Results:3 different decay possibilities were found


Dataset #1:

Author: N. Nica   Citation:Nuclear Data Sheets 200, 2 (2025)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
158
73
Ta
 2809    19-   6.1 µs 1    α   6124   
154
71
Lu
 

Alphas:

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



  8644 11       1.40 %  0.121

Dataset #2:

Author: N. Nica   Citation:Nuclear Data Sheets 200, 2 (2025)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
158
73
Ta
 1419    (9+)   36.0 ms 10    α: 95 5  6124   
154
71
Lu
 

Alphas:

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



  5981 4       0.094 % 23   0.0056 14 
  6021 4       2.6 % 5   0.15 3 
  6046 4      91 % 13   5.5 8 

Dataset #3:

Author: N. Nica   Citation:Nuclear Data Sheets 200, 2 (2025)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
158
73
Ta
 0    (2-)   55 ms 15    α   6124   
154
71
Lu
 

Alphas:

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



  5968 4      95 %  5.7