Results:2 different decay possibilities were found


Dataset #1:

Authors: J. K. Tuli, E. Browne   Citation:Nuclear Data Sheets 157, 260 (2019)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
82
33
As
 131.63    (5-)   13.6 s 4    β-: 100  7489   
82
34
Se
 

Beta-:

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




  1530.0 20   3533 4      7.4 % 10   0.113 15 
  1835.7 20   4168 4     14.4 % 18   0.26 3 
  2106.2 20   4729 4     54 % 7   1.14 15 
  2272.3 20   5072 4     20 % 5   0.45 11 
  2666.7 20  ? 5887 4      5 % 5   0.13 13 
  2668.6 20  ? 5891 4      1.5 % 15   0.04 4 

Mean beta- energy: 2.1E+3 keV 3, total beta- intensity: 102 % 10, mean beta- dose: 2.1 MeV/Bq-s 4

Gamma and X-ray radiation:

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



   343.7 2       65 % 8   0.22 3 
   560.5 2       14.4 % 17   0.081 10 
   654.4 2       75 % 9   0.49 6 
   814.7 2       11.3 % 14   0.092 11 
   818.3 2       35 % 4   0.28 3 
  1075.6 2        9.0 % 13   0.097 14 
  1079.3 2       20 % 6   0.21 6 
  1157.6 2        3.5 % 5   0.040 6 
  1539.6 3        7.4 % 10   0.113 15 
  1730.0 2       26 % 4   0.44 6 
  1894.2 2       47 % 5   0.88 10 

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
   343.7560.5, 654.4, 814.7, 818.3, 1075.6, 1079.3, 1730.0, 1894.2
   560.5343.7, 654.4, 814.7, 818.3, 1075.6, 1079.3, 1157.6, 1730.0, 1894.2
   654.4343.7, 560.5, 814.7, 818.3, 1075.6, 1079.3, 1157.6, 1539.6, 1894.2
   814.7343.7, 560.5, 654.4, 1079.3, 1539.6
   818.3343.7, 560.5, 654.4, 1075.6, 1539.6, 1730.0
  1075.6343.7, 560.5, 654.4, 818.3, 1539.6
  1079.3343.7, 560.5, 654.4, 814.7, 1157.6, 1539.6
  1157.6560.5, 654.4, 1079.3
  1539.6654.4, 814.7, 818.3, 1075.6, 1079.3, 1730.0, 1894.2
  1730.0343.7, 560.5, 818.3, 1539.6
  1894.2343.7, 560.5, 654.4, 1539.6

Dataset #2:

Authors: J. K. Tuli, E. Browne   Citation:Nuclear Data Sheets 157, 260 (2019)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
82
33
As
 0.0    (2-)   19.1 s 5    β-   7489   
82
34
Se
 

Beta-:

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




  1392.6 20   3245 4     15 % 5   0.21 7 
  1668.7 20   3822 4      4.6 % 16   0.08 3 
  1986.7 20   4481 4      3.7 % 13   0.07 3 
  2171.1 20   4865 4      5.6 % 19   0.12 4 
  2600.7 20   5755 4      8 % 3   0.21 8 
  2604.8 20   5759 4     16 % 6   0.42 16 
  2757.9 20   6080 4      1.5 % 9   0.041 25 
  3126.3 20   6835 4     21 % 8   0.7 3 
  3441.6 20  ? 7489 4     25 % 25   0.9 9 

Mean beta- energy: 2.7E+3 keV 12, total beta- intensity: 1.0E+2 % 3, mean beta- dose: 2.7 MeV/Bq-s 14

Gamma and X-ray radiation:

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



   654.4 2       54 % 18   0.35 12 
   754.8 2       10 % 3   0.072 24 
  1075.6 2        5.9 % 21   0.063 23 
  1079.3 2        8 % 3   0.09 3 
  1730.0 2       17 % 6   0.29 11 
  1969.4 3        5.6 % 19   0.11 4 
  2353.3 2        3.7 % 13   0.09 3 
  2513.3 2        7.0 % 24   0.18 6 
  2835.0 3        8 % 3   0.23 8 
  3667.4 3        4.6 % 16   0.17 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
   654.4754.8, 1075.6, 1079.3, 1969.4, 2353.3, 2513.3, 2835.0
   754.8654.4, 2835.0
  1075.6654.4, 2513.3
  1079.3654.4
  1730.02513.3
  1969.4654.4
  2353.3654.4
  2513.3654.4, 1075.6, 1730.0
  2835.0654.4, 754.8