Results:2 different decay possibilities were found


Dataset #1:

Authors: B. Singh, R. Shearman   Citation:Nuclear Data Sheets 147, 382 (2018)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
217
90
Th
 673.31    (15/2-)   141 ns 50    IT: 100      
217
90
Th
 

Electrons:

Energy
(keV)
Intensity
(%)
Dose
( MeV/Bq-s )



Auger L     9.48       2.48 % 9   2.35E-4 8 
Auger K    69.2       0.107 % 14   7.4E-5 10 
CE K   563.65 10        3.44 %  0.0194
CE L   652.83 10        1.98 %  0.01293
CE M   668.12 10        0.527 %  0.0035181
CE N   671.97 10        0.1414 %  9.50E-4
CE O   673.12 10        0.0325 %  2.19E-4
CE P   673.28 10        0.00580 %  3.91E-5

Gamma and X-ray radiation:

Energy
(keV)
Intensity
(%)
Dose
( MeV/Bq-s )



XR l    13.0       2.25 % 9   2.92E-4 11 
XR kα2    89.957       0.968 % 21   8.71E-4 19 
XR kα1    93.35       1.56 % 3   0.00146 3 
XR kβ3   104.819       0.193 % 4   2.03E-4 4 
XR kβ1   105.604       0.369 % 7   3.89E-4 8 
XR kβ2   108.582       0.141 % 3   1.53E-4 3 
   673.3 1       93.861 %  0.63197

Dataset #2:

Author: M. S. Basunia   Citation:Nuclear Data Sheets 181, 475 (2022)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
217
90
Th
 0.0    (9/2+)   0.252 ms 4    α: 100  9435   
213
88
Ra
 

Alphas:

Energy
(keV)
Intensity
(%)
Dose
( MeV/Bq-s )



  8456 4       3.69 % 14   0.312 12 
  8726 4       1.65 % 8   0.144 7 
  9260 4      94.7 % 7   8.77 6