ADOPTED LEVELS, GAMMAS for 149Dy
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 185, 2 (2022) | Cutoff date: 23-Aug-2022
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-6048 keV 13 | S(n)= 7906 keV 12 | S(p)= 4446 keV 15 | Q(α)= 2808 keV 22 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 149Ho ε decay (21.0 S) | B | 149Ho ε decay (56 S) |
| C | 149Dy IT decay (0.490 S) | D | 153Er α decay (37.1 S) |
| E | 120Sn(32S,3nγ) | F | 122Sn(32S,5nγ) |
| G | 136Ce(16O,3nγ) | H | 141Pr(16O,P7NG) |
| I | 152Gd(α,7NG) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDEFGHI | 7/2- | 4.2 m 2 % ε = 100 | |||||
| 1034.60 20 | B | (3/2-) | 1034.6 2 | 100 | 0.0 | 7/2- | ||
| 1073.23 9 | A C EFGHI | (13/2)+ | 12.5 ns 15 | 1073.2 1 | 100 | E3 | 0.0 | 7/2- |
| 1090.73 12 | A | (9/2-) | 1090.4 3 | 100 | 0.0 | 7/2- | ||
| 1406.70 28 | B | (1/2+) | 372.1 2 | 100 | E1 | 1034.60 | (3/2-) | |
| 1501.0 4 | B | (3/2+) | 94.3 3 | 100 | M1(+E2) | 1406.70 | (1/2+) | |
| 1572.80 35 | B | (3/2+) | 166.1 2 | 100 | M1(+E2) | 1406.70 | (1/2+) | |
| 1583.64 14 | A F H | (11/2-) | 511 2 1583.7 2 | 12 4 100 2 | 1073.23 0.0 | (13/2)+ 7/2- | ||
| 1626.3 5 | B | (5/2+) | 591.7 5 | 100 | (E1) | 1034.60 | (3/2-) | |
| 1663.45 16 | A | (9/2+) | 590.1 5 1663.4 2 | 13 4 100 2 | 1073.23 0.0 | (13/2)+ 7/2- | ||
| 1703.71 20 | A | (11/2)+ | 613.0 2 630.3 5 | 18 4 100 15 | M1(+E2) | 1090.73 1073.23 | (9/2-) (13/2)+ | |
| 1712.79 18 | A | (9/2-) | 1712.9 2 | 100 | 0.0 | 7/2- | ||
| 1727.5 6 | B | (1/2) | 692.9 6 | 100 | 1034.60 | (3/2-) | ||
| 1775.6 5 | B | (1/2) | 741.0 5 | 100 | 1034.60 | (3/2-) | ||
| 1782.21 30 ? | A | (7/2+) | 1782.2 3 ? | 100 | 0.0 | 7/2- | ||
| 2165.82 28 | A | (9/2,11/2,13/2)+ | 462.1 3 1092.6 4 | 100 26 87 44 | M1(+E2) | 1703.71 1073.23 | (11/2)+ (13/2)+ | |
| 2251.84 13 | C EFGHI | (17/2)+ | 1178.6 1 | 100 | E2 | 1073.23 | (13/2)+ | |
| 2291.74 22 | A | (11/2-,13/2-) | 1218.5 2 | 100 | 1073.23 | (13/2)+ | ||
| 2312.22 30 | A | (9/2-,11/2-) | 2312.2 3 | 100 | 0.0 | 7/2- | ||
| 2321.19 24 | A | (9/2-,11/2-) | 1230.4 4 2321.2 3 | 27 11 100 11 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 2358.0 6 | A | (9/2-,11/2-) | 694.5 6 | 100 | 1663.45 | (9/2+) | ||
| 2402.44 31 | A | (11/2-,13/2-) | 1329.2 3 | 100 | 1073.23 | (13/2)+ | ||
| 2409.18 22 | A | (9/2-,11/2-) | 1318.5 3 2409.1 3 | 100 4 30 6 | 1090.73 0.0 | (9/2-) 7/2- | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2466.23 29 | A | (9/2-,11/2-) | 1375.2 3 2467.4 6 ? | 100 6 15 6 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 2487.23 19 | A | (9/2-,11/2-) | 1396.5 2 2487.2 3 | 70 8 100 7 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 2550.44 17 | C EFGHI | (21/2)+ | 298.6 1 | 100 | E2 | 2251.84 | (17/2)+ | |
| 2607.08 26 | A | (11/2-) | 1534.0 5 2607.0 3 | 28 10 100 10 | 1073.23 0.0 | (13/2)+ 7/2- | ||
