ADOPTED LEVELS, GAMMAS for 161Ta
Author: C. W. Reich | Citation: Nucl. Data Sheets 112,2497 (2011) | Cutoff date: 1-Jun-2011
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-8.15×103 keV SY | S(n)= 1.090×104 keV 8 | S(p)= 59 keV 24 | Q(α)= 5.33×103 keV 3 | ||
Reference: 2012WA38 |
References: | |||
A | 165Re α decay | B | 165Re α decay (2.32 S) |
C | 106Cd(58Ni,3PG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0S | A | (1/2+) | % ε = ? % α = ? | |||||
X | BC | (11/2-) | 3.08 s 11 % ε = ? % α = ? | |||||
396.0+X 5 | C | (13/2-) | 396.1 5 | 100 | M1+E2 | X | (11/2-) | |
482.8+X 5 | C | (15/2-) | 86.9 20 482.7 5 | 1.0 1 100.0 3 | M1+E2 E2 | 396.0+X X | (13/2-) (11/2-) | |
956.2+X 5 | C | (17/2-) | 473.3 5 560.4 5 | 100 5 83 4 | M1+E2 E2 | 482.8+X 396.0+X | (15/2-) (13/2-) | |
1083.2+X 6 | C | (19/2-) | 127.5 20 600.4 5 | 2.2 13 100 5 | M1+E2 E2 | 956.2+X 482.8+X | (17/2-) (15/2-) | |
1583.4+X 6 | C | (21/2-) | 500.4 5 627.1 5 | 81.5 4 100 5 | M1+E2 | 1083.2+X 956.2+X | (19/2-) (17/2-) | |
1677.4+X 11 | C | 1194.6 10 | 100 | 482.8+X | (15/2-) | |||
1763.6+X 7 | C | (23/2-) | 180.0 10 680.2 5 | 8 4 100 4 | M1+E2 E2 | 1583.4+X 1083.2+X | (21/2-) (19/2-) | |
1794.5+X 9 | C | (19/2+) | 838.3 10 | 100 | E1 | 956.2+X | (17/2-) | |
1994.8+X 11 | C | (21/2+) | 911.5 10 | 100 | E1 | 1083.2+X | (19/2-) | |
2073.2+X 7 | C | (21/2+) | 278.7 20 990.0 5 | 12 2 100 4 | M1+E2 E1 | 1794.5+X 1083.2+X | (19/2+) (19/2-) | |
2176.4+X 7 | C | (25/2-) | 412.4 5 593.0 5 | 60 3 100 5 | M1+E2 E2 | 1763.6+X 1583.4+X | (23/2-) (21/2-) | |
2243.6+X 7 | C | (23/2+) | 170.7 20 449.2 10 660.4 5 | 8.4 9 61 4 100 6 | M1+E2 E2 | 2073.2+X 1794.5+X 1583.4+X | (21/2+) (19/2+) (21/2-) | |
2321.2+X 21 | C | 1238.0 20 | 100 | 1083.2+X | (19/2-) | |||
2467.7+X 8 | C | (27/2-) | 291.1 10 704.1 5 | 24.8 16 100 5 | E2 | 2176.4+X 1763.6+X | (25/2-) (23/2-) | |
2494.5+X 11 | C | (25/2+) | 251.7 10 422.0 20 499.7 20 | 100 9 74 9 57 13 | M1+E2 | 2243.6+X 2073.2+X 1994.8+X | (23/2+) (21/2+) (21/2+) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2528.3+X 9 | C | (25/2+) | 285.4 20 454.7 20 764.4 10 | 21.0 12 23.5 25 100 7 | M1+E2 E2 E1 | 2243.6+X 2073.2+X 1763.6+X | (23/2+) (21/2+) (23/2-) | |
2537.6+X 9 | C | (25/2+) | 44S 293.7 10 773.9 10 | 74 3 100 6 | M1+E2 | 2494.5+X 2243.6+X 1763.6+X | (25/2+) (23/2+) (23/2-) | |
2652.1+X 11 | C | (27/2+) | 114.9 10 | 100 | M1+E2 | 2537.6+X | (25/2+) | |
2741.8+X 8 | C | (27/2+) | 213.4 10 498.7 10 565.4 5 | 41 2 62 3 100 5 | M1+E2 E2 E1 | 2528.3+X 2243.6+X 2176.4+X | (25/2+) (23/2+) (25/2-) | |
2760.3+X 10 | C | (29/2-) | 293.0 10 583.6 10 | 32 2 100 6 | M1+E2 E2 | 2467.7+X 2176.4+X | (27/2-) (25/2-) | |
2817.4+X 10 | C | (29/2+) | 75.8 20 165.6 10 288.8 20 349.2 10 | 42 4 100 4 79 4 83 4 | E2 E2 E1 | 2741.8+X 2652.1+X 2528.3+X 2467.7+X | (27/2+) (27/2+) (25/2+) (27/2-) | |
