ADOPTED LEVELS for 221Rn

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-)=1194 keV 8S(n)= 4212 keV 6S(p)= 7192 keV 16Q(α)= 6162.5 keV 22
Reference: 2012WA38

General Comments:

Assignment: thorium(110-MeV p); chem; parent of 221Fr, 217At, 213Po (1956Mo15).

Theory, calculations:

1991Cw01: Level energy calculations

1986Po06,1986Pi11,1986De32: Rates for the most probable heavy-ion decays were calculated by 1986Po06 (14C, 8Be, 13C, 12C, 15C, 10Be, 15N and 18O emission), by 1986Pi11 (14C emission), and by 1986De32 (14C emission).

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





E(level)
(keV)
Jπ(level) T1/2(level)
   0.0 7/2+ 25 m 2 
% β- = 78 1
% α = 22 1
  30 10  (3/2+)  

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments

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