| 2660.94 34 | C EFGHI | (27/2)- | 0.490 s 15 % IT = 99.3 3 % ε = 0.7 3 | 110.5 3 | 100 | E3 | 2550.44 | (21/2)+ |
| 2718.5 4 ? | A | (9/2-,11/2-) | 2718.5 4 ? | 100 | 0.0 | 7/2- | ||
| 2728.64 32 | A | (9/2-,11/2-,13/2-) | 1637.9 3 | 100 | 1090.73 | (9/2-) | ||
| 2771.0 6 | B | (1/2+,3/2+) | 1736.4 6 | 100 | 1034.60 | (3/2-) | ||
| 2788.6 5 | B | (1/2+,3/2+) | 1754.0 5 | 100 | 1034.60 | (3/2-) | ||
| 2789.17 22 | A | (9/2-,11/2-) | 1125.7 2 1698.5 4 | 100 5 75 7 | 1663.45 1090.73 | (9/2+) (9/2-) | ||
| 2827.32 19 | A | (11/2-) | 1114.8 3 1736.6 5 1753.4 4 2827.4 3 | 8.4 13 100 21 16 4 58 2 | 1712.79 1090.73 1073.23 0.0 | (9/2-) (9/2-) (13/2)+ 7/2- | ||
| 2882.79 23 | A | (11/2-,13/2-) | 1791.9 3 1809.7 3 | 58 6 100 14 | 1090.73 1073.23 | (9/2-) (13/2)+ | ||
| 2938.1 6 | B | (1/2+,3/2+) | 1531.4 5 | 100 | 1406.70 | (1/2+) | ||
| 2980.40 25 | A | (9/2-,11/2-) | 1889.7 3 2980.3 4 | 75 13 100 18 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 3014.2 4 ? | A | (9/2-,11/2-) | 3014.2 4 ? | 100 | 0.0 | 7/2- | ||
| 3049.5 4 | A | (9/2-,11/2-,13/2-) | 1958.8 4 | 100 | 1090.73 | (9/2-) | ||
| 3079.14 14 | A | (11/2-) | 1415.6 3 1495.5 2 1988.4 2 2006.0 5 3079.1 3 | 27 3 84 2 100 4 12 5 32 3 | 1663.45 1583.64 1090.73 1073.23 0.0 | (9/2+) (11/2-) (9/2-) (13/2)+ 7/2- | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 3129.54 20 | A | (11/2-) | 1545.9 2 2056.2 5 3129.5 4 | 100 8 21 12 28 6 | 1583.64 1073.23 0.0 | (11/2-) (13/2)+ 7/2- | ||
| 3180.04 23 | A | (9/2-,11/2-,13/2-) | 2089.3 2 | 100 | 1090.73 | (9/2-) | ||
| 3202.54 29 | A | (9/2-,11/2-) | 2111.8 3 3202.5 6 | 100 19 58 23 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 3312.55 30 | A | (9/2-,11/2-,13/2-) | 1729.0 3 2221.4 6 | 100 10 98 39 | 1583.64 1090.73 | (11/2-) (9/2-) | ||
| 3348.65 32 | A | (9/2-,11/2-,13/2-) | 2257.9 3 | 100 | 1090.73 | (9/2-) | ||
| 3362.8 4 | A | (9/2-,11/2-) | 3362.8 4 | 100 | 0.0 | 7/2- | ||
| 3490.41 25 | A | (9/2-,11/2-) | 2399.7 3 3490.3 4 | 100 18 79 15 | 1090.73 0.0 | (9/2-) 7/2- | ||
| 3645.1 4 | EFGHI | (29/2)+ | 984.2 2 | 100 | E1 | 2660.94 | (27/2)- | |
| 3885.1 5 | EFGHI | (31/2+) | 240.0 3 | | (M1) | 3645.1 | (29/2)+ | |
| 4084.4 6 | EFGHI | (33/2+) | 199.5 3 | 100 | (M1) | 3885.1 | (31/2+) | |
| 5222.3 6 | EFGHI | (35/2+) | 1138.2 1336.9 3 | 33 5 100 7 | (Q) | 4084.4 3885.1 | (33/2+) (31/2+) | |
| 5477.5 6 | EFGHI | (37/2+) | 255.2 2 1393.2 3 | 51 5 100 7 | (M1) E2 | 5222.3 4084.4 | (35/2+) (33/2+) | |
| 5747.5 6 | EFGHI | (39/2+) | 270.0 2 525.4 | 100 7 28.9 22 | (M1) | 5477.5 5222.3 | (37/2+) (35/2+) | |
| 5929.2 7 ? | G I | 451.7 | 100 | 5477.5 | (37/2+) | |||
| 6177.6 6 | EFGHI | (41/2+) | 248.4? 430.3 2 699.8 3 | 100 7 23 5 | (M1) | 5929.2 5747.5 5477.5 | (39/2+) (37/2+) | |
| 6328.3 8 | F H | 580.8 | 100 | 5747.5 | (39/2+) | |||
| 6677.8 7 | F H | 930.5 | 100 | 5747.5 | (39/2+) | |||
