Results:2 different decay possibilities were found


Dataset #1:

Author: Balraj Singh and Jun Chen   Citation:Nuclear Data Sheets 178, 41 (2021).

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
64
29
Cu
 0.0    1+   12.7006 h 20    ε: 61.5 3  1674.62 21   
64
28
Ni
 

Beta+:

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




   278.008 90    652.62 21      17.49 % 15   0.0486 4 

Mean beta+ energy: 278 keV 3, total beta+ intensity: 17.49 % 15, mean beta+ dose: 0.0486 MeV/Bq-s 7

Electrons:

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



Auger L     0.84      58.0 % 3   4.87E-4 3 
Auger K     6.54      22.62 % 19   0.001479 13 
CE K  1337.44 6        5.25E-5 % 9   7.03E-7 12 
CE L  1344.76 6        5.12E-6 % 9   6.89E-8 12 
CE M  1345.77 6        7.21E-7 % 13   9.71E-9 17 
CE N  1345.77 6        3.11E-8 % 6   4.19E-10 8 

Gamma and X-ray radiation:

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



XR l     0.85       0.491 % 24   4.17E-6 20 
XR kα2     7.461       4.77 % 24   3.56E-4 18 
XR kα1     7.478       9.4 % 4   7.0E-4 3 
XR kβ1     8.265       1.12 % 5   9.3E-5 4 
XR kβ3     8.265       0.58 % 3   4.78E-5 23 
Annihil.   511.0      35.0 % 3  
  1345.77 6        0.472 % 5   0.00635 6 

Dataset #2:

Author: Balraj Singh and Jun Chen   Citation:Nuclear Data Sheets 178, 41 (2021).

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
64
29
Cu
 0.0    1+   12.7006 h 20    β-: 38.5 3  579.6   
64
30
Zn
 

Beta-:

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




   190.74 24    579.6 6     38.5 % 4   0.0734 7 

Mean beta- energy: 191 keV 3, total beta- intensity: 38.5 % 4, mean beta- dose: 0.0734 MeV/Bq-s 12