ADOPTED LEVELS, GAMMAS for 169Ir
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 109, 2033 (2008) | Cutoff date: 15-Jun-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-9.57×103 keV SY | S(n)= 1.143×104 keV 8 | S(p)= -620 keV 23 | Q(α)= 6141 keV 4 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 173Au α decay (25 MS) | B | 173Au α decay (14.0 MS) |
| C | 112Sn(60Ni,p2nγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A C | (1/2+) | 0.353 s 4 % p = ? % α = 45 12 % ε = ? | |||||
| 153 24 | BC | (11/2-) | 0.281 s 4 % p = ? % α = 72 7 % ε = ? | |||||
| 610.15 18 | C | (13/2-) | 457.1 2 | 100 | (M1) | 153 | (11/2-) | |
| 811.20 21 | C | (15/2-) | 201.7 3 658.3 3 | 31.5 8 100.0 13 | (M1) (E2) | 610.15 153 | (13/2-) (11/2-) | |
| 1243.2 3 | C | (15/2-) | 633.1 2 | 100 | 610.15 | (13/2-) | ||
| 1330.98 23 | C | (17/2-) | 519.3 4 720.3 2 | 100.0 21 63.5 19 | (M1) (E2) | 811.20 610.15 | (15/2-) (13/2-) | |
| 1547.0 3 | C | (17/2-) | 937.3 3 | 100 | 610.15 | (13/2-) | ||
| 1572.75 24 | C | (19/2-) | 242.5 4 762.4 4 | <58 100.0 21 | (E2) | 1330.98 811.20 | (17/2-) (15/2-) | |
| 1724.64 23 | C | (19/2-) | 152.3 1 178.0 3 393.3 1 | 58.0 17 29.5 12 100.0 22 | D | 1572.75 1547.0 1330.98 | (19/2-) (17/2-) (17/2-) | |
| 1803.1 4 | C | (17/2-) | 559.9 2 | 100 | 1243.2 | (15/2-) | ||
| 1803.45 25 | C | (19/2-) | 256.6 4 992.5 2 | 100 3 35.4 21 | 1547.0 811.20 | (17/2-) (15/2-) | ||
| 1997.8 3 | C | (21/2-) | 273.9 3 | 100 | 1724.64 | (19/2-) | ||
| 2045.0 4 | C | (21/2-) | 242.5 4 | 100 | 1803.45 | (19/2-) | ||
| 2115.69 25 | C | (21/2-) | 542.8 1 785.3 2 | 100 10 83 6 | (E2) | 1572.75 1330.98 | (19/2-) (17/2-) | |
| 2221.4 4 | C | (23/2-) | 223.6 2 | 100 | 1997.8 | (21/2-) | ||
| 2261.23 25 | C | (21/2-) | 263.8 2 688.4 1 | 24.7 26 100 3 | 1997.8 1572.75 | (21/2-) (19/2-) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2263.84 25 | C | (23/2-) | 539.2 1 | 100 | 1724.64 | (19/2-) | ||
| 2318.4 3 | C | (23/2-) | 273.9 3 317.6 4 515.1 3 745.4 2 | <260 100 3 24 9 51 3 | 2045.0 1997.8 1803.45 1572.75 | (21/2-) (21/2-) (19/2-) (19/2-) | ||
| 2406.3 4 | C | (23/2-) | 290.6 3 833.5 4 | <18 100 5 | 2115.69 1572.75 | (21/2-) (19/2-) | ||
| 2448.9 3 | C | (25/2-) | 130.5 1 | 100 | 2318.4 | (23/2-) | ||
| 2467.7 3 | C | (23/2-) | 206.5 1 | 100 | 2261.23 | (21/2-) | ||
| 2574.4 4 | C | (25/2-) | 310.6 2 | 100 | 2263.84 | (23/2-) | ||
| 2608.4 4 | C | (27/2-) | 159.5 2 | 100 | 2448.9 | (25/2-) | ||
| 2851.4 4 | C | (25/2-) | 383.7 2 | 100 | 2467.7 | (23/2-) | ||
| 2861.3 7 | C | (29/2-) | 252.9 6 | 100 | 2608.4 | (27/2-) | ||
| 3117.9 8 | C | (31/2-) | 256.6 4 | 100 | 2861.3 | (29/2-) | ||
| 3441.5 9 | C | (33/2-) | 323.6 2 | 100 | 3117.9 | (31/2-) | ||
E(level): From least-squares fit to Eγ, excluding the 317.6γ which fits its placement very poorly. Energies are given assuming E=153 for the h11/2 isomeric state and do not include the 24 keV uncertainty in that energy.
Jπ(level): Based on band structure deduced in (60Ni,92nγ), transition multipolarities and similarity of level scheme to that for 171Ir, except as noted.
