ADOPTED LEVELS, GAMMAS for 84Nb
Authors: D. Abriola and M. Galan | Citation: Nucl. Data Sheets 110,2815 (2009) | Cutoff date: 30-Sep-2009
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-6.5×103 keV SY | S(n)= 1.07×104 keV SY | S(p)= 2.4×103 keV SY | Q(α)= -2.3×103 keV SY | ||
Reference: 2012WA38 |
References: | |||
A | 84Nb IT decay | B | 84Mo ε decay |
C | 28Si(58Ni,NPG) | D | 58Ni(28Si,pnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB D | (1+,2+,3+) | 9.8 s 9 % ε = 100 % εp = ? | |||||
48.0 5 | A D | (3-,4-) | 47.4 | 100 | (E1) | 0.0 | (1+,2+,3+) | |
65.0 5 | A D | (2+,3+) | 65.0 5 | 100 | (M1) | 0.0 | (1+,2+,3+) | |
162.5 4 | A D | (4+,5+) | 114.5 5 163? | 100 15 12 3 | (E1) | 48.0 0.0 | (3-,4-) (1+,2+,3+) | |
205.0 4 | A D | (3-) | 140.0 205.0 5 | 100 16 86 18 | (E1) (E1) | 65.0 0.0 | (2+,3+) (1+,2+,3+) | |
217.5 4 | D | 217.5 5 | | 0.0 | (1+,2+,3+) | |||
306.0 4 | D | 100.7 5 143.3 5 257.9 5 | 100 21 | 205.0 162.5 48.0 | (3-) (4+,5+) (3-,4-) | |||
337.7 4 | A CD | (5-) | 103 ns 19 % IT = 100 | 132.6 5 175.2 5 | 100 12 61 9 | (E2) (E1) | 205.0 162.5 | (3-) (4+,5+) |
358.3 5 | D | 140.7 5 196.0 5 | | 217.5 162.5 | (4+,5+) | |||
501.7 6 | D | 143.6 5 | | 358.3 | ||||
565.7 5 | CD | (6-) | 228.0 3 259.8 4 | 100 8 14 4 | (M1,E2) | 337.7 306.0 | (5-) | |
570.2 5 | CD | (7+) | 232.4 4 | 100 | 337.7 | (5-) | ||
574.0 4 | D | 266.8 5 369.6 5 411.8 5 | | 306.0 205.0 162.5 | (3-) (4+,5+) | |||
673.7 6 | D | 103.6 5 172.1 5 | | 570.2 501.7 | (7+) | |||
770.7 5 | D | 196.4 5 205.0 5 465.0 5 | | 574.0 565.7 306.0 | (6-) | |||
809.1 7 | D | 238.8 5 | | 570.2 | (7+) | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
865.2 6 | CD | (8+) | 191.8 4 294.9 3 | 7.1 24 100 8 | (E2) | 673.7 570.2 | (7+) | |
923.9 5 | CD | (7-) | 358.2 3 586.0 4 | 66 12 100 12 | (M1,E2) (E2) | 565.7 337.7 | (6-) (5-) | |
1201.7 6 | CD | (9+) | 336.4 3 392.5 5 | 100 <10 | (D,E2) | 865.2 809.1 | (8+) | |
1205.6 7 | D | 631.6 5 | | 574.0 | ||||
1267.1 5 | CD | (8-) | 343.2 5 496.3 5 701.5 4 | <10 <10 100 7 | (E2) | 923.9 770.7 565.7 | (7-) (6-) | |
1281.0 8 | D | 471.8 5 | | 809.1 | ||||
1293.8 8 | D | 484.7 5 | | 809.1 | ||||
1535.1 7 | D | 764.4 5 | | 770.7 | ||||
1590.5 8 | D | 296.6 5 309.5 5 781.7 9 | | 1293.8 1281.0 809.1 | ||||
1707.4 6 | CD | (10+) | 505.8 5 842.2 4 | 100 14 | (E2) | 1201.7 865.2 | (9+) (8+) | |
1765.5 6 | CD | (9-) | 498.3 5 841.6 4 | 100 19 | (E2) | 1267.1 923.9 | (8-) (7-) | |
1991.2 7 | CD | (11+) | 283.9 3 789.5 4 | 39 3 100 8 | (M1,E2) (E2) | 1707.4 1201.7 | (10+) (9+) | |
2049.4 8 | D | 843.8 5 | | 1205.6 | ||||
2099.6 8 | D | 509.1 5 818.6 5 | | 1590.5 1281.0 | ||||
2120.9 6 | CD | (10-) | 853.8 4 | 100 | (E2) | 1267.1 | (8-) | |
2527.8 9 | D | 992.7 5 | | 1535.1 | ||||
2628.9 9 | D | 1038.4 5 | | 1590.5 | ||||
2774.5 8 | CD | (12+) | 1067.0 5 | 100 | (E2) | 1707.4 | (10+) | |
