ||
| 3125.9 8 | (31/2-) | 497.6 1 | 100 | 2628.3 | (27/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 87.10 | (9/2-) | 87.1 1 | M1 | 8.5 | α=8.5 3, α(K)=6.99 22, α(L)=1.14 4, α(M)=0.263 8, α(N)=0.0641 20, α(O)=0.0111 4, α(P)=0.00082 3 | |
| 434.7 | (13/2+) | 700 ns 10 % IT = 100 | 347.6 8 | M2 | 0.629 | B(M2)(W.u.)=0.176 3, α=0.629 10, α(K)=0.491 9, α(L)=0.1032, α(M)=0.0245, α(N)=0.00602 |
| 797.6 | (17/2+) | 13.9 ps 28 | 362.9 1 | E2 | 0.0528 | B(E2)(W.u.)=112 23, α=0.0528 8 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (7/2-) | 839 ms 5 % ε = 49 5 % α = 51 5 | %ε+%β+ from 100-%α. E(level): ν(f7/2,h9/2),α=-1/2. |
| 87.10 | (9/2-) | E(level): ν(f7/2,h9/2),α=+1/2. | |
| 434.7 | (13/2+) | 700 ns 10 % IT = 100 | E(level): νi13/2, yrast band. |
| 451.50 | (11/2-) | E(level): ν(f7/2,h9/2),α=-1/2. | |
| 502.90 | (13/2-) | E(level): ν(f7/2,h9/2),α=+1/2. | |
| 797.6 | (17/2+) | 13.9 ps 28 | E(level): νi13/2, yrast band. |
| 1060.80 | (15/2-) | E(level): ν(f7/2,h9/2),α=-1/2. | |
| 1091.40 | (17/2-) | E(level): ν(f7/2,h9/2),α=+1/2. | |
| 1340.8 | (21/2+) | E(level): νi13/2, yrast band. | |
| 1758.20 | (19/2-) | E(level): ν(f7/2,h9/2),α=-1/2. | |
| 1789.9 | (21/2-) | E(level): ν(f7/2,h9/2),α=+1/2. | |
| 1995.9 | (25/2+) | E(level): νi13/2, yrast band. | |
| 2148.5 | (23/2-) | E(level): Band based on (23/2-). | |
| 2206.2 | (23/2-) | E(level): Possible 3-quasineutron band. | |
| 2331.6 | E(level): Possible 3-quasineutron state. | ||
| 2509.8 | (27/2-) | E(level): Possible 3-quasineutron band. | |
| 2556.8 | (25/2-) | E(level): ν(f7/2,h9/2),α=+1/2. | |
| 2628.3 | (27/2-) | E(level): Band based on (23/2-). | |
| 2680.0 | (29/2+) | E(level): νi13/2, yrast band. | |
| 2820.0 | E(level): Possible 3-quasineutron state. | ||
| 3044.1 | (31/2-) | E(level): Possible 3-quasineutron band. | |
| 3125.9 | (31/2-) | E(level): Band based on (23/2-). | |
| 3317.9 | (33/2+) | E(level): νi13/2, yrast band. | |
| 3716.4 | (35/2-) | E(level): Possible 3-quasineutron band. | |
| 3984.1 | (37/2+) | E(level): νi13/2, yrast band. |
| E(level) | E(gamma) | Comments |
| 87.10 | 87.1 | M(γ): from 167Os IT decay |
| 797.6 | 362.9 | E(γ): 362.8 2 in 112Sn(58Ni,2pnγ) |
| 1340.8 | 543.2 | E(γ): 542.8 2 in 112Sn(58Ni,2pnγ) |
| 1995.9 | 655.3 | E(γ): 655.1 2 in 112Sn(58Ni,2pnγ) |
| 2148.5 | 807.5 | E(γ): 807.0 3 in 112Sn(58Ni,2pnγ) |
| 2331.6 | 990.8 | E(γ): 988.8 3 in 112Sn(58Ni,2pnγ) |
| 2628.3 | 479.6 | E(γ): 479.8 3 in 112Sn(58Ni,2pnγ) | 632.5 | E(γ): 631.5 3 in 112Sn(58Ni,2pnγ) I(γ): other: 55 14 in 112Sn(58Ni,2pnγ). Unweighted average is 77 22 |
| 2680.0 | 684.1 | E(γ): 683.4 3 in 112Sn(58Ni,2pnγ) |
| 2820.0 | 488.4 | E(γ): 487.6 3 IN in 112Sn(58Ni,2pnγ) |
1977Ca23, 1978Ca11, 1982De11: 167Os produced and identified in 107,109Ag,106,108,110Cd,110Pd,112,116Sn, \113In(63Cu,X),E(63Cu)=245-320 MeV reaction at Orsay, followed by the assignment of α lines from the decay of 167Os through cross-bombardments, excitation functions, and α-energy systematics.
1978MaYF: yield measurement of 167Os in 58Ni,63Cu(58Ni,X), E(58Ni)=290 MeV reaction, and measurement of its α decay using the heavy-ion accelerator UNILAC at GSI.
1981Ho10: 167Os identified from the decay of 171Pt parent which was formed in Sn(58Ni,X),E=4.4 MeV/nucleon, followed by separation of fragments using SHIP velocity filter at GSI.
1982En03: identification of 167Os as the α daughter of 171Pt.
No references were found in the NSR database for theoretical structure calculations for 167Os.
Levels: All configurations are from 2009Od02
Q-value: S(2n)=20900 220 (syst), S(2p)=2220 80, Q(εp)=8100 80, Q(ε)=8340 90 (syst) (2021Wa16)
Q-value: Q(α): g.s. α transition assumed, with 60-keV uncertainty added because of lack of information concerning the energy of the daughter state populated in the α decay of 167Os (2021Wa16).