ADOPTED LEVELS for 222Ac

Authors: Sukhjeet Singh, A. K. Jain, Jagdish K. Tuli |  Citation: Nucl. Data Sheets 112,2851 (2011) |  Cutoff date: 31-Mar-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-582 keV 14S(n)= 5.97×103 keV 5S(p)= 3631 keV 7Q(α)= 7137.4 keV 21
Reference: 2012WA38


E(level)
(keV)
Jπ(level) T1/2(level)
    0.0 1- 5.0 s 5 
% ε = 1 1
% α = 99 1
    0.0+X 63 s 3 
% ε ≥ 0.7 LE 2
% α ≥ 88
% IT ≤ 10
   41 14   
  137 14   

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    0.01- 5.0 s 5 
% ε = 1 1
% α = 99 1
Possible ε branching was estimated by 1966Wa23 as 1 to 2% from Iα(7.13-MeV a) of 218Rn shown in 222Ac α spectrum by 1964Mc21.
E(level): Possible ε branching was estimated by 1966Wa23 as 1 to 2% from Iα(7.13-MeV a) of 218Rn shown in 222Ac α spectrum by 1964Mc21.
    0.0+X 63 s 3 
% ε ≥ 0.7 LE 2
% α ≥ 88
% IT ≤ 10
%IT was deduced by 1972Es03 from ratio of Iα’s of 5-s 222Ac and 63S 222Ac.
E(level): %IT was deduced by 1972Es03 from ratio of Iα’s of 5-s 222Ac and 63S 222Ac.
   41   Level seen in 226Pa α decay.
E(level): Level seen in 226Pa α decay.
  137   Level seen in 226Pa α decay.
E(level): Level seen in 226Pa α decay.

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