ADOPTED LEVELS, GAMMAS for 151Tm
Author: Balraj Singh | Citation: Nucl. Data Sheets 110, 1 (2009) | Cutoff date: 20-Nov-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-9.2×103 keV 3 | S(n)= 12353 keV SY | S(p)= 230 keV 9 | Q(α)= 2559 keV 20 | ||
Reference: 2017WA10 |
References: | |||
A | 151Tm IT decay (0.451 μs) | B | 151Tm IT decay (24 NS) |
C | 151Yb ε decay (1.6 S):MIXED | D | 152Lu εp decay (0.7 S) |
E | 155Lu α decay (68 MS) | F | 155Lu α decay (138 MS) |
G | 155Lu α decay (2.69 MS) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDE G | (11/2-) | 4.17 s 11 % ε = 100 | |||||
0.0+X | C F | (1/2+) | 6.6 s 20 % ε = 100 | |||||
108.4+X | C | (3/2+) | 108.4 1 | 100 | (M1) | 0.0+X | (1/2+) | |
582.6+X | C | (5/2+) | 474.2 2 | 100 | 108.4+X | (3/2+) | ||
1074.0 6 | C | 1074.0 6 | 100 | 0.0 | (11/2-) | |||
1102.7+X | C | (7/2+) | 520.1 2 | 100 | 582.6+X | (5/2+) | ||
1477.60 10 | AB | (15/2-) | 1477.7 1 | 100 | 0.0 | (11/2-) | ||
1489.83 18 | AB | (15/2+) | 1489.8 2 | 100 | 0.0 | (11/2-) | ||
1905.64 13 ? | AB | (19/2+) | 415.8 1 | 100 | 1489.83 | (15/2+) | ||
2176.48 19 | AB | (19/2-) | 698.8 2 | 100 | 1477.60 | (15/2-) | ||
2299.55 20 | AB | (23/2+) | 393.9 1 | 100 | 1905.64 | (19/2+) | ||
2515.27 20 | AB | (23/2-) | 215.7 2 338.8 1 | 14 1 100 5 | 2299.55 2176.48 | (23/2+) (19/2-) | ||
2655.67 22 | AB | (27/2-) | 0.451 µs 34 % IT = 100 | 140.4 1 | 100 | E2 | 2515.27 | (23/2-) |
3555.6 3 | B | 1256.0 2 | 100 | 2299.55 | (23/2+) | |||
3981.4 4 | B | 425.8 3 | 100 | 3555.6 | ||||
3987.9 3 | B | (31/2-) | 1332.2 1 | 100 | (E2) | 2655.67 | (27/2-) | |
4407.2 3 | B | 425.8 3 | 100 | 3981.4 | ||||
4612.7 3 | B | (35/2-) | 624.8 1 | 100 | (E2) | 3987.9 | (31/2-) | |
5858.3 4 | B | (37/2) | 1245.6 2 1451 1 | 100 6 10 6 | (D) | 4612.7 4407.2 | (35/2-) | |
6908.5 4 | B | 24 ns 4 | 1050.2 2 | 100 | 5858.3 | (37/2) |
E(level): From least-squares fit to Eγ’s. From systematics the ground state is expected to be the s1/2 single proton state and the h11/2 state to be the isomer. However, this has not been established experimentally.
Jπ(level): From shell-model considerations. The negative parity states are well described by πh11/25 yrast levels. The positive parity levels are assumed to have an h11/2 proton coupled to a 3-, 5-, 7- core. The 0+x (1/2+), 108+x (3/2+), 583+x (5/2+) and 1103+x (7/2+) levels are interpreted as the s1/2, d3/2, d5/2, g7/2 single proton states, respectively
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
108.4+X | (3/2+) | 108.4 1 | (M1) | 2.46 | α=2.46 | |
2655.67 | (27/2-) | 0.451 µs 34 % IT = 100 | 140.4 1 | E2 | 0.90 | B(E2)(W.u.)=0.257 14, α=0.90 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
E(level) | E(gamma) | Comments |
108.4+X | 108.4 | M(γ): from α(K)exp in 151Yb ε decay |
582.6+X | 474.2 | M(γ): From isotonic systematics, probable mult=M1 |
1102.7+X | 520.1 | M(γ): From isotonic systematics, probable mult=M1 |
1905.64 | 415.8 | E(γ): Ordering of 415-393 cascade is tentative |
2299.55 | 393.9 | E(γ): Ordering of 415-393 cascade is tentative |
2655.67 | 140.4 | M(γ): from α(exp) determined from intensity balance |
3981.4 | 425.8 | E(γ): Multiply placed |
3987.9 | 1332.2 | M(γ): From γ(θ) in IT decay |
4407.2 | 425.8 | E(γ): Multiply placed |
4612.7 | 624.8 | M(γ): From γ(θ) in IT decay |
5858.3 | 1245.6 | M(γ): From γ(θ) in IT decay |
Theoretical calculations (levels, moments, etc.): 2000Ma90, 1993To07, 1992Di05, 1982We12, 1981La26
Q-value: ΔS(n)=197
Q-value: Q(ε)=7490 3, S(2n)=23033 syst 197, S(2p)=3704 9, Q(εp)=3884 16