2783.0 8 | D | (11-) | 1017.5 5 | | 1765.5 | (9-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2986.5 8 | CD | (13+) | 212.0 5 995.3 5 | 100 16 | (E2) | 2774.5 1991.2 | (12+) (11+) | |
3055.8 10 | D | 1006.4 5 | | 2049.4 | ||||
3113.5 8 | CD | (12-) | 992.6 5 | 100 | (E2) | 2120.9 | (10-) | |
3122.6 10 | D | 1023.0 5 | | 2099.6 | ||||
3851.7 9 | D | (13-) | 1068.7 5 | | 2783.0 | (11-) | ||
3963.5 8 | D | 1972.2 5 | | 1991.2 | (11+) | |||
4041.9 10 | CD | (14+) | 1267.4 7 | 100 | (E2) | 2774.5 | (12+) | |
4084.9 9 | CD | (14-) | 971.4 4 | 100 | (E2) | 3113.5 | (12-) | |
4086.1 11 | D | 1099 1 | | 2986.5 | (13+) | |||
4151.2 9 | CD | (15+) | 1164.8 4 | 100 | (E2) | 2986.5 | (13+) | |
4748.6 10 | CD | (15-) | 896.9 5 | | 3851.7 | (13-) | ||
5073.0 10 | D | (16-) | 988.0 5 | | 4084.9 | (14-) | ||
5376.9 11 | D | (16+) | 1335.0 5 | | 4041.9 | (14+) | ||
5470.0 10 | CD | (17+) | 1318.8 5 | 100 | (E2) | 4151.2 | (15+) | |
5822.4 11 | D | (17-) | 1073.8 5 | | 4748.6 | (15-) | ||
5879.7 11 | D | 1729 1 1793.4 5 | | 4151.2 4086.1 | (15+) | |||
6239.6 12 | D | (18-) | 1166.6 5 | | 5073.0 | (16-) | ||
6760.5 13 | D | (18+) | 1383.6 6 | | 5376.9 | (16+) | ||
6903.1 11 | CD | (19+) | 1433.1 5 | 100 | (E2) | 5470.0 | (17+) | |
6993.3 15 | D | (19-) | 1170.9 | | 5822.4 | (17-) | ||
7218.0 14 | D | 1748 1 | | 5470.0 | (17+) | |||
7579.6 13 | D | (20-) | 1340.0 5 | | 6239.6 | (18-) | ||
8394.7 12 | D | (21+) | 1491.5 5 | | 6903.1 | (19+) | ||
8596.2 15 | D | 1693 1 | | 6903.1 | (19+) | |||
9093.0 13 | D | (22-) | 1513.4 4 | | 7579.6 | (20-) |
E(level): From least-squares fit to Eγ
Jπ(level): From γ-ray multipolarities and band structure (1991Gr16,1999Ma23), except when noted.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Band based on (9+),α=1 | |||||||
1201.7 6 | (9+) | ||||||
1991.2 7 | (11+) | 283.9 3 789.5 4 | 39 3 100 8 | (M1,E2) (E2) | 1707.4 1201.7 | (10+) (9+) | |
2986.5 8 | (13+) | 212.0 5 995.3 5 | 100 16 | (E2) | 2774.5 1991.2 | (12+) (11+) | |
4151.2 9 | (15+) | 1164.8 4 | 100 | (E2) | 2986.5 | (13+) | |
5470.0 10 | (17+) | 1318.8 5 | 100 | (E2) | 4151.2 | (15+) | |
6903.1 11 | (19+) | 1433.1 5 | 100 | (E2) | 5470.0 | (17+) | |
8394.7 12 | (21+) | 1491.5 5 | | 6903.1 | (19+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Band based on (8+),α=0 | |||||||
865.2 6 | (8+) | ||||||
1707.4 6 | (10+) | 505.8 5 842.2 4 | 100 14 | (E2) | 1201.7 865.2 | (9+) (8+) | |
2774.5 8 | (12+) | 1067.0 5 | 100 | (E2) | 1707.4 | (10+) | |
4041.9 10 | (14+) | 1267.4 7 | 100 | (E2) | 2774.5 | (12+) | |
5376.9 11 | (16+) | 1335.0 5 | | 4041.9 | (14+) | ||
6760.5 13 | (18+) | 1383.6 6 | | 5376.9 | (16+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - Band based on (5-),α=1 | |||||||
337.7 4 | (5-) | 103 ns 19 % IT = 100 | |||||
923.9 5 | (7-) | 358.2 3 586.0 4 | 66 12 100 12 | (M1,E2) (E2) | 565.7 337.7 | (6-) (5-) | |
