Results:2 different decay possibilities were found


Dataset #1:

Author: C. W. Reich   Citation:Nuclear Data Sheets 113, 2537 (2012)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
156
67
Ho
 52.37    1-   9.5 s 15    IT       
156
67
Ho
 

Electrons:

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



Auger L     5.33      58.8 % 6   0.00313 3 
CE L    42.9758 4       74.0 %  0.0318
CE M    50.2417 6       20.5 %  0.01030
CE N    51.9343 8        4.80 %  0.00249
CE O    52.339       0.592 %  3.10E-4

Gamma and X-ray radiation:

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



XR l     6.72      15.2 % 6   0.00102 4 
    52.37       0.02397507 %  1.255574E-5

Dataset #2:

Author: C. W. Reich   Citation:Nuclear Data Sheets 113, 2537 (2012)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
156
67
Ho
 52.4+XAP    9+   7.6 m 3    ε   5.05E+3   
156
66
Dy
 

Electrons:

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



Auger L     5.16      29.0 % 3   0.001496 16 
Auger K    37.2       1.65 % 11   6.1E-4 4 
CE K    84.0115 5       18.9 %  0.01590
CE L   128.7542 5       11.60 %  0.01494
CE M   135.7532 4        2.76 %  0.00374
CE N   137.3837 5        0.620 %  8.51E-4
CE O   137.762       0.0760 %  1.047E-4
CE K   212.4115 5        4.68 %  0.00995
CE L   257.1542 5        1.337 %  0.00344
CE M   264.1532 4        0.310 %  8.19E-4
CE N   265.7837 5        0.0704 %  1.87E-4
CE O   266.161       0.00914 %  2.43E-5
CE K   312.46 5        2.00 %  0.00624
CE L   357.20 5        0.450 %  0.001608
CE M   364.20 5        0.1027 %  3.74E-4
CE N   365.83 5        0.0234 %  8.55E-5
CE O   366.21 5        0.00314 %  1.151E-5
CE K   391.53 5        0.937 %  0.00367
CE L   436.27 5        0.187 %  8.18E-4
CE M   443.27 5        0.0424 %  1.88E-4
CE N   444.90 5        0.00969 %  4.31E-5
CE O   445.28 5        0.001326 %  5.90E-6
CE K   454.88 10        0.073 % 7   3.3E-4 3 
CE L   499.62 10        0.0137 % 14   6.8E-5 7 
CE M   506.62 10        0.0031 % 3   1.56E-5 16 
CE N   508.25 10        7.1E-4 % 7   3.6E-6 4 
CE O   508.63 10        9.8E-5 % 10   5.0E-7 5 

Gamma and X-ray radiation:

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



XR l     6.5       7.1 % 3   4.59E-4 19 
XR kα2    45.208       7.13 % 16   0.00322 7 
XR kα1    45.988      12.6 % 3   0.00581 12 
XR kβ3    51.947       1.32 % 3   6.84E-4 14 
XR kβ1    52.113       2.55 % 5   0.00133 3 
XR kβ2    53.476       0.852 % 19   4.55E-4 10 
   137.8      40.005 %  0.0551
   266.2      68.58 %  0.183
   366.25 5       72.39 %  0.26513
   445.32 5       57.15 %  0.25450
   508.67 10        6.3 % 6   0.032 3 
Annihil.   511.0      15.45 % 
  1063.38 10        6.3 % 17   0.067 18 
  1572.05 5       51 % 3   0.81 4 
  2017.4 1       17.1 % 19   0.35 4 

Gamma Coincidence Data:

For each gamma, the list of gammas in coincidence is given.
If experimentally known, an estimate of the average time interval (in seconds) between both gammas is given.

E(γ)Coincidence
   137.8266.2, 366.25, 445.32, 508.67, 1063.38, 1572.05, 2017.4
   266.2137.8, 366.25, 445.32, 508.67, 1063.38, 1572.05, 2017.4
   366.25137.8, 266.2, 445.32, 508.67, 1063.38, 1572.05, 2017.4
   445.32137.8, 266.2, 366.25, 508.67, 1063.38, 1572.05
   508.67137.8, 266.2, 366.25, 445.32, 1063.38
  1063.38137.8, 266.2, 366.25, 445.32, 508.67
  1572.05137.8, 266.2, 366.25, 445.32
  2017.4137.8, 266.2, 366.25