2891.9+X 14 | C | (29/2+) | 240.0 10 | 100 | 2652.1+X | (27/2+) | ||
3016.7+X 11 | C | (31/2+) | 125.6 20 199.3 5 | 1.6 8 100 4 | M1+E2 | 2891.9+X 2817.4+X | (29/2+) (29/2+) | |
3089.8+X 11 | C | (31/2-) | 329.6 10 622.0 10 | 44 4 100 7 | M1+E2 | 2760.3+X 2467.7+X | (29/2-) (27/2-) | |
3169+X 4 | C | (29/2-) | ||||||
3261.2+X 13 | C | (31/2-) | 793.5 10 | 100 | 2467.7+X | (27/2-) | ||
3343.8+X 11 | C | (33/2+) | 327.1 5 526.3 10 | 100 5 33.6 25 | M1+E2 | 3016.7+X 2817.4+X | (31/2+) (29/2+) | |
3443.5+X 12 | C | (33/2-) | 354.2 20 683.0 10 | 18.2 15 100 6 | E2 | 3089.8+X 2760.3+X | (31/2-) (29/2-) | |
3447+X 3 | C | (31/2-) | 278.7 20 | 100 | 3169+X | (29/2-) | ||
3467.2+X 24 | C | 575.3 20 | 100 | 2891.9+X | (29/2+) | |||
3573.7+X 12 | C | (35/2+) | 229.9 10 557.0 5 | 84 4 100 5 | M1+E2 | 3343.8+X 3016.7+X | (33/2+) (31/2+) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3689.2+X 22 | C | (33/2-) | 241.8 20 | 100 | 3447+X | (31/2-) | ||
3762.2+X 13 | C | (35/2-) | 318.4 20 672.5 10 | 100 100 | 3443.5+X 3089.8+X | (33/2-) (31/2-) | ||
3872+X 3 ? | C | 405.3 20 | 100 | 3467.2+X | ||||
3941.7+X 12 | C | (37/2+) | 368.0 5 598.0 10 | 100 4 46 3 | M1+E2 | 3573.7+X 3343.8+X | (35/2+) (33/2+) | |
4023.5+X 16 | C | (35/2-) | 334.5 20 761.9 10 | 63 4 100 7 | E2 | 3689.2+X 3261.2+X | (33/2-) (31/2-) | |
4058.8+X 16 | C | (35/2-) | 798.0 10 | 100 | 3261.2+X | (31/2-) | ||
4098+X 3 ? | C | 227.1 20 631.2 10 | 27 5 100 9 | 3872+X 3467.2+X | ||||
4202.7+X 13 | C | (39/2+) | 261.4 10 629.0 5 | 44 3 100 5 | M1+E2 | 3941.7+X 3573.7+X | (37/2+) (35/2+) | |
4218.1+X 14 | C | (37/2-) | 455.8 20 774.6 10 | 13 4 100 5 | E2 | 3762.2+X 3443.5+X | (35/2-) (33/2-) | |
4313.9+X 19 | C | (37/2-) | 256.7 20 289.6 20 624.6 20 | 31 5 100 5 84 11 | M1+E2 | 4058.8+X 4023.5+X 3689.2+X | (35/2-) (35/2-) (33/2-) | |
4445+X 3 ? | C | 346.4 20 572.8 20 | 100 8 75 16 | 4098+X 3872+X | ||||
4496.6+X 15 | C | (39/2-) | 278.6 10 734.4 10 | 77 4 100 8 | 4218.1+X 3762.2+X | (37/2-) (35/2-) | ||
4544.3+X 14 | C | (41/2+) | 341.9 10 602.3 10 | 100 5 90 5 | M1+E2 | 4202.7+X 3941.7+X | (39/2+) (37/2+) | |
4673.6+X 19 | C | (39/2-) | 359.8 10 649.4 20 | 100 7 53 7 | M1+E2 | 4313.9+X 4023.5+X | (37/2-) (35/2-) | |
4770+X 4 ? | C | 671.5 20 | 100 | 4098+X | ||||
4864.4+X 15 | C | (43/2+) | 320.1 10 661.6 10 | 100 4 58 5 | M1+E2 | 4544.3+X 4202.7+X | (41/2+) (39/2+) | |
4980.7+X 20 | C | (41/2-) | 307.2 10 666.7 10 | 100 8 92 8 | M1+E2 | 4673.6+X 4313.9+X | (39/2-) (37/2-) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5061+X 4 ? | C | 616.0 20 | 100 | 4445+X | ||||
5070.9+X 25 | C | (41/2-) | 852.8 20 | 100 | 4218.1+X | (37/2-) | ||
5088.5+X 25 | C | 870.4 20 | 100 | 4218.1+X | (37/2-) | |||
