Results:4 different decay possibilities were found


Dataset #1:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 114, 1293 (2013)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
91
41
Nb
 2034.4220    (17/2-)   3.76 µs 12    IT: 100      
91
41
Nb
 

Electrons:

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



Auger L     2.15      89 % 7   0.00191 14 
Auger K    14.0      16.4 % 16   0.00229 23 
CE K    31.11 20       63 % 6   0.0195 20 
CE L    47.40 20       22.9 % 24   0.0109 11 
CE M    49.63 20        4.1 % 4   0.00205 21 
CE N    50.04 20        0.53 % 6   2.7E-4 3 
CE K   175.1 3        3.0 % 3   0.0053 5 
CE L   191.4 3        0.42 % 4   8.0E-4 8 
CE M   193.6 3        0.074 % 7   1.44E-4 14 
CE N   194.0 3        0.0104 % 10   2.02E-5 20 
CE K  1063.6 5        5.8E-4 % 6   6.1E-6 6 
CE L  1079.9 5        6.4E-5 % 7   6.9E-7 7 
CE M  1082.1 5        1.13E-5 % 12   1.23E-7 13 
CE N  1082.5 5        1.66E-6 % 17   1.79E-8 18 
CE K  1771.6 5        0.0039 % 7   6.8E-5 12 
CE L  1787.9 5        4.2E-4 % 7   7.5E-6 13 
CE M  1790.1 5        7.3E-5 % 15   1.3E-6 3 
CE N  1790.5 5        1.09E-5 % 19   2.0E-7 3 
CE K  1965.6 5        0.0192 % 6   3.77E-4 11 
CE L  1981.9 5        0.00212 % 6   4.19E-5 12 
CE M  1984.1 5        3.72E-4 % 11   7.39E-6 21 
CE N  1984.5 5        5.47E-5 % 15   1.09E-6 3 

Gamma and X-ray radiation:

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



XR l     2.17       3.2 % 3   6.9E-5 6 
XR kα2    16.521      14.4 % 15   0.00238 24 
XR kα1    16.615      28 % 3   0.0046 5 
XR kβ3    18.607       2.16 % 22   4.0E-4 4 
XR kβ1    18.623       4.2 % 4   7.8E-4 8 
XR kβ2    18.952       0.95 % 10   1.80E-4 18 
    50.1 2        6.5 % 7   0.0033 3 
   194.1 3       34 % 3   0.065 6 
   603.5 3        1.30 % 13   0.0079 8 
  1082.6 5        1.09 % 11   0.0117 12 
  1790.6 5       36.3 % 12   0.651 22 
  1984.6 5       62.6 % 15   1.24 3 

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
    50.1104.62 (5.25E+6), 194.1 (1.00E-8), 603.5 (1.00E-8), 1082.6 (1.00E-8), 1790.6 (1.00E-8),
1984.6 (1.00E-8)
   104.6250.1 (5.25E+6), 194.1 (5.25E+6), 603.5 (5.25E+6), 1082.6 (5.25E+6)
   194.150.1 (1.00E-8), 104.62 (5.25E+6), 603.5, 1082.6, 1790.6
   603.550.1 (1.00E-8), 104.62 (5.25E+6), 194.1, 1082.6
  1082.650.1 (1.00E-8), 104.62 (5.25E+6), 194.1, 603.5
  1790.650.1 (1.00E-8), 194.1
  1984.650.1 (1.00E-8)

Dataset #2:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 114, 1293 (2013)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
91
41
Nb
 104.605    1/2-   60.86 d 22    IT: 96.6 5      
91
41
Nb
 

Electrons:

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



Auger L     2.15      90.3 % 3   0.001941 6 
Auger K    14.0      16.4 % 3   0.00229 4 
CE K    85.63 5       65.8 %  0.0564
CE L   101.92 5       24.7 %  0.0252
CE M   104.15 5        4.75 %  0.00495
CE N   104.56 5        0.650 %  6.79E-4

Gamma and X-ray radiation:

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



XR l     2.17       3.24 % 8   7.04E-5 18 
XR kα2    16.521      14.4 % 4   0.00238 7 
XR kα1    16.615      27.5 % 8   0.00457 13 
XR kβ3    18.607       2.16 % 6   4.02E-4 11 
XR kβ1    18.623       4.18 % 12   7.78E-4 22 
XR kβ2    18.952       0.95 % 3   1.80E-4 5 
   104.62 5        0.574 %  6.00E-4

Dataset #3:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 114, 1293 (2013)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
91
41
Nb
 104.605    1/2-   60.86 d 22    ε: 3.4 5  1258   
91
40
Zr
 

Beta+:

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




   169.8 14    341 3       0.0013 % 3   2.2E-6 5 

Mean beta+ energy: 1.7E+2 keV 6, total beta+ intensity: 0.0013 % 3, mean beta+ dose: 2.2E-6 MeV/Bq-s 9

Electrons:

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



Auger L     2.02       3.4 % 3   6.9E-5 6 
Auger K    13.4       0.78 % 7   1.04E-4 10 
CE K  1186.67 8        7.9E-4 % 12   9.4E-6 14 
CE L  1202.14 8        8.7E-5 % 13   1.05E-6 16 
CE M  1204.24 8        1.51E-5 % 23   1.8E-7 3 
CE N  1204.62 8        2.1E-6 % 3   2.6E-8 4 

Gamma and X-ray radiation:

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



XR l     2.04       0.111 % 10   2.27E-6 19 
XR kα2    15.691       0.63 % 6   9.8E-5 9 
XR kα1    15.775       1.20 % 12   1.89E-4 18 
XR kβ3    17.653       0.093 % 9   1.64E-5 16 
XR kβ1    17.667       0.180 % 17   3.2E-5 3 
XR kβ2    17.969       0.037 % 4   6.6E-6 6 
Annihil.   511.0       0.0026 % 6  
  1204.67 8        2.0 % 3   0.024 4 

Dataset #4:

Author: Coral M. Baglin   Citation:Nuclear Data Sheets 114, 1293 (2013)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
91
41
Nb
 0.0    9/2+   6.8×10+2 y 13    ε: 100  1258   
91
40
Zr
 

Beta+:

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




   109.7 13    236 3       0.170 % 10   1.86E-4 11 

Mean beta+ energy: 110 keV 9, total beta+ intensity: 0.170 % 10, mean beta+ dose: 1.86E-4 MeV/Bq-s 19

Electrons:

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



Auger L     2.02      99.6 % 3   0.002012 7 
Auger K    13.4      23.1 % 3   0.00310 5 

Gamma and X-ray radiation:

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



XR l     2.04       3.26 % 8   6.65E-5 17 
XR kα2    15.691      18.6 % 5   0.00292 8 
XR kα1    15.775      35.7 % 10   0.00562 16 
XR kβ3    17.653       2.76 % 8   4.87E-4 14 
XR kβ1    17.667       5.35 % 15   9.4E-4 3 
XR kβ2    17.969       1.09 % 3   1.95E-4 6 
Annihil.   511.0       0.340 % 20