ADOPTED LEVELS, GAMMAS for 185Ta
Author: S. -c. Wu | Citation: Nucl. Data Sheets 106, 619 (2005) | Cutoff date: 1-Nov-2005
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1994 keV 15 | S(n)= 6.63×103 keV 3 | S(p)= 7.18×103 keV 5 | Q(α)= 9.8×102 keV 16 | ||
Reference: 2012WA38 |
References: | |||
A | 186W(pol t,α) | B | 185Hf β- decay |
C | 186W(238U,239NPG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABC | (7/2+) | 49.4 m 15 % β- = 100 | |||||
164.5 5 | AB | (9/2+) | 164.5 5 | 100 | 0.0 | (7/2+) | ||
175.0 10 | A C | (9/2-) | ≤ 5 ns | 175 | 100 | (E1) | 0.0 | (7/2+) |
337.4 13 | A C | (11/2-) | 162 | 100 | (M1+E2) | 175.0 | (9/2-) | |
409 4 | A | (1/2+) AND (3/2+) | ||||||
528.6 13 | A C | (13/2-) | 191 354 | 100 11 10 | (M1+E2) (E2) | 337.4 175.0 | (11/2-) (9/2-) | |
590 4 | A | (5/2+) AND (7/2+) | ||||||
689 4 | A | |||||||
746.5 14 | A C | (15/2-) | 218 409 | 100 33 17 | (M1+E2) (E2) | 528.6 337.4 | (13/2-) (11/2-) | |
811 4 | A | (3/2+) | ||||||
890 4 | A | (7/2-) | ||||||
980 4 | A | (9/2-) | ||||||
992.6 15 | C | (17/2-) | 246 464 | 100 72 23 | (M1+E2) (E2) | 746.5 528.6 | (15/2-) (13/2-) | |
1018 4 | A | |||||||
1074 4 | A | |||||||
1153 4 | A | (11/2-) | ||||||
1223 4 | A | |||||||
1258.5 16 | C | (19/2-) | 266 512 | 100 60 17 | (M1+E2) (E2) | 992.6 746.5 | (17/2-) (15/2-) | |
1258.5+X | C | (21/2) | > 1 ms | |||||
1378 4 | A | |||||||
1409 4 | A | |||||||
1475 4 | A | (5/2+) | ||||||
1583 4 | A | |||||||
1638 4 | A | |||||||
1744 4 | A | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1837 4 | A |
E(level): From least-square fit to Eγ’s
Jπ(level): Except as noted, Jπ and Nilsson orbital assignments are based on measured angular distributions, on analyzing powers, and on the comparison of calculated cross sections with experimental values in 186W(pol t,α).
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - 7/2(404) ROTATIONAL band. | |||||||
0.0 | (7/2+) | 49.4 m 15 % β- = 100 | |||||
164.5 5 | (9/2+) | 164.5 5 | 100 | 0.0 | (7/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - 9/2(514) ROTATIONAL band. | |||||||
175.0 10 | (9/2-) | ≤ 5 ns | |||||
337.4 13 | (11/2-) | 162 | 100 | (M1+E2) | 175.0 | (9/2-) | |
528.6 13 | (13/2-) | 191 354 | 100 11 10 | (M1+E2) (E2) | 337.4 175.0 | (11/2-) (9/2-) | |
746.5 14 | (15/2-) | 218 409 | 100 33 17 | (M1+E2) (E2) | 528.6 337.4 | (13/2-) (11/2-) | |
992.6 15 | (17/2-) | ||||||
1258.5 16 | (19/2-) | 266 512 | 100 60 17 | (M1+E2) (E2) | 992.6 746.5 | (17/2-) (15/2-) | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - 1/2(411) ROTATIONAL band. | |||||||
409 4 | (1/2+) AND (3/2+) | ||||||
590 4 | (5/2+) AND (7/2+) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - 7/2(523) ROTATIONAL band. | |||||||
890 4 | (7/2-) | ||||||
980 4 | (9/2-) | ||||||
1153 4 | (11/2-) | ||||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - 3/2(411) ROTATIONAL band. | |||||||
1475 4 | (5/2+) |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (7/2+) | 49.4 m 15 % β- = 100 | E(level): 7/2(404) ROTATIONAL band. |
164.5 | (9/2+) | E(level): 7/2(404) ROTATIONAL band. | |
175.0 | (9/2-) | ≤ 5 ns | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. |
337.4 | (11/2-) | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. | |
409 | (1/2+) AND (3/2+) | Doublet. 1/2+,1/2[411] and 3/2+,1/2[411]. E(level): Doublet. 1/2+,1/2[411] and 3/2+,1/2[411]. 1/2(411) ROTATIONAL band. | |
528.6 | (13/2-) | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. | |
590 | (5/2+) AND (7/2+) | Doublet. 5/2+,1/2[411] and 7/2+,1/2[411]. E(level): Doublet. 5/2+,1/2[411] and 7/2+,1/2[411]. 1/2(411) ROTATIONAL band. | |
746.5 | (15/2-) | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. | |
811 | (3/2+) | Possibly 3/2+,3/2[402] state or K-2 γ vibration based on g.s., or combination of both. | |
890 | (7/2-) | E(level): 7/2(523) ROTATIONAL band. | |
980 | (9/2-) | E(level): 7/2(523) ROTATIONAL band. | |
992.6 | (17/2-) | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. | |
1153 | (11/2-) | E(level): 7/2(523) ROTATIONAL band. | |
1258.5 | (19/2-) | E(level): 9/2(514) ROTATIONAL band. Jπ(level): Spin and parity assignments of levels populated in 186W(238U,239Npγ) are based on rotational band structure and on the (M1+E2) and stretched (E2) multipolarities of intra-band γ-ray transitions. | |
1258.5+X | (21/2) | > 1 ms | Probable high-K isomer with configuration= π(5/2[402]7/2[404]9/2[514]) for 21/2-. |
1475 | (5/2+) | E(level): 3/2(411) ROTATIONAL band. |
E(level) | E(gamma) | Comments |
175.0 | 175 | M(γ): (E1) from α(exp)=0.12 18 (1999Wh03) deduced from intensity balance. E2 assignment, however, is not ruled out. |