1765.5 6 | (9-) | 498.3 5 841.6 4 | 100 19 | (E2) | 1267.1 923.9 | (8-) (7-) | |
2783.0 8 | (11-) | 1017.5 5 | | 1765.5 | (9-) | ||
3851.7 9 | (13-) | 1068.7 5 | | 2783.0 | (11-) | ||
4748.6 10 | (15-) | 896.9 5 | | 3851.7 | (13-) | ||
5822.4 11 | (17-) | 1073.8 5 | | 4748.6 | (15-) | ||
6993.3 15 | (19-) | 1170.9 | | 5822.4 | (17-) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 4 - Band based on (6-),α=0 | |||||||
565.7 5 | (6-) | ||||||
1267.1 5 | (8-) | 343.2 5 496.3 5 701.5 4 | <10 <10 100 7 | (E2) | 923.9 770.7 565.7 | (7-) (6-) | |
2120.9 6 | (10-) | 853.8 4 | 100 | (E2) | 1267.1 | (8-) | |
3113.5 8 | (12-) | 992.6 5 | 100 | (E2) | 2120.9 | (10-) | |
4084.9 9 | (14-) | 971.4 4 | 100 | (E2) | 3113.5 | (12-) | |
5073.0 10 | (16-) | 988.0 5 | | 4084.9 | (14-) | ||
6239.6 12 | (18-) | 1166.6 5 | | 5073.0 | (16-) | ||
7579.6 13 | (20-) | 1340.0 5 | | 6239.6 | (18-) | ||
9093.0 13 | (22-) | 1513.4 4 | | 7579.6 | (20-) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 5 - γ cascade-1 | |||||||
574.0 4 | |||||||
1205.6 7 | 631.6 5 | | 574.0 | ||||
2049.4 8 | 843.8 5 | | 1205.6 | ||||
3055.8 10 | 1006.4 5 | | 2049.4 | ||||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 6 - γ cascade-2 | |||||||
809.1 7 | |||||||
1281.0 8 | 471.8 5 | | 809.1 | ||||
2099.6 8 | 509.1 5 818.6 5 | | 1590.5 1281.0 | ||||
3122.6 10 | 1023.0 5 | | 2099.6 |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
48.0 | (3-,4-) | 47.4 | (E1) | 1.031 | α=1.031 | |
65.0 | (2+,3+) | 65.0 5 | (M1) | 0.76 | α=0.76 | |
162.5 | (4+,5+) | 114.5 5 | (E1) | 0.0803 | α=0.0803 | |
205.0 | (3-) | 140.0 | (E1) | 0.0436 | α=0.0436 | |
(3-) | 205.0 5 | (E1) | 0.0148 | α=0.0148 | ||
337.7 | (5-) | 103 ns 19 % IT = 100 | 132.6 5 | (E2) | 0.408 | B(E2)(W.u.)=3.0 8, α=0.408 |
(5-) | 103 ns 19 % IT = 100 | 175.2 5 | (E1) | 0.023 | B(E1)(W.u.)=1.9E-7 5, α=0.023 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (1+,2+,3+) | 9.8 s 9 % ε = 100 % εp = ? | Jπ(level): Assignment based on weak arguments from tentative multipolarity assignments of γ rays from the 103-ns isomer assigned as (5-). It is assumed that spins of four intermediate levels do not increase as the isomer decays to g.s. |
48.0 | (3-,4-) | Jπ(level): Assignment based on weak arguments from tentative multipolarity assignments of γ rays from the 103-ns isomer assigned as (5-). It is assumed that spins of four intermediate levels do not increase as the isomer decays to g.s. | |
65.0 | (2+,3+) | Jπ(level): Assignment based on weak arguments from tentative multipolarity assignments of γ rays from the 103-ns isomer assigned as (5-). It is assumed that spins of four intermediate levels do not increase as the isomer decays to g.s. | |
162.5 | (4+,5+) | Jπ(level): Assignment based on weak arguments from tentative multipolarity assignments of γ rays from the 103-ns isomer assigned as (5-). It is assumed that spins of four intermediate levels do not increase as the isomer decays to g.s. | |
