ADOPTED LEVELS, GAMMAS for 89Tc
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-Nov-2021
Author: Balraj Singh | Citation: Nucl. Data Sheets 114, 1 (2013) | Cutoff date: 20-Oct-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-9025 keV 25 | S(n)= 13796 keV 6 | S(p)= 1997 keV 5 | Q(α)= -3540 keV 6 | ||
Reference: 2021WA16 |
References: | |||
A | 89Ru ε decay (1.32 S) | B | 90Rh εp decay (0.56 S) |
C | 58Ni(40Ca,P2AG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABC | (9/2+) | 12.8 s 9 % ε = 100 | |||||
62.6 5 | C | (1/2-) | 12.9 s 8 % ε = 100 % IT < 0.01 | |||||
179.2 1 | A C | (7/2+) | 179.2 1 | 100 | D+Q | 0.0 | (9/2+) | |
401.6 4 | A | (5/2+) | 401.6 4 | 100 | 0.0 | (9/2+) | ||
790.0 4 ? | C | (5/2-) | 727.4 3 | 100 | 62.6 | (1/2-) | ||
795.9 1 | BC | (13/2+) | < 8.3 ps | 795.9 1 | 100 | E2 | 0.0 | (9/2+) |
998.3 2 | C | (7/2-) | 819.1 1 | 100 | 179.2 | (7/2+) | ||
1014.6 4 | A | (7/2+) | 835.4 4 | 100 | 179.2 | (7/2+) | ||
1101.3 2 | C | (11/2+) | 922.0 4 1101.3 3 | 79 11 100 11 | Q D+Q | 179.2 0.0 | (7/2+) (9/2+) | |
1331.9 3 ? | C | (9/2-) | 541.9 2 | 100 | Q | 790.0 | (5/2-) | |
1518.2 5 | A | (5/2+) | 1339.0 5 | 100 | 179.2 | (7/2+) | ||
1682.1 2 | C | (11/2-) | 683.7 1 | 100 | Q | 998.3 | (7/2-) | |
1731.8 2 | C | (17/2+) | < 9.0 ps | 935.9 1 | 100 | E2 | 795.9 | (13/2+) |
1896.9 2 | C | (13/2-) | 214.8 1 565.0 2 | 100 5 23 5 | D+Q Q | 1682.1 1331.9 | (11/2-) (9/2-) | |
2031.9 2 | C | (17/2+) | 299.9 2 1236.3 3 | 33 21 100 21 | 1731.8 795.9 | (17/2+) (13/2+) | ||
2043.6 3 | C | (15/2+) | 942.3 4 1248.5 6 | 100 27 52 27 | Q | 1101.3 795.9 | (11/2+) (13/2+) | |
2320.5 2 | C | (17/2-) | 276.9 2 423.5 2 | 21 2 100 4 | D Q | 2043.6 1896.9 | (15/2+) (13/2-) | |
2427.1 2 | C | (21/2+) | < 26 ps | 395.3 2 695.3 1 | 12 1 100 1 | E2 Q | 2031.9 1731.8 | (17/2+) (17/2+) |
2530.5 3 | C | (17/2-) | 210.1 2 | 100 | 2320.5 | (17/2-) | ||
2923.8 3 | C | (19/2-) | 603.3 3 | 100 | 2320.5 | (17/2-) | ||
3103.5 2 | C | (23/2+) | 676.4 1 | 100 | D+Q | 2427.1 | (21/2+) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3112.8 2 | C | (21/2-) | 189.1 3 792.4 1 | 5 2 100 2 | Q | 2923.8 2320.5 | (19/2-) (17/2-) | |
3217.7 2 | C | (25/2+) | 114.2 1 790.5 1 | 33 7 100 7 | D+Q Q | 3103.5 2427.1 | (23/2+) (21/2+) | |
3311.4 4 | C | (21/2-) | 198.6 4 781.0 4 | 100 32 89 32 | Q | 3112.8 2530.5 | (21/2-) (17/2-) | |
4065.2 2 | C | (25/2-) | 952.3 1 | 100 | Q | 3112.8 | (21/2-) | |
4224.0 3 ? | C | (25/2-) | 912.8 4 | 100 | Q | 3311.4 | (21/2-) | |
4243.2 2 | C | (29/2+) | 1025.5 1 | 100 | Q | 3217.7 | (25/2+) | |
4713.6 3 | C | (27/2-) | 489.6 2 648.6 2 | 47 13 100 13 | D+Q D+Q | 4224.0 4065.2 | (25/2-) (25/2-) | |