| 6891.1 7 | F H | 213.0 1143.5 | | 6677.8 5747.5 | (39/2+) | |||
| 6918.7 7 | EFGHI | (41/2+) | 741.1 3 | 100 | 6177.6 | (41/2+) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 7156.5 7 | F H | (41/2+) | 479.2 1408.9 | 100 25 18 5 | 6677.8 5747.5 | (39/2+) | ||
| 7241.4 7 | FGHI | 350.0 1064.1 | 32 7 100 17 | 6891.1 6177.6 | (41/2+) | |||
| 7409.6 6 | EFGHI | (43/2+) | 168.1 253.3 491.1 1231.8 3 | 10.3 9 15 3 100 6 55 6 | (D,E2) | 7241.4 7156.5 6918.7 6177.6 | (41/2+) (41/2+) (41/2+) | |
| 8044.6 11 ? | H | 635? | | 7409.6 | (43/2+) | |||
| 8270.6 11 ? | H | 861? | | 7409.6 | (43/2+) | |||
| 8519.6 12 | EF HI | (49/2+) | 28 ns 2 | 249? 475? | | 8270.6 8044.6 | ||
| 9115.0 13 | F H | (51/2) | 595.4 | 100 | 8519.6 | (49/2+) | ||
| 9409.3 14 | F H | (53/2) | 294.2 | 100 | 9115.0 | (51/2) | ||
| 9782.4 14 | F H | (53/2) | 667.5 | 100 | 9115.0 | (51/2) | ||
| 10238.7 14 | F H | (55/2) | 456.5 829.3 | 100 13 63 13 | 9782.4 9409.3 | (53/2) (53/2) | ||
| 11200.8 15 | H | 962.1 | | 10238.7 | (55/2) | |||
| 11905.0 15 | F H | 704.2 | 100 | 11200.8 | ||||
| 11951.2 15 | F H | (57/2) | 750.4 | 100 | 11200.8 | |||
| 12209.4 15 | F H | 1008.6 | 100 | 11200.8 | ||||
| 12555.3 15 | F H | (57/2) | 1354.3 | | 11200.8 | |||
| 12753.1 15 | F H | (59/2) | 197.7 543.7 802.0 848.2 | 70 8 80 20 100 20 | 12555.3 12209.4 11951.2 11905.0 | (57/2) (57/2) | ||
| 12812.4 16 | F H | 603.1 861.0 | | 12209.4 11951.2 | (57/2) | |||
| 13088.2 16 | F H | (61/2) | 335.1 | 100 | 12753.1 | (59/2) | ||
| 13115.3 16 | F H | 303.1 | 100 | 12812.4 | ||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 13727.8 17 | H | 613 915 | | 13115.3 12812.4 | ||||
| 13949.3 17 | H | 834 1137 | | 13115.3 12812.4 | ||||
E(level): From a least-squares fit to γ-ray energies, assuming ΔEγ=0.3 keV for Eγ values quoted to tenth of a keV and 1 keV otherwise where not given. Absolute energies of levels above 7410.5 remain uncertain due to tentative connections of the 28Ns isomer with the low-lying levels
Jπ(level): From shell-Model predictions and systematics (1994Me13) for levels with J|<13/2, unless otherwise noted.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
| 1073.23 | (13/2)+ | 12.5 ns 15 | 1073.2 1 | E3 | 0.00557 | B(E3)(W.u.)=45 +6-5, α=0.00557 8 | |
| 1406.70 | (1/2+) | 372.1 2 | E1 | 0.01017 | α=0.01017 14 | ||
| 1501.0 | (3/2+) | 94.3 3 | M1(+E2) | 0.7 LT | 2.92 | α=2.92 10 | |
| 1572.80 | (3/2+) | 166.1 2 | M1(+E2) | 1.5 LT | 0.52 | α=0.52 4 | |
| 1626.3 | (5/2+) | 591.7 5 | (E1) | 0.00356 | α=0.00356 5 | ||
| 1703.71 | (11/2)+ | 630.3 5 | M1(+E2) | 2.5 LT | 0.0131 | α=0.0131 35 | |
| 2165.82 | (9/2,11/2,13/2)+ | 462.1 3 | M1(+E2) | 1.0 LT | 0.032 | α=0.032 4 | |
| 2251.84 | (17/2)+ | 1178.6 1 | E2 | 2.18×10-3 | α=2.18×10-3 3 | ||
| 2550.44 | (21/2)+ | 298.6 1 | E2 | 0.0654 | α=0.0654 9 | ||
| 2660.94 | (27/2)- | 0.490 s 15 % IT = 99.3 3 % ε = 0.7 3 | 110.5 3 | E3 | 27.6 | B(E3)(W.u.)=0.325 14, α=27.6 6 | |
