ADOPTED LEVELS, GAMMAS for 166Ta
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 109, 1103 (2008) | Cutoff date: 1-Mar-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-4.21×103 keV 3 | S(n)= 8.32×103 keV 4 | S(p)= 1.75×103 keV 4 | Q(α)= 4.31×103 keV 8 | ||
Reference: 2012WA38 |
References: | |||
A | 166W ε decay | B | 141Pr(28Si,3nγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | A | (2)+ | 34.4 s 5 % ε = 100 | |||||
0.0+X | B | (9-) | ||||||
53.6+X 8 | B | (10-) | 53.6 | 100 | 0.0+X | (9-) | ||
125.79 18 | A | 1+ | 125.8 2 | 100 | M1+E2 | 0.0 | (2)+ | |
147.6+X 8 | B | (11-) | 94.0 147.6 | | 53.6+X 0.0+X | (10-) (9-) | ||
298.3 3 | A | 172.5 3 | 100 | [M1,E2] | 125.79 | 1+ | ||
320.1+X 10 | B | (12-) | 172.5 266.5 | | 147.6+X 53.6+X | (11-) (10-) | ||
350.34 25 | A | 224.6 2 | 100 | [M1,E2] | 125.79 | 1+ | ||
395.93 20 | A | 1+ | 45.8 4 97.6 4 270.1 2 395.9 3 | 26 8 35 4 43 4 100 2 | [M1] [M1,E2] [M1,E2] [M1,E2] | 350.34 298.3 125.79 0.0 | 1+ (2)+ | |
495.0+X 11 | B | (13-) | 174.9 347.4 | | 320.1+X 147.6+X | (12-) (11-) | ||
754.6+X 12 | B | (14-) | 259.6 434.5 | | 495.0+X 320.1+X | (13-) (12-) | ||
992.2+X 13 | B | (15-) | 237.6 497.3 | | 754.6+X 495.0+X | (14-) (13-) | ||
1309.2+X 13 | B | (16-) | 317.0 554.6 | | 992.2+X 754.6+X | (15-) (14-) | ||
1597.8+X 14 | B | (17-) | 288.6 605.6 | | 1309.2+X 992.2+X | (16-) (15-) | ||
1946.3+X 15 | B | (18-) | 348.5 637.1 | | 1597.8+X 1309.2+X | (17-) (16-) | ||
2273.2+X 15 | B | (19-) | 326.9 675.4 | | 1946.3+X 1597.8+X | (18-) (17-) | ||
2626.7+X 16 | B | (20-) | 353.5 680.4 | | 2273.2+X 1946.3+X | (19-) (18-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2972.1+X 17 | B | (21-) | 345.3 698.8 | | 2626.7+X 2273.2+X | (20-) (19-) | ||
3304.9+X 17 | B | (22-) | 332.8 678.2 | | 2972.1+X 2626.7+X | (21-) (20-) | ||
3653.9+X 18 | B | (23-) | 349.0 681.8 | | 3304.9+X 2972.1+X | (22-) (21-) | ||
3972.1+X 19 | B | (24-) | 318.2 667.2 | | 3653.9+X 3304.9+X | (23-) (22-) |
E(level): From least-squares fit to Eγ.
Jπ(level): Values given without comment are from 141Pr(28Si,3nγ). Bandhead J assumes smooth energy variation with Z for levels with assigned configuration in neighboring isotones. J for higher-energy levels is based on observed band structure.
E(γ): From 141Pr(28Si,3nγ), except as noted. Authors did not state uncertainty.
I(γ): Relative photon intensity normalized to 100 at strongest photon deexciting each level. From 166W ε decay.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - (ν i13/2)#(π h11/2), α=0 band. | |||||||
53.6+X 8 | (10-) | ||||||
320.1+X 10 | (12-) | ||||||
754.6+X 12 | (14-) | 259.6 434.5 | | 495.0+X 320.1+X | (13-) (12-) | ||
1309.2+X 13 | (16-) | 317.0 554.6 | | 992.2+X 754.6+X | (15-) (14-) | ||
1946.3+X 15 | (18-) | 348.5 637.1 | | 1597.8+X 1309.2+X | (17-) (16-) | ||
2626.7+X 16 | (20-) | 353.5 680.4 | | 2273.2+X 1946.3+X | (19-) (18-) | ||
3304.9+X 17 | (22-) | 332.8 678.2 | | 2972.1+X 2626.7+X | (21-) (20-) | ||
3972.1+X 19 | (24-) | 318.2 667.2 | | 3653.9+X 3304.9+X | (23-) (22-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
125.79 | 1+ | 125.8 2 | M1+E2 | 0.8 +8-5 | 1.98 | α=1.98 24 | |
298.3 | 172.5 3 | [M1,E2] | 0.71 | α=0.71 22 | |||
350.34 | 224.6 2 | [M1,E2] | 0.32 | α=0.32 13 | |||
395.93 | 1+ | 45.8 4 | [M1] | 7.21 | α=7.21 22 | ||
1+ | 97.6 4 | [M1,E2] | 4.4 | α=4.4 4 | |||
1+ | 270.1 2 | [M1,E2] | 0.19 | α=0.19 8 | |||
1+ | 395.9 3 | [M1,E2] | 0.07 | α=0.07 3 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (2)+ | 34.4 s 5 % ε = 100 | Assignment: 159Tb(16O,9N), E(16O)=147 MeV, excit (1977Le08). E(level): Assignment: 159Tb(16O,9N), E(16O)=147 MeV, excit (1977Le08). |
53.6+X | (10-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
320.1+X | (12-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
754.6+X | (14-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
1309.2+X | (16-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
1946.3+X | (18-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
2626.7+X | (20-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
3304.9+X | (22-) | E(level): (ν i13/2)#(π h11/2), α=0 band. | |
3972.1+X | (24-) | E(level): (ν i13/2)#(π h11/2), α=0 band. |
E(level) | E(gamma) | Comments |
125.79 | 125.8 | E(γ): From 166W ε decay. |
298.3 | 172.5 | E(γ): From 166W ε decay. |
350.34 | 224.6 | E(γ): From 166W ε decay. |
395.93 | 45.8 | E(γ): From 166W ε decay. | 97.6 | E(γ): From 166W ε decay. | 270.1 | E(γ): From 166W ε decay. | 395.9 | E(γ): From 166W ε decay. |
Levels: band(a) (ν i13/2)#(π h11/2), α=1 band. See comment on signature-partner band.
Q-value: Note: Current evaluation has used the following Q record -4206 30 8310 30 1750 40 4310 80 2003Au03