ADOPTED LEVELS for 173Er

Author: V. S. Shirley |  Citation: Nucl. Data Sheets 75,377 (1995) |  Cutoff date: 1-Oct-1993 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2.60×103 keV SYS(n)= 5.24×103 keV SYS(p)= 9.5×103 keV SYQ(α)= -5.E2 keV SY
Reference: 2012WA38

General Comments:

Identification: genetic relationship of 1.4-min activity from 176Yb(n,α) to known radiations from 173Tm, cross bombardments (natural and enriched targets) (1972Pu02).

α 1.9-min activity, previously assigned to 173Er (1960Wi10), was reassigned to 176Tm (1970Tu07).

The properties of a 12-min activity, previously assigned to 173Er (1968Ih01), are very different from those attributed to 173Er by 1972Pu02. The 12-min activity probably includes contaminants, and remains unassigned.

Q-value: Note: Current evaluation has used the following Q record





E(level)
(keV)
Jπ(level) T1/2(level)
  0.0 (7/2-) 1.4 m 1 
% β- = 100

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments

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