| 3645.1 | (29/2)+ | 984.2 2 | E1 | 1.29×10-3 | α=1.29×10-3 2 | ||
| 3885.1 | (31/2+) | 240.0 3 | (M1) | 0.2060 | α=0.2060 30 | ||
| 4084.4 | (33/2+) | 199.5 3 | (M1) | 0.342 | α=0.342 5 | ||
| 5477.5 | (37/2+) | 255.2 2 | (M1) | 0.1744 | α=0.1744 25 | ||
| (37/2+) | 1393.2 3 | E2 | 1.61×10-3 | α=1.61×10-3 2 | |||
| 5747.5 | (39/2+) | 270.0 2 | (M1) | 0.1498 | α=0.1498 21 | ||
| 6177.6 | (41/2+) | 430.3 2 | (M1) | 0.0437 | α=0.0437 6 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 7/2- | 4.2 m 2 % ε = 100 | μ=-0.119 7 (1989Ra17,2019StZV), Q=-0.62 5 (1989Ra17,2021StZZ) Evaluated difference in charge radius: δ<r2>(148Dy,149Dy)=+0.119 fm2 13 (2013An02). |
| 2251.84 | (17/2)+ | Configuration=πh11/2~#πs1/2~#νf7/2 (1983JuZY) or configuration=νf7/2~#(5- in 148Dy) (1980Da18). | |
| 2291.74 | (11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2312.22 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2321.19 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2358.0 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2402.44 | (11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2409.18 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2466.23 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2487.23 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2550.44 | (21/2)+ | Configuration=πh11/2~#πd3/2~#νf7/2 (1983JuZY) or configuration=νf7/2~#(7- in 148Dy) (1980Da18). | |
| 2607.08 | (11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2660.94 | (27/2)- | 0.490 s 15 % IT = 99.3 3 % ε = 0.7 3 | For fully-ionized atom, %ε=0 (2003Li42). |
| 2718.5 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2728.64 | (9/2-,11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2789.17 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2882.79 | (11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 2980.40 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3014.2 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3049.5 | (9/2-,11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3129.54 | (11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3180.04 | (9/2-,11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3202.54 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3312.55 | (9/2-,11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3348.65 | (9/2-,11/2-,13/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 3362.8 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3490.41 | (9/2-,11/2-) | Jπ(level): Probable member of configuration=πh11/22~#νh9/2 multiplet (1994Me13). Possible β feeding from (11/2-) parent suggests (9/2,11/2,13/2). | |
| 3645.1 | (29/2)+ | Configuration=πh11/22~#νf7/2~#(3- in 148Dy) (1983JuZY,1980Da18). | |
| 5222.3 | (35/2+) | E(level): Member of configuration=πh11/23~#πd5/2-1~#νf7/2 by 1983JuZY in (α,7nγ) and (16O,3nγ). The d5/2 proton orbital could be g7/2 also (1983JuZY). | |
