ADOPTED LEVELS for 221At

Authors: Ashok Jain, Sukhjeet Singh, Suresh Kumar, Jagdish Tuli |  Citation: Nucl. Data Sheets 108, 883 (2007) |  Cutoff date: 15-Jan-2007 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2310 keV 16S(n)= 5664 keV 20S(p)= 5770 keV 23Q(α)= 5628 keV 23
Reference: 2012WA38

General Comments:

Assignment: 232Th(600-MeV p,x) mass separation; parent of 25-min 221Rn (1989Bu09).

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

Q-value: Estimated ΔQ(β-)=200, ΔS(n)=200, ΔS(p)=410, ΔQ(α)=280 (2003Au03)




E(level)
(keV)
T1/2(level)
  0.0 2.3 m 2 
% β- = 100

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.0 2.3 m 2 
% β- = 100
The activity of β- daughter only was observed by 1989Bu09.
E(level): The activity of β- daughter only was observed by 1989Bu09.

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