5289.6+X 25 | C | (43/2-) | 793 2 | | 4496.6+X | (39/2-) | ||
5328.4+X 21 | C | (43/2-) | 347.7 10 654.7 20 | 100 7 21 7 | M1+E2 | 4980.7+X 4673.6+X | (41/2-) (39/2-) | |
5653.9+X 25 | C | (45/2-) | 325.5 20 673.2 20 | 89 11 100 11 | M1+E2 | 5328.4+X 4980.7+X | (43/2-) (41/2-) | |
6024+X 3 | C | (47/2-) | 370.3 10 | 100 | 5653.9+X | (45/2-) | ||
6093+X 4 | C | (47/2-) | 803.2 20 | 100 | 5289.6+X | (43/2-) | ||
6382+X 3 | C | (49/2-) | 358.2 10 728.0 20 | 100 9 86 18 | 6024+X 5653.9+X | (47/2-) (45/2-) | ||
6764+X 3 | C | (51/2-) | 382.1 20 739.0 20 | 100 8 83 17 | 6382+X 6024+X | (49/2-) (47/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - πh11/2 band, α=-1/2 branch. | |||||||
482.8+X 5 | (15/2-) | ||||||
1083.2+X 6 | (19/2-) | ||||||
1763.6+X 7 | (23/2-) | 180.0 10 680.2 5 | 8 4 100 4 | M1+E2 E2 | 1583.4+X 1083.2+X | (21/2-) (19/2-) | |
2467.7+X 8 | (27/2-) | 291.1 10 704.1 5 | 24.8 16 100 5 | E2 | 2176.4+X 1763.6+X | (25/2-) (23/2-) | |
3089.8+X 11 | (31/2-) | 329.6 10 622.0 10 | 44 4 100 7 | M1+E2 | 2760.3+X 2467.7+X | (29/2-) (27/2-) | |
3762.2+X 13 | (35/2-) | 318.4 20 672.5 10 | 100 100 | 3443.5+X 3089.8+X | (33/2-) (31/2-) | ||
4496.6+X 15 | (39/2-) | 278.6 10 734.4 10 | 77 4 100 8 | 4218.1+X 3762.2+X | (37/2-) (35/2-) | ||
5289.6+X 25 | (43/2-) | 793 2 | | 4496.6+X | (39/2-) | ||
6093+X 4 | (47/2-) | 803.2 20 | 100 | 5289.6+X | (43/2-) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Band based on (29/2-), α=+1/2. | |||||||
3169+X 4 | (29/2-) | ||||||
3689.2+X 22 | (33/2-) | ||||||
4313.9+X 19 | (37/2-) | 256.7 20 289.6 20 624.6 20 | 31 5 100 5 84 11 | M1+E2 | 4058.8+X 4023.5+X 3689.2+X | (35/2-) (35/2-) (33/2-) | |
4980.7+X 20 | (41/2-) | 307.2 10 666.7 10 | 100 8 92 8 | M1+E2 | 4673.6+X 4313.9+X | (39/2-) (37/2-) | |
5653.9+X 25 | (45/2-) | 325.5 20 673.2 20 | 89 11 100 11 | M1+E2 | 5328.4+X 4980.7+X | (43/2-) (41/2-) | |
6382+X 3 | (49/2-) | 358.2 10 728.0 20 | 100 9 86 18 | 6024+X 5653.9+X | (47/2-) (45/2-) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Band based on (19/2+). | |||||||
1794.5+X 9 | (19/2+) | ||||||
2073.2+X 7 | (21/2+) | ||||||
2243.6+X 7 | (23/2+) | 170.7 20 449.2 10 660.4 5 | 8.4 9 61 4 100 6 | M1+E2 E2 | 2073.2+X 1794.5+X 1583.4+X | (21/2+) (19/2+) (21/2-) | |
2528.3+X 9 | (25/2+) | 285.4 20 454.7 20 764.4 10 | 21.0 12 23.5 25 100 7 | M1+E2 E2 E1 | 2243.6+X 2073.2+X 1763.6+X | (23/2+) (21/2+) (23/2-) | |
2741.8+X 8 | (27/2+) | 213.4 10 498.7 10 565.4 5 | 41 2 62 3 100 5 | M1+E2 E2 E1 | 2528.3+X 2243.6+X 2176.4+X | (25/2+) (23/2+) (25/2-) | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - Band based on (25/2+), α=+1/2 branch. | |||||||
2537.6+X 9 | (25/2+) | ||||||
2817.4+X 10 | (29/2+) | ||||||
3343.8+X 11 | (33/2+) | 327.1 5 526.3 10 | 100 5 33.6 25 | M1+E2 | 3016.7+X 2817.4+X | (31/2+) (29/2+) | |