M(γ): From 112Sn(60Ni,p2nγ) based on measured (Iγ(158|’)/((Iγ(86|’)+Iγ(94|’)) and assigning Δπ=(no) to intraband transitions.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - π 11/2[505], α=+1/2 band. | |||||||
| 610.15 18 | (13/2-) | ||||||
| 1330.98 23 | (17/2-) | ||||||
| 2115.69 25 | (21/2-) | 542.8 1 785.3 2 | 100 10 83 6 | (E2) | 1572.75 1330.98 | (19/2-) (17/2-) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - π=(-) SIDEBAND 1. | |||||||
| 1547.0 3 | (17/2-) | ||||||
| 1724.64 23 | (19/2-) | ||||||
| 1997.8 3 | (21/2-) | 273.9 3 | 100 | 1724.64 | (19/2-) | ||
| 2221.4 4 | (23/2-) | 223.6 2 | 100 | 1997.8 | (21/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 3 - π=(-) SIDEBAND 2. | |||||||
| 2318.4 3 | (23/2-) | ||||||
| 2448.9 3 | (25/2-) | ||||||
| 2608.4 4 | (27/2-) | 159.5 2 | 100 | 2448.9 | (25/2-) | ||
| 2861.3 7 | (29/2-) | 252.9 6 | 100 | 2608.4 | (27/2-) | ||
| 3117.9 8 | (31/2-) | 256.6 4 | 100 | 2861.3 | (29/2-) | ||
| 3441.5 9 | (33/2-) | 323.6 2 | 100 | 3117.9 | (31/2-) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 610.15 | (13/2-) | 457.1 2 | (M1) | 0.0910 | α=0.0910 | |
| 811.20 | (15/2-) | 201.7 3 | (M1) | 0.838 | α=0.838 | |
| (15/2-) | 658.3 3 | (E2) | 0.01250 | α=0.01250 | ||
| 1330.98 | (17/2-) | 519.3 4 | (M1) | 0.0651 | α=0.0651 | |
| (17/2-) | 720.3 2 | (E2) | 0.01026 | α=0.01026 | ||
| 1572.75 | (19/2-) | 762.4 4 | (E2) | 0.00909 | α=0.00909 | |
| 2115.69 | (21/2-) | 785.3 2 | (E2) | 0.00854 | α=0.00854 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (1/2+) | 0.353 s 4 % p = ? % α = 45 12 % ε = ? | %p: see 1983Al09 and 1984Gr14 for discussions of expected proton decay; S(p) (=-621 24 (2003Au03)) consistent with predictions. E(level): %p: see 1983Al09 and 1984Gr14 for discussions of expected proton decay; S(p) (=-621 24 (2003Au03)) consistent with predictions. |
| 610.15 | (13/2-) | E(level): π 11/2[505], α=+1/2 band. | |
| 1330.98 | (17/2-) | E(level): π 11/2[505], α=+1/2 band. | |
| 1547.0 | (17/2-) | E(level): π=(-) SIDEBAND 1. | |
| 1724.64 | (19/2-) | E(level): π=(-) SIDEBAND 1. | |
| 1997.8 | (21/2-) | E(level): π=(-) SIDEBAND 1. | |
| 2115.69 | (21/2-) | E(level): π 11/2[505], α=+1/2 band. | |
| 2221.4 | (23/2-) | E(level): π=(-) SIDEBAND 1. | |
| 2318.4 | (23/2-) | E(level): π=(-) SIDEBAND 2. | |
| 2448.9 | (25/2-) | E(level): π=(-) SIDEBAND 2. | |
| 2608.4 | (27/2-) | E(level): π=(-) SIDEBAND 2. | |
| 2861.3 | (29/2-) | E(level): π=(-) SIDEBAND 2. | |
| 3117.9 | (31/2-) | E(level): π=(-) SIDEBAND 2. | |
| 3441.5 | (33/2-) | E(level): π=(-) SIDEBAND 2. |
| E(level) | E(gamma) | Comments |
| 1572.75 | 242.5 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 1803.45 | 256.6 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 1997.8 | 273.9 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2045.0 | 242.5 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 2318.4 | 273.9 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity | 317.6 | E(γ): fits placement very poorly; Eγ is >5σ from expected value. Level energy difference is 320.7 3. |
| 3117.9 | 256.6 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
Identification: excitation functions for 63Cu bombardments of cadmium, silver, and palladium (1978Ca11); excitation functions for krypton bombardments of niobium and yttrium (1978Sc26).
Levels: band(a) π 11/2[505], α=-1/2 band. See comment on signature partner band.
Q-value: Note: Current evaluation has used the following Q record -9710 syst 11410 syst -621 24 6140 5 2003Au03,2005Sc22
Q-value: ΔQ(β)=200, ΔS(n)=150 (2003Au03).
Q-value: Q(α): from Eα=5995 5, the weighted average of Eα=5993 4 (2005Sc22) and Eα=6005 8 (1999Po09), assuming a g.s. to g.s. transition. Q(α)=6151 8 in 2003Au03 based on the datum from 1999Po09 alone.