Results:2 different decay possibilities were found


Dataset #1:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 111,275 (2010)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
184
72
Hf
 1272.2    (8-)   48 s 10    IT: 100      
184
72
Hf
 

Electrons:

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



Auger L     6.18      70 % 3   0.00430 18 
CE K     7.35 20       18 % 4   0.0014 3 
CE K    41.75 10       22.4 % 17   0.0093 7 
Auger K    44.8       2.8 % 3   0.00124 14 
CE L    61.43 20        3.4 % 7   0.0021 4 
CE M    70.10 20        0.76 % 16   5.4E-4 12 
CE N    72.16 20        0.18 % 4   1.3E-4 3 
CE O    72.67 20        0.025 % 5   1.8E-5 4 
CE L    95.83 10       39 % 3   0.037 3 
CE M   104.50 10        9.6 % 7   0.0100 8 
CE N   106.56 10        2.22 % 17   0.00237 18 
CE O   107.07 10        0.282 % 21   3.02E-4 23 
CE K   177.15 20        8.5 % 5   0.0151 9 
CE L   231.23 20        3.65 % 22   0.0084 5 
CE M   239.90 20        0.89 % 5   0.00214 13 
CE N   241.96 20        0.208 % 12   5.0E-4 3 
CE O   242.47 20        0.0277 % 16   6.7E-5 4 
CE K   302.25 20        3.08 %  0.00931
CE L   356.33 20        0.867 %  0.00309
CE M   365.00 20        0.206 %  7.53E-4
CE N   367.06 20        0.0484 %  1.78E-4
CE O   367.57 20        0.00671 %  2.47E-5
CE K   416.95 20        0.96 % 16   0.0040 7 
CE L   471.03 20        0.22 % 4   0.00104 18 
CE M   479.70 20        0.052 % 9   2.5E-4 4 
CE N   481.76 20        0.0122 % 21   5.9E-5 10 
CE O   482.27 20        0.0017 % 3   8.3E-6 14 
CE K   489.65 20        3.2 % 8   0.016 4 
CE L   543.73 20        0.57 % 14   0.0031 8 
CE M   552.40 20        0.13 % 3   7.2E-4 18 
CE N   554.46 20        0.031 % 8   1.7E-4 4 
CE O   554.97 20        0.0047 % 12   2.6E-5 7 

Gamma and X-ray radiation:

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



XR l     7.9      24.5 % 16   0.00193 12 
XR kα2    54.611      15.4 % 13   0.0084 7 
XR kα1    55.79      26.7 % 22   0.0149 12 
XR kβ3    62.985       2.99 % 24   0.00188 15 
XR kβ1    63.243       5.8 % 5   0.0037 3 
XR kβ2    64.942       1.97 % 16   0.00128 10 
    72.7 2       28 % 6   0.020 4 
   107.1 1       27.0 % 20   0.0289 21 
   242.5 2       87 % 5   0.211 12 
   367.6 2       96 %  0.35290
   482.3 2       59 % 10   0.28 5 
   555.0 2       36 % 9   0.20 5 

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
    72.7107.1, 242.5, 367.6, 482.3
   107.172.7, 242.5, 367.6, 482.3, 555.0
   242.572.7, 107.1, 367.6, 482.3, 555.0
   367.672.7, 107.1, 242.5, 482.3, 555.0
   482.372.7, 107.1, 242.5, 367.6
   555.0107.1, 242.5, 367.6

Dataset #2:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 111,275 (2010)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
184
72
Hf
 0.0    0+   4.12 h 5    β-: 100  1340 30   
184
73
Ta
 

Beta-:

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




   229 11      7.2E+2 3     36 % 4   0.082 10 
   290 12      8.9E+2 3     15.2 % 20   0.044 6 
   378 12      1.11E+3 3     47 % 12   0.18 5 

Mean beta- energy: 3.1E+2 keV 6, total beta- intensity: 98 % 13, mean beta- dose: 0.30 MeV/Bq-s 7

Electrons:

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



Auger L     6.35     170 % 9   0.0108 6 
CE L    29.72 20       71 % 12   0.021 4 
CE L    32.22 20       37 % 6   0.0118 21 
CE L    36.22 20       82 % 23   0.030 8 
CE M    38.69 20       16 % 3   0.0062 11 
CE N    40.83 20        3.8 % 6   0.0016 3 
CE M    41.19 20        8.3 % 15   0.0034 6 
CE O    41.37 20        0.61 % 10   2.5E-4 4 
CE N    43.33 20        2.0 % 4   8.6E-4 15 
CE O    43.87 20        0.31 % 6   1.38E-4 24 
CE M    45.19 20       21 % 6   0.009 3 
Auger K    46.2       1.4 % 4   6.7E-4 18 
CE N    47.33 20        4.8 % 13   0.0023 6 
CE O    47.87 20        0.62 % 17   3.0E-4 8 
CE K    71.68 20       29 % 8   0.021 5 
CE K   113.58 20        0.92 % 15   0.00104 17 
CE L   127.42 20       19 % 3   0.024 4 
CE M   136.39 20        4.7 % 8   0.0065 11 
CE N   138.53 20        1.12 % 19   0.0015 3 
CE O   139.07 20        0.151 % 24   2.1E-4 3 
CE L   169.32 20        0.146 % 24   2.5E-4 4 
CE M   178.29 20        0.033 % 5   5.9E-5 10 
CE N   180.43 20        0.0078 % 13   1.40E-5 23 
CE O   180.97 20        0.00118 % 19   2.1E-6 3 
CE K   277.48 20        0.47 % 8   0.00129 23 
CE L   333.22 20        0.070 % 13   2.3E-4 4 
CE M   342.19 20        0.016 % 3   5.4E-5 10 
CE N   344.33 20        0.0038 % 7   1.29E-5 23 
CE O   344.87 20        5.8E-4 % 10   2.0E-6 4 

Gamma and X-ray radiation:

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



XR l     8.15      64 % 8   0.0052 6 
    41.4 2        9.4 % 16   0.0039 7 
    43.9 2        5.8 % 10   0.0025 4 
    47.9 2        1.1 % 3   5.5E-4 15 
XR kα2    56.28       8.2 % 21   0.0046 12 
XR kα1    57.535      14 % 4   0.0082 21 
XR kβ3    64.948       1.6 % 4   0.0010 3 
XR kβ1    65.222       3.1 % 8   0.0020 5 
XR kβ2    66.982       1.1 % 3   7.1E-4 18 
   139.1 2       46 % 7   0.063 9 
   181.0 2       14.1 % 23   0.025 4 
   344.9 2       35 % 6   0.121 22 

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
    41.443.9, 47.9, 139.1, 181.0, 344.9
    43.941.4, 47.9, 139.1, 181.0, 344.9
    47.941.4, 43.9, 139.1, 181.0, 344.9
   139.141.4, 43.9, 47.9, 181.0, 344.9
   181.041.4, 43.9, 47.9, 139.1
   344.941.4, 43.9, 47.9, 139.1