3941.7+X 12 | (37/2+) | 368.0 5 598.0 10 | 100 4 46 3 | M1+E2 | 3573.7+X 3343.8+X | (35/2+) (33/2+) | |
4544.3+X 14 | (41/2+) | 341.9 10 602.3 10 | 100 5 90 5 | M1+E2 | 4202.7+X 3941.7+X | (39/2+) (37/2+) | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - Tentative band based on (29/2+), α=+1/2 branch. | |||||||
2891.9+X 14 | (29/2+) | ||||||
3467.2+X 24 | |||||||
3872+X 3 | 405.3 20 | 100 | 3467.2+X | ||||
4098+X 3 | 227.1 20 631.2 10 | 27 5 100 9 | 3872+X 3467.2+X | ||||
4770+X 4 | 671.5 20 | 100 | 4098+X |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | (1/2+) | % ε = ? % α = ? | The previously reported (2005Sc22) α branch from the 165Re g.s. has not been confirmed in a subsequent study (d. O’Donnell et al., (to be published); d.t. Joss, R.d. Page and d. O’Donnell, (private communication, June, 2011)) by some of the same authors as 2005Sc22. The evaluator assumes that the existence of an α branch from the 165Re g.s. leading to this state is presently an open question. E(level): The previously reported (2005Sc22) α branch from the 165Re g.s. has not been confirmed in a subsequent study (d. O’Donnell et al., (to be published); d.t. Joss, R.d. Page and d. O’Donnell, (private communication, June, 2011)) by some of the same authors as 2005Sc22. The evaluator assumes that the existence of an α branch from the 165Re g.s. leading to this state is presently an open question. |
X | (11/2-) | 3.08 s 11 % ε = ? % α = ? | From the study of O’Donnell et al. (see above), the 5148 3 α transition is to be associated with the decay of this level rather than from the decay of the (1/2+) state, as previously proposed. E(level): From the study of O’Donnell et al. (see above), the 5148 3 α transition is to be associated with the decay of this level rather than from the decay of the (1/2+) state, as previously proposed. |
482.8+X | (15/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
1083.2+X | (19/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
1763.6+X | (23/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
1794.5+X | (19/2+) | E(level): Band based on (19/2+). | |
2073.2+X | (21/2+) | E(level): Band based on (19/2+). | |
2243.6+X | (23/2+) | E(level): Band based on (19/2+). | |
2467.7+X | (27/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
2528.3+X | (25/2+) | E(level): Band based on (19/2+). | |
2537.6+X | (25/2+) | E(level): Band based on (25/2+), α=+1/2 branch. | |
2741.8+X | (27/2+) | E(level): Band based on (19/2+). | |
2817.4+X | (29/2+) | E(level): Band based on (25/2+), α=+1/2 branch. | |
2891.9+X | (29/2+) | E(level): Tentative band based on (29/2+), α=+1/2 branch. | |
3089.8+X | (31/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