| 5477.5 | (37/2+) | E(level): Member of configuration=πh11/23~#πd5/2-1~#νf7/2 by 1983JuZY in (α,7nγ) and (16O,3nγ). The d5/2 proton orbital could be g7/2 also (1983JuZY). | |
| 5747.5 | (39/2+) | E(level): Member of configuration=πh11/23~#πd5/2-1~#νf7/2 by 1983JuZY in (α,7nγ) and (16O,3nγ). The d5/2 proton orbital could be g7/2 also (1983JuZY). | |
| 6177.6 | (41/2+) | E(level): Member of configuration=πh11/23~#πd5/2-1~#νf7/2 by 1983JuZY in (α,7nγ) and (16O,3nγ). The d5/2 proton orbital could be g7/2 also (1983JuZY). | |
| 8519.6 | (49/2+) | 28 ns 2 | μ=+10.0 15 (2003Wa28,2020StZV) Configuration=π(h11/2)2 # ν(f7/2,h9/2,i13/2,d3/2-2(0)) gives calculated g=0.46 (2002Go06). |
| 9115.0 | (51/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 9409.3 | (53/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 9782.4 | (53/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 10238.7 | (55/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 11951.2 | (57/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 12555.3 | (57/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 12753.1 | (59/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. | |
| 13088.2 | (61/2) | Jπ(level): Tentative assignments based on γγ(θ)(DCO) data in 122Sn(32S,5nγ) (1996Gu17); spins proposed by 1996Gu17 have been adjusted upwards by two units due to revised Jπ for the 28Ns isomer. |
| E(level) | E(gamma) | Comments |
| 1073.23 | 1073.2 | E(γ): weighted average of 1073.1 2 from 149Ho ε decay (21.1 s), 1073.2 1 from 149Dy IT decay (0.490 s), 1073.2 3 from (32S,3nγ), and 1073.2 2 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 1406.70 | 372.1 | M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 1501.0 | 94.3 | M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 1572.80 | 166.1 | M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 1626.3 | 591.7 | M(γ): From ce data in 149Ho ε decay (1994Me13) |
| 1703.71 | 630.3 | M(γ): From ce data in 149Ho ε decay (1994Me13) |
| 2165.82 | 462.1 | M(γ): From ce data in 149Ho ε decay (1994Me13) |
| 2251.84 | 1178.6 | E(γ): from (α,7nγ). Other: 1178.6 3 from (32S,3nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 2550.44 | 298.6 | E(γ): from (α,7nγ). M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 2660.94 | 110.5 | E(γ): weighted average of 110.4 3 from (32S,3nγ) and 110.8 4 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 3645.1 | 984.2 | E(γ): weighted average of 984.0 3 from (32S,3nγ) and 984.3 2 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18). Also supported by γ(θ) in (α,7nγ) and γγ(θ)(DCO) in (32S,5nγ), with ΔJ=1 for dipole or ΔJ=2 for quadrupole where applicable |
| 3885.1 | 240.0 | E(γ): from (α,7nγ) and (32S,3nγ). M(γ): also supported by γ(θ) in (α,7nγ) and γγ(θ)(DCO) in (32S,5nγ) with ΔJ=1. From ce data in (16O,3nγ) (1980Da18) |
