ADOPTED LEVELS, GAMMAS for 102Y
Author: D. De Frenne | Citation: Nucl. Data Sheets 110, 1745 (2009) | Cutoff date: 31-Dec-2008
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=10420 keV 10 | S(n)= 4178 keV 9 | S(p)= 1.290×104 keV 8 | Q(α)= -9280 keV 6 | ||
Reference: 2012WA38 |
References: | |||
A | 102Sr β- decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
0.0+X | A | HIGH J | 0.36 s 4 % β- = 100 % β-n = 4.9 12 | ||||
0.0+Y | A | LOW J | 0.298 s 9 % β- = 100 % β-n = 4.9 12 | ||||
93.80+Y 6 | A | 93.89 8 | 100 | 0.0+Y | LOW J | ||
208.23+Y 9 | A | 114.46 15 208.16 13 | 32 3 100 7 | 93.80+Y 0.0+Y | LOW J | ||
243.85+Y 6 | A | 1+ | 35.58 18 150.15 10 243.80 8 | 1.0 4 34.0 18 100 5 | 208.23+Y 93.80+Y 0.0+Y | LOW J | |
311.70+Y 9 | A | 67.89 14 103.40 20 217.92 15 311.60 20 | 100 6 12.1 20 47 4 18 3 | 243.85+Y 208.23+Y 93.80+Y 0.0+Y | 1+ LOW J | ||
497.81+Y 10 | A | 186.15 15 253.95 15 404.20 20 498.4 6 | 29.4 29 100 6 4.6 21 7 4 | 311.70+Y 243.85+Y 93.80+Y 0.0+Y | 1+ LOW J | ||
645.4+Y 4 ? | A | 437.2 3 | 100 | 208.23+Y | |||
898.63+Y 22 | A | 655.1 3 804.5 3 | 95 21 100 24 | 243.85+Y 93.80+Y | 1+ | ||
1347.92+Y 14 | A | 1+ | 850.40 20 1036.00 20 1104.00 20 | 35 6 74 9 100 11 | 497.81+Y 311.70+Y 243.85+Y | 1+ | |
1689.58+Y 15 | A | 1+ | 1191.80 20 1378.1 3 1445.5 3 1689.4 4 | 100 12 38 10 36 8 18 6 | 497.81+Y 311.70+Y 243.85+Y 0.0+Y | 1+ LOW J |
E(level): From 102Sr β- decay. As Jπ=0+ for 102Sr g.s., very likely the lowest level observed in the β- decay of 102Sr is the low-spin isomer of 102Y. The energies of the observed levels are referred to the excitation energy of the low-spin 102Y isomer However in a recent paper of (2007Ch07) 2 states with J=(2) and (3) are mentioned. No high spin state mentioned. So new experiments needed to solve that problem of isomerism. That means that the results given here should be treated with great caution.
Jπ(level): Based on log ft in 102Sr β-decay which indicates allowed β transition. Jπ=1+ from log ft<4.5
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0+X | HIGH J | 0.36 s 4 % β- = 100 % β-n = 4.9 12 | %β-n: weighted average of 6.0 17 (1986ReZS) and 4.0 15 (1996Me09). Should be considered as a combined value for both isomers. |
0.0+Y | LOW J | 0.298 s 9 % β- = 100 % β-n = 4.9 12 | %β-n: weighted average of 6.0 17 (1986ReZS) and 4.0 15 (1996Me09) should be considered as a combined value for both isomers. |
Levels: From 2007Ch07: μ=+2.34 5 for Jπ=(2) and μ=+2.68 1 for Jπ=(3). The spectroscopic electric quadrupole moment Q(s)=+1.17 13 for Jπ=(2) and Q(s)=+1.36 16 for Jπ=(3)
Q-value: Note: Current evaluation has used the following Q record 9850 70505e+1 131.377×104 15-1.001×10410 2003Au03