3169+X | (29/2-) | E(level): Band based on (29/2-), α=+1/2. | |
3343.8+X | (33/2+) | E(level): Band based on (25/2+), α=+1/2 branch. | |
3467.2+X | E(level): Tentative band based on (29/2+), α=+1/2 branch. | ||
3689.2+X | (33/2-) | E(level): Band based on (29/2-), α=+1/2. | |
3762.2+X | (35/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
3872+X | E(level): Tentative band based on (29/2+), α=+1/2 branch. | ||
3941.7+X | (37/2+) | E(level): Band based on (25/2+), α=+1/2 branch. | |
4098+X | E(level): Tentative band based on (29/2+), α=+1/2 branch. | ||
4313.9+X | (37/2-) | E(level): Band based on (29/2-), α=+1/2. | |
4496.6+X | (39/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
4544.3+X | (41/2+) | E(level): Band based on (25/2+), α=+1/2 branch. | |
4770+X | E(level): Tentative band based on (29/2+), α=+1/2 branch. | ||
4980.7+X | (41/2-) | E(level): Band based on (29/2-), α=+1/2. | |
5289.6+X | (43/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
5653.9+X | (45/2-) | E(level): Band based on (29/2-), α=+1/2. | |
6093+X | (47/2-) | E(level): πh11/2 band, α=-1/2 branch. | |
6382+X | (49/2-) | E(level): Band based on (29/2-), α=+1/2. |
α recent study (d. O’Donnell et al., (to be published); d.t. Joss, R.d. Page and d. O’Donnell (private communication, June, 2011)) has led to new insights regarding the (1/2+) and (11/2-) states in 161Ta. In particular, they indicate that the decay data previously reported for the (1/2+) state in 161Ta are to be associated with the (11/2-) state instead. At present, then, there are no decay data known for this (1/2+) state.
All data on the excited states above the (11/2-) level are from the 106Cd(58Ni,3pγ) study of 2011La01. See that source data set for additional details. From considerations of the systematics of the yrast bands in the heavier odd-A Ta isotopes, 2011La01 propose that there is a 9/2- level below the (11/2-) level. This level has not yet been directly observed.
Levels: For the labeling of the quasiparticle orbitals used here, see the 106Cd(58Ni,3pγ) source data set.
Levels: band(a) πh11/2 band, α=+1/2 branch. See the comment on the α=-1/2 branch. Conf is fEF or fAB.
Levels: band(b) Band based on (29/2-), α=-1/2. Possible conf is fAB |) fABEF.
Levels: band(d) Band based on (25/2+), α=-1/2 branch. Possible conf is fAF.
Levels: band(e) Tentative band based on (29/2+), α=-1/2 branch. Possible conf is fAE.
Q-value: Note: Current evaluation has used the following Q record $ -8339 syst 10941 syst 94 syst 5305 56 2009AuZZ
Q-value: The uncertainties assigned to these estimated values by 2009AuZZ are as follows: for Q(β-), 203; for S(n), 104; and, for S(p), 53.
Q-value: 2003Au03 report the following values (all from systematics): Q(β-)=8330 200; S(n)=10930 110; S(p)=90 50; and Q(α)=5320 60.