Results:2 different decay possibilities were found


Dataset #1:

Authors: P.K. Joshi, B. Singh, S. Singh, A.K. Jain   Citation:Nuclear Data Sheets 138, 1 (2016)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
139
58
Ce
 754.248    11/2-   57.58 s 32    IT: 100      
139
58
Ce
 

Electrons:

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



Auger L     3.94       5.57 % 7   2.19E-4 3 
Auger K    28.4       0.54 % 3   1.54E-4 7 
CE K   713.80 8        6.04 % 8   0.0431 6 
CE L   747.69 8        1.075 % 15   0.00804 11 
CE M   752.81 8        0.233 % 4   0.00175 3 
CE N   753.95 8        0.0516 % 8   3.89E-4 6 
CE O   754.21 8        0.00820 % 12   6.18E-5 9 

Gamma and X-ray radiation:

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



XR l     4.84       0.80 % 3   3.85E-5 16 
XR kα2    34.279       1.56 % 4   5.36E-4 14 
XR kα1    34.72       2.84 % 8   9.9E-4 3 
XR kβ3    39.17       0.276 % 7   1.08E-4 3 
XR kβ1    39.258       0.533 % 14   2.09E-4 5 
XR kβ2    40.228       0.172 % 4   6.90E-5 17 
   754.24 8       93 % 9   0.70 7 

Dataset #2:

Authors: P.K. Joshi, B. Singh, S. Singh, A.K. Jain   Citation:Nuclear Data Sheets 138, 1 (2016)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
139
58
Ce
 0.0    3/2+   137.641 d 20    ε: 100  264.6 20   
139
57
La
 

Electrons:

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



Auger L     3.8      90.7 % 8   0.00345 3 
Auger K    27.4       8.4 % 4   0.00230 10 
CE K   126.9329 12       17.78 % 9   0.02257 11 
CE L   159.5912 12        2.39 % 10   0.00382 16 
CE M   164.4962 11        0.494 % 7   8.12E-4 12 
CE N   165.5871 14        0.1085 % 16   1.80E-4 3 
CE O   165.8371 11        0.0177 % 3   2.93E-5 5 

Gamma and X-ray radiation:

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



XR l     4.65      12.0 % 5   5.59E-4 24 
XR kα2    33.034      22.7 % 6   0.00749 18 
XR kα1    33.442      41.3 % 10   0.0138 3 
XR kβ3    37.72       3.98 % 9   0.00150 3 
XR kβ1    37.801       7.67 % 18   0.00290 7 
XR kβ2    38.726       2.48 % 6   9.60E-4 22 
   165.8575 11       79.90 % 5   0.13252 8