4942.3 3 | C | (29/2-) | 228.8 2 | 11 3 | D+Q | 4713.6 | (27/2-) | |
5113.8 3 | C | (29/2-) | 400.1 2 1048.4 5 | 100 17 41 17 | D+Q | 4713.6 4065.2 | (27/2-) (25/2-) | |
5329.2 2 | C | (33/2+) | 1086.0 1 | 100 | Q | 4243.2 | (29/2+) | |
5332.1 3 | C | (31/2-) | 218.3 2 389.8 1 618.7 2 1088.9 4 | 23 7 100 10 22 7 11 4 | D+Q D+Q Q D | 5113.8 4942.3 4713.6 4243.2 | (29/2-) (29/2-) (27/2-) (29/2+) | |
5650.9 3 | C | (33/2-) | 318.8 1 | 100 | D+Q | 5332.1 | (31/2-) | |
6190.5 3 | C | (35/2+) | 861.3 1 | 100 | D+Q | 5329.2 | (33/2+) | |
6413.7 3 | C | (35/2-) | 1081.6 2 | 100 | Q | 5332.1 | (31/2-) | |
6545.9 3 | C | (37/2+) | 355.5 2 1216.5 5 | 100 10 49 10 | D+Q | 6190.5 5329.2 | (35/2+) (33/2+) | |
6612.0 4 | C | (37/2-) | 198.3 4 961.1 2 | 28 8 100 8 | Q | 6413.7 5650.9 | (35/2-) (33/2-) | |
7011.3 3 ? | C | (37/2+) | 820.6 2 | 100 | D+Q | 6190.5 | (35/2+) | |
7402.1 3 | C | (39/2+) | 390.6 2 1211.9 3 | 92 19 100 19 | D+Q Q | 7011.3 6190.5 | (37/2+) (35/2+) | |
7765.7 4 | C | (41/2-) | 1153.7 2 | 100 | Q | 6612.0 | (37/2-) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
7772.0 4 | C | (41/2+) | 369.8 2 1227.0 6 | 100 10 41 10 | D+Q | 7402.1 6545.9 | (39/2+) (37/2+) | |
9109.8 7 | C | (45/2+) | 1337.8 5 | 100 | 7772.0 | (41/2+) | ||
9163.2 6 | C | (45/2-) | 1397.4 4 | 100 | Q | 7765.7 | (41/2-) | |
X | C | J AP (35/2-) | ||||||
1149.2+X 3 | C | J+2 | 1149.2 3 | 0.30 5 | X | J AP (35/2-) | ||
2408.1+X 4 | C | J+4 | 1258.83 11 | 1.00 5 | 1149.2+X | J+2 | ||
3792.4+X 4 | C | J+6 | 1384.35 7 | 0.90 5 | 2408.1+X | J+4 | ||
5313.6+X 4 | C | J+8 | 1521.18 8 | 0.95 5 | 3792.4+X | J+6 | ||
6981.7+X 4 | C | J+10 | 1668.09 6 | 1.00 5 | 5313.6+X | J+8 | ||
8800.6+X 4 | C | J+12 | 1818.82 8 | 1.00 5 | 6981.7+X | J+10 | ||
10775.2+X 4 | C | J+14 | 1974.57 9 | 0.85 5 | 8800.6+X | J+12 | ||
12911.2+X 4 | C | J+16 | 2136.01 10 | 0.60 3 | 10775.2+X | J+14 | ||
15209.6+X 4 | C | J+18 | 2298.34 13 | 0.40 3 | 12911.2+X | J+16 | ||
17671.6+X 17 | C | J+20 | 2462.0 16 | 0.20 2 | 15209.6+X | J+18 | ||
20291+X 4 ? | C | J+22 | 2619 3 ? | 0.06 2 | 17671.6+X | J+20 |
Jπ(level): From 1995Ru03 unless otherwise stated. These are based on systematics of nuclides in this mass region. The g.s. and 62.6 are identified with πg9/2 and πp1/2 configurations. The assignments for higher states are based on γγ(θ)(DCO) data with the assumption of mult=E2 for ΔJ=2, mult=M1+E2 for ΔJ=1, admixed transitions, and mult=E1 for ΔJ=1 transitions. It is also assumed that spins ascend with excitation energy in yrast-type pattern of level population in heavy-ion reactions
E(γ): From 58Ni(40Ca,p2αγ), unless otherwise stated
