Results:2 different decay possibilities were found


Dataset #1:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 196, 342 (2024)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
206
87
Fr
 0    3+   ≈ 16 s   α   6923   
202
85
At
 

Alphas:

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



  6792 5      88 % 9   6.0 6 

Dataset #2:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 196, 342 (2024)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
206
87
Fr
 20040    7+   ≈ 16 s   α   6923   
202
85
At
 

Alphas:

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



  6790 3      85 % 9   5.8 6