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 10S(n)= 4178 keV 9S(p)= 1.290×104 keV 8Q(α)= -9280 keV 6
Reference: 2012WA38

References:
  A  102Sr β- decay 

General Comments:

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









E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)Final Levels
     0.0+XA HIGH J 0.36 s 4 
% β- = 100
% β-n = 4.9 12
    
     0.0+YA 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

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0+XHIGH J 0.36 s 4 
% β- = 100
% β-n = 4.9 12
-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+YLOW J 0.298 s 9 
% β- = 100
% β-n = 4.9 12
-n: weighted average of 6.0 17 (1986ReZS) and 4.0 15 (1996Me09) should be considered as a combined value for both isomers.

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