I(γ): Branching ratios from Table 4 of 1995Ru03. For SD band, values are relative intensities within the band, normalized to ≈1 for the most intense transition
M(γ): Multipolarities of ΔJ=1, M1+E2 and ΔJ=2, E2 are assigned in 58Ni(40Ca,p2αγ) (1995Ru03). Evaluator assigne ΔJ=1, D+Q for the former and ΔJ=2, Q for the latter, as DCO data are insensitive to parity determination. When level half-life is available, ΔJ=2, Q transitions are assigned ΔJ=2, E2 from RUL (for E2 and M2)
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Yrast sequence | |||||||
0.0 | (9/2+) | 12.8 s 9 % ε = 100 | |||||
795.9 1 | (13/2+) | < 8.3 ps | |||||
1731.8 2 | (17/2+) | < 9.0 ps | 935.9 1 | 100 | E2 | 795.9 | (13/2+) |
2427.1 2 | (21/2+) | < 26 ps | 395.3 2 695.3 1 | 12 1 100 1 | E2 Q | 2031.9 1731.8 | (17/2+) (17/2+) |
3217.7 2 | (25/2+) | 114.2 1 790.5 1 | 33 7 100 7 | D+Q Q | 3103.5 2427.1 | (23/2+) (21/2+) | |
4243.2 2 | (29/2+) | 1025.5 1 | 100 | Q | 3217.7 | (25/2+) | |
5329.2 2 | (33/2+) | 1086.0 1 | 100 | Q | 4243.2 | (29/2+) | |
6545.9 3 | (37/2+) | 355.5 2 1216.5 5 | 100 10 49 10 | D+Q | 6190.5 5329.2 | (35/2+) (33/2+) | |
7772.0 4 | (41/2+) | 369.8 2 1227.0 6 | 100 10 41 10 | D+Q | 7402.1 6545.9 | (39/2+) (37/2+) | |
9109.8 7 | (45/2+) | 1337.8 5 | 100 | 7772.0 | (41/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - SD band. | |||||||
X | J AP (35/2-) | ||||||
1149.2+X 3 | J+2 | ||||||
2408.1+X 4 | J+4 | 1258.83 11 | 1.00 5 | 1149.2+X | J+2 | ||
3792.4+X 4 | J+6 | 1384.35 7 | 0.90 5 | 2408.1+X | J+4 | ||
5313.6+X 4 | J+8 | 1521.18 8 | 0.95 5 | 3792.4+X | J+6 | ||
6981.7+X 4 | J+10 | 1668.09 6 | 1.00 5 | 5313.6+X | J+8 | ||
8800.6+X 4 | J+12 | 1818.82 8 | 1.00 5 | 6981.7+X | J+10 | ||
10775.2+X 4 | J+14 | 1974.57 9 | 0.85 5 | 8800.6+X | J+12 | ||
12911.2+X 4 | J+16 | 2136.01 10 | 0.60 3 | 10775.2+X | J+14 | ||
15209.6+X 4 | J+18 | 2298.34 13 | 0.40 3 | 12911.2+X | J+16 | ||
17671.6+X 17 | J+20 | 2462.0 16 | 0.20 2 | 15209.6+X | J+18 | ||
20291+X 4 | J+22 | 2619 3 ? | 0.06 2 | 17671.6+X | J+20 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (9/2+) | 12.8 s 9 % ε = 100 | Configuration=πg9/2 (1995Ru03). E(level): Yrast sequence. |
62.6 | (1/2-) | 12.9 s 8 % ε = 100 % IT < 0.01 | Configuration=πp1/2 (1995Ru03). |
401.6 | (5/2+) | Jπ(level): Tentative assignments proposed by 2019Pa16 in 89Ru ε decay, based on shell-model calculations. | |
795.9 | (13/2+) | < 8.3 ps | E(level): Yrast sequence. |
1014.6 | (7/2+) | Jπ(level): Tentative assignments proposed by 2019Pa16 in 89Ru ε decay, based on shell-model calculations. | |
