Results:3 different decay possibilities were found


Dataset #1:

Authors: S. K. Basu, E.A. Mccutchan   Citation:Nuclear Data Sheets 165, 1 (2020)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
90
39
Y
 682.015    7+   3.19 h 6    IT: 99.9982 2      
90
39
Y
 

Electrons:

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



Auger L     1.91      11.57 % 13   2.21E-4 3 
Auger K    12.7       2.78 % 5   3.54E-4 7 
CE K   185.49 3        2.33 % 4   0.00432 8 
CE L   200.16 3        0.264 % 5   5.28E-4 10 
CE M   202.14 3        0.0451 % 9   9.12E-5 18 
CE N   202.48 3        0.00606 % 11   1.228E-5 23 
CE K   462.47 5        7.47 % 11   0.0345 5 
CE L   477.14 5        1.052 % 16   0.00502 8 
CE M   479.12 5        0.183 % 3   8.76E-4 13 
CE N   479.46 5        0.0242 % 4   1.159E-4 18 
CE K   664.8 6        0.0061 % 5   4.0E-5 4 
CE L   679.4 6        9.3E-4 % 8   6.3E-6 6 
CE M   681.4 6        1.61E-4 % 14   1.10E-6 10 
CE N   681.8 6        2.07E-5 % 18   1.41E-7 12 

Gamma and X-ray radiation:

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



XR l     1.92       0.344 % 9   6.61E-6 18 
XR kα2    14.883       2.05 % 7   3.05E-4 11 
XR kα1    14.958       3.93 % 15   5.88E-4 22 
XR kβ3    16.726       0.298 % 11   4.98E-5 19 
XR kβ1    16.738       0.577 % 22   9.7E-5 4 
XR kβ2    17.013       0.111 % 4   1.88E-5 7 
   202.53 3       97.0 % 5   0.1965 10 
   479.51 5       90.5 % 3   0.4341 16 
   681.8 6        0.32 % 3   0.00217 19 

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
   202.53479.51 (2.50E-10), 479.51 (2.50E-10)
   479.51202.53 (2.50E-10)
   479.51202.53 (2.50E-10)

Dataset #2:

Authors: S. K. Basu, E.A. Mccutchan   Citation:Nuclear Data Sheets 165, 1 (2020)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
90
39
Y
 682.015    7+   3.19 h 1    β-: 0.0018 2  2278.5 16   
90
40
Zr
 

Beta-:

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




   231.33 62    641.5 16      0.00180 % 20   4.2E-6 5 

Mean beta- energy: 2.3E+2 keV 4, total beta- intensity: 0.00180 % 20, mean beta- dose: 4.2E-6 MeV/Bq-s 8

Electrons:

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



Auger L     2.02       8.36E-7 % 3   1.689E-11 6 
Auger K    13.4       1.95E-7 % 3   2.62E-11 4 
CE K  2300.970 10        7.34E-7 %  1.690E-8
CE L  2316.437 10        8.33E-8 %  1.93E-9
CE M  2318.538 10        1.447E-8 %  3.36E-10
CE N  2318.917 10        2.05E-9 %  4.76E-11

Gamma and X-ray radiation:

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



XR l     2.04       2.74E-8 % 7   5.58E-13 14 
XR kα2    15.691       1.57E-7 % 4   2.47E-11 7 
XR kα1    15.775       3.01E-7 % 9   4.75E-11 14 
XR kβ3    17.653       2.33E-8 % 7   4.11E-12 12 
XR kβ1    17.667       4.52E-8 % 12   7.98E-12 22 
XR kβ2    17.969       9.2E-9 % 3   1.65E-12 5 
  2318.968 10        0.00180 %  4.2E-5

Dataset #3:

Authors: S. K. Basu, E.A. Mccutchan   Citation:Nuclear Data Sheets 165, 1 (2020)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
90
39
Y
 0    2-   64.05 h 5    β-   2278.5 16   
90
40
Zr
 

Beta-:

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




    24.23 45     92.2 16      1.4E-6 % 3   3.4E-10 7 
   184.59 61    517.8 16      0.0115 % 14   2.1E-5 3 
   932.40 73   2278.5 16     99.9885 % 14   0.9323 7 

Mean beta- energy: 932.3 keV 7, total beta- intensity: 100.0000 % 20, mean beta- dose: 0.9323 MeV/Bq-s 7

Electrons:

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



Auger L     2.02       0.01175 % 4   2.373E-7 8 
Auger K    13.4       0.00272 % 4   3.65E-7 5 
CE K  1742.70 20        0.0102 %  1.78E-4
CE L  1758.17 20        0.00126 %  2.2E-5
CE K  2168.24 3        1.7E-10 % 4   3.7E-12 8 
CE L  2183.71 3        1.9E-11 % 4   4.1E-13 9 
CE M  2185.81 3        3.2E-12 % 7   7.0E-14 15 
CE N  2186.19 3        4.6E-13 % 10   1.00E-14 22 

Gamma and X-ray radiation:

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



XR l     2.04       3.85E-4 % 10   7.85E-9 20 
XR kα2    15.691       0.00219 % 6   3.44E-7 10 
XR kα1    15.775       0.00420 % 12   6.62E-7 19 
XR kβ3    17.653       3.24E-4 % 9   5.73E-8 16 
XR kβ1    17.667       6.29E-4 % 17   1.11E-7 3 
XR kβ2    17.969       1.28E-4 % 4   2.30E-8 7 
  2186.242 25        1.4E-6 % 3   3.1E-8 7