Results:3 different decay possibilities were found


Dataset #1:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 201, 346 (2025)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
210
83
Bi
 0.0    1-   5.012 d 5    α: 13.2E-5 10  5036.5   
206
81
Tl
 

Alphas:

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



  4650 4       7.9E-5 % 10   3.7E-6 5 
  4687 4       5.3E-5 % 7   2.5E-6 3 

Dataset #2:

Author: M. Shamsuzzoha Basunia   Citation:Nuclear Data Sheets 121, 561 (2014)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
210
83
Bi
 0.0    1-   5.012 d 5    β-: 100  1162.2   
210
84
Po
 

Beta-:

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




   389.0 4   1162.2 8    100 %  0.3890

Mean beta- energy: 389 keV , total beta- intensity: 100 % , mean beta- dose: 0.389 MeV/Bq-s

Dataset #3:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 201, 346 (2025)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
210
83
Bi
 271.3111    9-   3.04×10+6 y 6    α: 100  5036.5   
206
81
Tl
 

Alphas:

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



  4100 8       3.7E-4 %  1.517E-5
  4230 8       4E-4 %  1.692E-5
  4268 8       0.006 %  2.561E-4
  4420 1       0.200 % 10   0.0088 4 
  4568 2       3.750 % 10   0.1713 5 
  4582 2       1.350 % 10   0.0619 5 
  4909 1      40.0 % 20   1.96 10 
  4946 1      54.8 % 20   2.71 10 
  5206.5 8       5E-5 % 5   3E-6 3 

Electrons:

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



Auger L     7.78      10.0 % 5   7.7E-4 4 
Auger K    55.2       0.51 % 6   2.8E-4 3 
CE K   180.1 5        4.46 %  0.00802
CE K   219.1 5        8.7 % 8   0.0191 18 
CE K   244.1 5        0.19 % 4   4.7E-4 10 
CE L   250.3 5        2.93 %  0.00733
CE K   258.8 5        0.18 % 3   4.8E-4 7 
CE M   261.9 5        0.751 %  0.00197
CE N   264.8 5        0.188 %  4.98E-4
CE O   265.5 5        0.0333 %  8.85E-5
CE K   283.4 5        0.114 % 13   3.2E-4 4 
CE L   289.3 5        1.47 % 14   0.0043 4 
CE K   298.4696 6        9.40E-4 %  2.81E-6
CE M   300.9 5        0.34 % 3   0.00103 10 
CE N   303.8 5        0.087 % 8   2.63E-4 25 
CE O   304.5 5        0.0168 % 16   5.1E-5 5 
CE L   314.3 5        0.033 % 7   1.03E-4 22 
CE M   325.9 5        0.0076 % 17   2.5E-5 5 
CE N   328.8 5        0.0019 % 4   6.3E-6 14 
CE L   329.0 5        0.031 % 4   1.02E-4 15 
CE O   329.5 5        3.7E-4 % 8   1.2E-6 3 
CE M   340.6 5        0.0072 % 10   2.5E-5 4 
CE N   343.5 5        0.0018 % 3   6.2E-6 9 
CE O   344.2 5        3.5E-4 % 5   1.22E-6 18 
CE L   353.6 5        0.0191 % 22   6.8E-5 8 
CE M   365.2 5        0.0045 % 5   1.63E-5 19 
CE N   368.1 5        0.00113 % 13   4.1E-6 5 
CE L   368.6533 4        1.579E-4 %  5.82E-7
CE O   368.8 5        2.19E-4 % 25   8.1E-7 9 
CE M   380.2959 4        3.68E-5 %  1.398E-7
CE N   383.1545 5        9.28E-6 %  3.56E-8
CE O   383.932       1.801E-6 %  6.92E-9
CE K   450.0 5        0.0181 %  8.13E-5
CE L   520.2 5        0.00301 %  1.563E-5
CE M   531.8 5        7.00E-4 %  3.72E-6
CE N   534.7 5        1.765E-4 %  9.44E-7
CE O   535.4 5        3.43E-5 %  1.84E-7
CE K   549.4696 6        1.273E-4 %  6.99E-7
CE K   564.1 5        0.124 % 25   7.0E-4 14 
CE K   600.4696 6        6.50E-5 %  3.90E-7
CE L   619.6533 4        3.13E-5 %  1.94E-7
CE M   631.2959 4        7.62E-6 %  4.81E-8
CE N   634.1545 5        1.92E-6 %  1.216E-8
CE L   634.3 5        0.020 % 4   1.3E-4 3 
CE O   634.932       3.57E-7 %  2.26E-9
CE M   645.9 5        0.0048 % 10   3.1E-5 6 
CE K   646.81 7        1.256E-5 %  8.13E-8
CE N   648.8 5        0.00120 % 24   7.8E-6 16 
CE O   649.5 5        2.3E-4 % 5   1.5E-6 3 
CE L   670.6533 4        1.516E-5 %  1.017E-7
CE M   682.2959 4        3.67E-6 %  2.50E-8
CE N   685.1545 5        9.23E-7 %  6.32E-9
CE O   685.932       1.724E-7 %  1.182E-9
CE L   716.99 7        2.07E-6 %  1.482E-8
CE M   728.64 7        4.81E-7 %  3.50E-9
CE N   731.49 7        1.215E-7 %  8.89E-10
CE O   732.27 7        2.36E-8 %  1.727E-10
CE K  1031.37 10        3.73E-6 %  3.85E-8
CE L  1101.55 10        6.06E-7 %  6.68E-9
CE M  1113.20 10        1.409E-7 %  1.568E-9
CE N  1116.05 10        3.55E-8 %  3.96E-10
CE O  1116.83 10        6.91E-9 %  7.72E-11

Gamma and X-ray radiation:

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



XR l    10.3       5.8 % 3   5.9E-4 4 
XR kα2    70.832       3.81 % 24   0.00270 17 
XR kα1    72.873       6.4 % 4   0.0047 3 
XR kβ3    82.115       0.77 % 5   6.3E-4 4 
XR kβ1    82.574       1.48 % 9   0.00122 8 
XR kβ2    84.865       0.54 % 3   4.6E-4 3 
   265.6 5       52 %  0.138
   304.6 5       28.3 % 26   0.086 8 
   329.6 5        0.78 % 17   0.0026 6 
   344.3 5        0.83 % 12   0.0029 4 
   368.9 5        0.62 % 7   0.0023 3 
   384       0.0057 %  2.19E-5
   535.5 5        0.265 %  0.00142
   635       0.0104 %  6.6E-5
   649.6 5        3.0 % 6   0.019 4 
   686       0.0062 %  4.3E-5
   732.34 7        0.000416 %  3.05E-6
  1116.9 1        0.000364 %  4.1E-6

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
   265.6368.9 (2.29E-9), 384 (2.29E-9), 535.5 (2.29E-9), 686 (2.29E-9), 732.34 (2.29E-9)
   304.6329.6 (4.20E-12), 344.3 (4.20E-12)
   329.6304.6 (4.20E-12)
   344.3304.6 (4.20E-12)
   368.9265.6 (2.29E-9)
   384265.6 (2.29E-9)
   535.5265.6 (2.29E-9)
   686265.6 (2.29E-9)
   732.34265.6 (2.29E-9)