Results:2 different decay possibilities were found

Dataset #1:

Author: Zoltan Elekes and Janos Timar   Citation:Nuclear Data Sheets 129, 191 (2015)

Parent
Nucleus		Parent
E(level)		Parent
Jπ		Parent
T1/2		Decay Mode GS-GS Q-value
(keV) 		Daughter
Nucleus		Decay
Scheme 		ENSDF
file 
128
51		Sb
  0.0+X    5+   10.4 m 18    IT: 3.6 10 %       
128
51		Sb
 

Gamma and X-ray radiation:

Energy
(keV)		Intensity
(%)		Dose
( MeV/Bq-s )
   <20.0 S      3.6 %  7.2E-4

Dataset #2:

Author: Zoltan Elekes and Janos Timar   Citation:Nuclear Data Sheets 129, 191 (2015)

Parent
Nucleus		Parent
E(level)		Parent
Jπ		Parent
T1/2		Decay Mode GS-GS Q-value
(keV) 		Daughter
Nucleus		Decay
Scheme 		ENSDF
file 
128
51		Sb
  0.0    8-   9.05 h 4    β-   4363 19   
128
52		Te
 

Beta-:

Energy
(keV)		End-point energy
(keV)		Intensity
(%)		Dose
( MeV/Bq-s )
   200.5 71    629 19      6.1 % 15   0.012 3 
   252.6 74    766 19      4.3 % 15   0.011 4 
   256.3 75    775 19      2.0 % 11   0.005 3 
   283.2 76    844 19      4.5 % 7   0.0127 20 
   294.9 76    873 19      5.5 % 11   0.016 3 
   319.4 77    934 19      4.0 % 5   0.0128 16 
   324.5 78    946 19     15.3 % 19   0.050 6 
   420.8 81   1180 19      4.2 % 6   0.018 3 
   434.4 81   1212 19     13.0 % 24   0.056 10 
   439.0 81   1223 19      1.20 % 21   0.0053 9 
   560.3 84   1504 19      3.5 % 4   0.0196 23 
   578.5 84   1546 19      1.5 % 11   0.009 6 
   602.7 84   1601 19      7 % 3   0.042 18 
   614.0 84   1626 19      1.3 % 4   0.0080 25 
   634.9 85   1674 19      3.5 % 5   0.022 3 
   680.0 85   1775 19      1.5 % 3   0.0102 20 
   792.4 86   2025 19     19 % 4   0.15 3 

Mean beta- energy: 4.7E+2 keV 5, total beta- intensity: 97 % 7, mean beta- dose: 0.46 MeV/Bq-s 6

Electrons:

Energy
(keV)		Intensity
(%)		Dose
( MeV/Bq-s )
Auger L     3.19       2.46 % 11   7.9E-5 3 
Auger K    22.7       0.316 % 19   7.2E-5 4 
CE K   282.29 10        1.70 % 12   0.0048 3 
CE L   309.16 10        0.270 % 19   8.3E-4 6 
CE M   313.09 10        0.055 % 4   1.71E-4 12 
CE N   313.93 10        0.0106 % 8   3.32E-5 24 
CE O   314.09 10        0.00105 % 8   3.30E-6 24 
CE K   494.69 10        0.092 % 6   4.6E-4 3 
CE L   521.56 10        0.0112 % 8   5.8E-5 4 
CE M   525.49 10        0.00221 % 15   1.16E-5 8 
CE N   526.33 10        4.4E-4 % 3   2.30E-6 16 
CE O   526.49 10        4.7E-5 % 3   2.49E-7 17 
CE K   596.89 10        0.130 % 19   7.8E-4 11 
CE K   604.39 10        0.048 % 4   2.91E-4 22 
CE K   622.39 20        0.065 % 10   4.0E-4 6 
CE L   623.76 10        0.0167 % 18   1.04E-4 12 
CE M   627.69 10        0.0033 % 4   2.10E-5 23 
CE N   628.53 10        6.6E-4 % 7   4.1E-6 4 
CE O   628.69 10        7.1E-5 % 9   4.4E-7 5 
CE L   631.26 10        0.0058 % 4   3.7E-5 3 
CE M   635.19 10        0.00115 % 9   7.3E-6 6 
CE N   636.03 10        2.28E-4 % 17   1.45E-6 11 
CE O   636.19 10        2.47E-5 % 19   1.57E-7 12 
CE L   649.26 20        0.0083 % 9   5.4E-5 6 
CE M   653.19 20        0.00165 % 17   1.08E-5 11 
CE N   654.03 20        3.3E-4 % 4   2.13E-6 23 
CE O   654.19 20        3.5E-5 % 4   2.3E-7 3 
CE K   711.49 10        0.248 % 18   0.00176 13 
CE K   722.19 10        0.239 % 17   0.00173 13 
CE L   738.36 10        0.0322 % 23   2.38E-4 17 
CE M   742.29 10        0.0064 % 5   4.8E-5 3 
CE N   743.13 10        0.00127 % 9   9.4E-6 7 
CE O   743.29 10        1.35E-4 % 10   1.00E-6 7 
CE L   749.06 10        0.0311 % 23   2.33E-4 17 
CE M   752.99 10        0.0062 % 4   4.7E-5 3 
CE N   753.83 10        0.00122 % 9   9.2E-6 7 
CE O   753.99 10        1.30E-4 % 9   9.8E-7 7 
CE K   781.79 20        0.0104 % 17   8.1E-5 13 
CE L   808.66 20        0.00124 % 20   1.01E-5 16 
CE M   812.59 20        2.5E-4 % 4   2.0E-6 3 
CE N   813.43 20        4.9E-5 % 8   4.0E-7 6 
CE O   813.59 20        5.3E-6 % 9   4.3E-8 7 