| 4084.4 | 199.5 | E(γ): weighted average of 199.6 3 from (32S,3nγ) and 199.4 3 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18). Also supported by γ(θ) in (α,7nγ) and γγ(θ)(DCO) in (32S,5nγ), with ΔJ=1 for dipole or ΔJ=2 for quadrupole where applicable |
| 5222.3 | 1336.9 | E(γ): weighted average of 1336.8 3 from (32S,3nγ) and 1337.2 4 from (α,7nγ) M(γ): from γ(θ) in (α,7nγ), with ΔJ=(2) |
| 5477.5 | 255.2 | E(γ): weighted average of 255.7 3 from (32S,3nγ) and 255.0 2 from (α,7nγ) I(γ): others: 107 30 from (16O,3nγ), ≈33 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) | 1393.2 | E(γ): weighted average of 1393.0 3 from (32S,3nγ) and 1393.7 5 from (α,7nγ) I(γ): others: 100 10 from (16O,3nγ), 100 22 from (α,7nγ) |
| 5747.5 | 270.0 | E(γ): weighted average of 270.1 3 from (32S,3nγ) and 270.0 2 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) |
| 5929.2 | 451.7 | E(γ): from (α,7nγ) |
| 6177.6 | 248.4 | E(γ): from (α,7nγ) | 430.3 | E(γ): weighted average of 430.2 3 from (32S,3nγ) and 430.3 2 from (α,7nγ) M(γ): From ce data in (16O,3nγ) (1980Da18) | 699.8 | E(γ): from (32S,3nγ). |
| 6891.1 | 1143.5 | E(γ): placement from 2002Go06 in (16O,p7nγ); a 1143.6γ placed to feed the 13116 level by 1996Gu17 in (32S,5nγ) |
| 6918.7 | 741.1 | E(γ): from (32S,3nγ). |
| 7409.6 | 1231.8 | E(γ): from (32S,3nγ). M(γ): from α(exp) in (α,7nγ) (1983JuZY) |
Other measurements:
Mass measurement (Penning-trap method): 2000Be42 (also 2001Bo59, 1997Be63).
Half-life of fully-ionized atom in its isomeric state at 2661 keV has been measured by separating the nuclei produced in fragmentation of 209Bi projectile and storing these nuclides in the cooler ring (ESR) at GSI. Measured T1/2=11 s 1 as compared to 0.490 s 15 for the neutral atom (2003Li42). In the same experiment decay of the bare atom in its g.s. was detected but half-life could not be measured
Theoretical studies: consult the NSR database at www.nndc.bnl.gov/nsr/ for 14 references for structure and one for radioactive decay listed under ’document records’ which can be accessed through web retrieval of the ENSDF database at www.nndc.bnl.gov/ensdf/
High-spin part of the level scheme is based on results from 1996Gu17 in 122Sn(32S,5nγ) and 2002Go06 in 141Pr(16O,p7nγ)
Configuration assignments to low-spin levels from 1994Me13 in 149Ho ε decay
Levels: Possible SD structure exists in 149Dy, as deduced by 2000Ap01 from a weak continuum, with a total SD intensity of 1.8% 5, in a ridge in the γγ-coin matrix in 120Sn(34S,5nγ) reaction. However, no discrete SD band structure has yet been found in this experiment; with an upper limit of population of 0.9% relative to the intensity of the relevant reaction channel.
Q-value: Q(ε)=3795 9, Q(εp)=1286 9, S(2n)=19641 13, S(2p)=6915 9 (2021Wa16)