205.0 | (3-) | Jπ(level): Assignment based on weak arguments from tentative multipolarity assignments of γ rays from the 103-ns isomer assigned as (5-). It is assumed that spins of four intermediate levels do not increase as the isomer decays to g.s. | |
337.7 | (5-) | 103 ns 19 % IT = 100 | E(level): Band based on (5-),α=1. |
565.7 | (6-) | E(level): Band based on (6-),α=0. | |
574.0 | E(level): γ cascade-1. | ||
809.1 | E(level): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ). γ cascade-2. | ||
865.2 | (8+) | E(level): Band based on (8+),α=0. | |
923.9 | (7-) | E(level): Band based on (5-),α=1. | |
1201.7 | (9+) | E(level): Band based on (9+),α=1. | |
1205.6 | E(level): γ cascade-1. | ||
1267.1 | (8-) | E(level): Band based on (6-),α=0. | |
1281.0 | E(level): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ). γ cascade-2. | ||
1707.4 | (10+) | E(level): Band based on (8+),α=0. | |
1765.5 | (9-) | E(level): Band based on (5-),α=1. | |
1991.2 | (11+) | E(level): Band based on (9+),α=1. | |
2049.4 | E(level): γ cascade-1. | ||
2099.6 | E(level): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ). γ cascade-2. | ||
2120.9 | (10-) | E(level): Band based on (6-),α=0. | |
2774.5 | (12+) | E(level): Band based on (8+),α=0. | |
2783.0 | (11-) | E(level): Band based on (5-),α=1. | |
2986.5 | (13+) | E(level): Band based on (9+),α=1. | |
3055.8 | E(level): γ cascade-1. | ||
E(level) | Jπ(level) | T1/2(level) | Comments |
3113.5 | (12-) | E(level): Band based on (6-),α=0. | |
3122.6 | E(level): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ). γ cascade-2. | ||
3851.7 | (13-) | E(level): Band based on (5-),α=1. | |
4041.9 | (14+) | E(level): Band based on (8+),α=0. | |
4084.9 | (14-) | E(level): Band based on (6-),α=0. | |
4151.2 | (15+) | E(level): Band based on (9+),α=1. | |
4748.6 | (15-) | E(level): Band based on (5-),α=1. | |
5073.0 | (16-) | E(level): Band based on (6-),α=0. | |
5376.9 | (16+) | E(level): Band based on (8+),α=0. | |
5470.0 | (17+) | E(level): Band based on (9+),α=1. | |
5822.4 | (17-) | E(level): Band based on (5-),α=1. | |
6239.6 | (18-) | E(level): Band based on (6-),α=0. | |
6760.5 | (18+) | E(level): Band based on (8+),α=0. | |
6903.1 | (19+) | E(level): Band based on (9+),α=1. | |
6993.3 | (19-) | E(level): Band based on (5-),α=1. | |
7579.6 | (20-) | E(level): Band based on (6-),α=0. | |
8394.7 | (21+) | E(level): Band based on (9+),α=1. | |
9093.0 | (22-) | E(level): Band based on (6-),α=0. |
E(level) | E(gamma) | Comments |
48.0 | 47.4 | M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments |
65.0 | 65.0 | M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments |
162.5 | 114.5 | M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments | 163 | E(γ): tentatively proposed by 2000Ch07, Iγ estimated by the evaluators |
205.0 | 140.0 | I(γ): From 84Nb IT decay M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments | 205.0 | I(γ): From 84Nb IT decay M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments |
337.7 | 132.6 | I(γ): From 84Nb IT decay M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments | 175.2 | I(γ): From 84Nb IT decay M(γ): Tentative assignments proposed in 2000Ch07 based on γ-ray intensity-balance arguments |
565.7 | 228.0 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) | 259.8 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
570.2 | 232.4 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
865.2 | 191.8 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) | 294.9 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
923.9 | 358.2 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) | 586.0 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
1201.7 | 336.4 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) | 392.5 | I(γ): Estimated by evaluators from spectral Figure 2 in 1991Gr16. γ proposed in 58Ni(28Si,pnγ) reaction (1999Ma23) |
1267.1 | 343.2 | I(γ): Estimated by evaluators from spectral Figure 2 in 1991Gr16. γ proposed in 58Ni(28Si,pnγ) reaction (1999Ma23) | 496.3 | I(γ): Estimated by evaluators from spectral Figure 2 in 1991Gr16. γ proposed in 58Ni(28Si,pnγ) reaction (1999Ma23) | 701.5 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
1590.5 | 781.7 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
1707.4 | 842.2 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
1765.5 | 841.6 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
1991.2 | 283.9 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) | 789.5 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
E(level) | E(gamma) | Comments |
2120.9 | 853.8 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
3113.5 | 992.6 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
4041.9 | 1267.4 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
4084.9 | 971.4 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
4151.2 | 1164.8 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
5470.0 | 1318.8 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
6760.5 | 1383.6 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
6903.1 | 1433.1 | E(γ): Weighted average of values in 28Si(58Ni,npγ) and 58Ni(28Si,pnγ) |
84Nb nuclide evaluated by d. Abriola and M. Galan
Q-value: Note: Current evaluation has used the following Q record -6720 syst 10880 syst 2600 syst-2500 syst 2009AuZZ
Q-value: ΔQ(β-)=500, ΔS(n)=420, ΔS(p)=ΔQ(α)=300 (2009AuZZ).
Q-value: Q(εp)=3700 300 (syst,2009AuZZ).
Q-value: The values in 2003Au03 are: Q(β-)=-6070 500, S(n)=10990 430, S(p)=2710 310, Q(α)=-3090 350, Q(εp)=3160 300; all from systematics