1518.2 | (5/2+) | Jπ(level): Tentative assignments proposed by 2019Pa16 in 89Ru ε decay, based on shell-model calculations. | |
1731.8 | (17/2+) | < 9.0 ps | E(level): Yrast sequence. |
2427.1 | (21/2+) | < 26 ps | E(level): Yrast sequence. |
3217.7 | (25/2+) | E(level): Yrast sequence. | |
4243.2 | (29/2+) | E(level): Yrast sequence. | |
5329.2 | (33/2+) | E(level): Yrast sequence. | |
6545.9 | (37/2+) | E(level): Yrast sequence. | |
7772.0 | (41/2+) | E(level): Yrast sequence. | |
9109.8 | (45/2+) | E(level): Yrast sequence. | |
X | J AP (35/2-) | E(level): SD band. | |
1149.2+X | J+2 | E(level): SD band. | |
2408.1+X | J+4 | E(level): SD band. | |
3792.4+X | J+6 | E(level): SD band. | |
5313.6+X | J+8 | E(level): SD band. | |
6981.7+X | J+10 | E(level): SD band. | |
8800.6+X | J+12 | E(level): SD band. | |
10775.2+X | J+14 | E(level): SD band. | |
12911.2+X | J+16 | E(level): SD band. | |
15209.6+X | J+18 | E(level): SD band. | |
17671.6+X | J+20 | E(level): SD band. | |
E(level) | Jπ(level) | T1/2(level) | Comments |
20291+X | J+22 | E(level): SD band. |
E(level) | E(gamma) | Comments |
179.2 | 179.2 | E(γ): same value in 89Ru ε decay and 58Ni(40Ca,p2αγ) |
401.6 | 401.6 | E(γ): From 89Ru ε decay |
795.9 | 795.9 | E(γ): from 58Ni(40Ca,p2αγ). Other: 797.7 17 in 90Rh εp decay M(γ): ΔJ=2, Q from DCO, RUL(for E2 amd M2) gives E2 |
1014.6 | 835.4 | E(γ): From 89Ru ε decay |
1518.2 | 1339.0 | E(γ): From 89Ru ε decay |
1731.8 | 935.9 | M(γ): ΔJ=2, Q from DCO, RUL(for E2 amd M2) gives E2 |
2320.5 | 276.9 | M(γ): ΔJ=1, D+Q or d from DCO, assumed (E1) from level scheme |
2427.1 | 395.3 | M(γ): ΔJ=2, Q from DCO, RUL(for E2 amd M2) gives E2 |
5332.1 | 1088.9 | M(γ): ΔJ=1, D+Q or d from DCO, assumed (E1) from level scheme |
Two activities in 89Tc isotope produced and identified by 1981OxZZ (also 1983OxZZ) in bombardment of 92Mo by protons; and by 1991He04 in bombardment of Ni by 32S beam.
Measured mass excess of 89Tc: 2008We10 using JYFLTRAP and SHIPTRAP
DICT$ 58Ni(40Ca,p2αγ)=58Ni(40Ca,p2αγ)
Levels: Detailed particle-hole shell model configurations are given by 1995Ru03 for levels above 1700. For positive-parity states, multi-particle configurations involve πg9/2 and νg9/2 and for negative-parity states, πp1/2, πg9/2, νg9/2 and νp1/2 orbitals. Based on calculations by 1995Ru03, levels above 2300 are interpreted as shell-model states, whereas, those at lower energy are likely to have collective components. See also 1997He24 for structure calculations
Gammas: Experimental branching ratios are compared with those calculated from shell-model (see Table 4 in 1995Ru03)
Q-value: Q(ε)=7620 5, Q(εp)=1490 60, S(2n)=25847 6, S(2p)=8098 8 (2021Wa16)