Results:2 different decay possibilities were found


Dataset #1:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 196, 342 (2024)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
202
81
Tl
 950.1910    7+   591 µs 3    IT       
202
81
Tl
 

Electrons:

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



Auger L     7.78       6.78 % 17   5.28E-4 13 
Auger K    55.2       0.28 % 3   1.53E-4 17 
CE K   374.19 7        5.48 % 8   0.0205 3 
CE K   404.94 7        2.04 % 3   0.00824 11 
CE L   444.37 7        3.99 % 5   0.01772 24 
CE M   456.02 7        1.039 % 14   0.00474 7 
CE N   458.87 7        0.262 % 4   0.001203 16 
CE O   459.65 7        0.0470 % 6   2.16E-4 3 
CE L   475.12 7        0.625 % 9   0.00297 4 
CE M   486.77 7        0.1545 % 21   7.52E-4 10 
CE N   489.62 7        0.0389 % 6   1.90E-4 3 
CE O   490.40 7        0.00712 % 10   3.49E-5 5 

Gamma and X-ray radiation:

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



XR l    10.3       3.93 % 16   4.05E-4 17 
XR kα2    70.832       2.07 % 5   0.00147 4 
XR kα1    72.873       3.48 % 8   0.00253 6 
XR kβ3    82.115       0.420 % 10   3.45E-4 8 
XR kβ1    82.574       0.804 % 19   6.64E-4 16 
XR kβ2    84.865       0.293 % 7   2.49E-4 6 
   459.72 7       89.19 % 14   0.4100 6 
   490.47 7       97.13 % 4   0.47639 21 

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
   459.72490.47
   490.47459.72

Dataset #2:

Author: F.G. Kondev   Citation:Nuclear Data Sheets 196, 342 (2024)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
202
81
Tl
 0    2-   12.4706 d 55    ε: 100  1364.9 18   
202
80
Hg
 

Electrons:

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



Auger L     7.6      53.4 % 13   0.00406 10 
Auger K    53.8       3.1 % 3   0.00167 18 
CE K   356.458 10        2.37 %  0.00845
CE L   424.721 10        0.779 %  0.00331
CE M   435.998 10        0.193 %  8.41E-4
CE K   437.03 7        0.0265 % 23   1.16E-4 10 
CE N   438.760 10        0.0481 %  2.11E-4
CE O   439.503 10        0.00850 %  3.74E-5
CE L   505.29 7        0.0049 % 4   2.47E-5 18 
CE M   516.57 7        0.00115 % 8   6.0E-6 4 
CE N   519.33 7        2.89E-4 % 20   1.50E-6 11 
CE O   520.07 7        5.4E-5 % 4   2.81E-7 20 
CE K   877.00 10        3.56E-4 % 21   3.12E-6 19 
CE L   945.26 10        6.8E-5 % 4   6.4E-7 4 
CE M   956.54 10        1.60E-5 % 10   1.53E-7 9 
CE N   959.30 10        4.01E-6 % 24   3.84E-8 23 
CE O   960.04 10        7.4E-7 % 4   7.1E-9 4 

Gamma and X-ray radiation:

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



XR l     9.99      29.4 % 12   0.00294 12 
XR kα2    68.894      22.4 % 6   0.0154 4 
XR kα1    70.818      37.7 % 9   0.0267 6 
XR kβ3    79.824       4.55 % 11   0.00364 9 
XR kβ1    80.225       8.72 % 22   0.00699 17 
XR kβ2    82.473       3.15 % 8   0.00260 6 
   439.56 1       91.5 %  0.402
   520.13 7        0.582 % 33   0.00303 17 
   960.1 1        0.068 % 4   6.5E-4 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
   439.56520.13 (2.73E-11)
   520.13439.56 (2.73E-11)