Gamma and X-ray radiation:

Energy
(keV)		Intensity
(%)		Dose
( MeV/Bq-s )
XR l     3.77       0.232 % 14   8.8E-6 5 
XR kα2    27.202       0.63 % 3   1.72E-4 10 
XR kα1    27.472       1.17 % 6   3.21E-4 18 
XR kβ3    30.944       0.108 % 6   3.33E-5 18 
XR kβ1    30.995       0.208 % 11   6.4E-5 4 
XR kβ2    31.704       0.060 % 3   1.90E-5 10 
   102.8 3        0.40 % 10   4.1E-4 10 
   152.6 3        0.50 % 10   7.6E-4 16 
   204.4 10        1.00 % 21   0.0020 4 
   214.8 2        1.00 % 21   0.0021 4 
   227.3 2        1.5 % 3   0.0034 7 
   249.7 2  ?      0.60 % 10   0.0015 3 
   314.1 1       61 % 4   0.192 13 
   317.7 2        3.0 % 10   0.010 3 
   322.3 2        3.0 % 10   0.010 3 
   357.0 3        1.5 % 3   0.0054 11 
   366.1 3        1.5 % 3   0.0055 11 
   404.3 3        1.00 % 21   0.0040 8 
   445.7 3        1.5 % 3   0.0067 14 
   454.5 3        1.5 % 3   0.0068 14 
   459.5 3        1.5 % 3   0.0069 14 
   526.5 1       45 % 3   0.237 16 
   582.9 3        1.00 % 21   0.0058 12 
   594.3 3        1.00 % 21   0.0059 12 
   603.0 3        1.7 % 3   0.0103 19 
   628.7 1       31 % 3   0.195 16 
   636.2 1       36 % 3   0.229 17 
   654.2 2       17.0 % 13   0.111 9 
   667.1 3        2.5 % 3   0.0167 22 
   683.9 3        3.0 % 10   0.021 7 
   692.9 3        2.0 % 10   0.014 7 
   727.6 3        4.0 % 10   0.029 7 
   743.3 1      100 % 7   0.74 5 
   754.0 1      100 % 7   0.75 5 
   773.7 3        1.5 % 3   0.0116 24 
   802.7 3        1.20 % 21   0.0096 17 
   813.6 2       13.0 % 21   0.106 17 
   835.8 4        1.0 % 10   0.008 8 
   845.8 4        2.5 % 3   0.021 3 
   860.8 4        0.40 % 10   0.0034 9 
   878.0 4        3.5 % 4   0.031 4 
   908.8 4        1.0 % 10   0.009 9 
   972.3 4        1.0 % 10   0.010 10 
  1047.5 4        3.5 % 4   0.037 5 
  1078.6 4        2.0 % 10   0.022 11 
  1112.7 4        2.0 % 10   0.022 11 
  1158.2 4        1.5 % 3   0.017 4 
  1181.6 4        4.5 % 5   0.053 6 
  1250.5 4        1.0 % 10   0.013 13 
  1259.5 4        1.0 % 10   0.013 13 
  1339.8 4        1.0 % 10   0.013 13 
  1685.7 5        0.50 % 10   0.0084 17 
  1707.9 5        0.30 % 10   0.0051 17 
  1785.5 5        0.40 % 10   0.0071 18 

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
   102.8204.4 (2.40E-9), 214.8, 314.1 (4.80E-10), 322.3, 357.0, 526.5 (2.40E-9), 594.3, 628.7,
636.2, 654.2, 743.3 (4.83E-10), 754.0 (4.80E-10), 908.8, 1078.6
   152.6204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 404.3, 526.5 (2.40E-9), 636.2 (2.40E-9),
692.9, 743.3 (2.88E-9), 754.0 (2.88E-9)
   204.4102.8 (2.40E-9), 152.6 (2.40E-9), 214.8 (2.40E-9), 314.1 (4.80E-10), 317.7 (2.40E-9),
322.3, 404.3 (2.40E-9), 445.7 (2.40E-9), 459.5 (2.40E-9), 582.9 (2.40E-9),
636.2, 692.9 (2.40E-9), 743.3 (4.83E-10), 754.0 (4.80E-10), 802.7 (2.40E-9),
813.6 (2.40E-9), 845.8 (2.40E-9), 1078.6 (2.40E-9), 1181.6 (2.40E-9), 1250.5 (2.40E-9),
1259.5 (2.40E-9)
   214.8102.8, 204.4 (2.40E-9), 314.1 (4.80E-10), 322.3, 357.0, 526.5 (2.40E-9), 594.3, 628.7,
636.2, 654.2, 743.3 (4.83E-10), 754.0 (4.80E-10), 908.8, 1078.6, 1181.6,
1707.9
   227.3314.1 (4.80E-10), 445.7, 582.9, 743.3 (4.83E-10), 754.0 (4.80E-10), 1112.7
   249.7314.1 (4.80E-10), 594.3, 743.3 (4.83E-10), 754.0 (4.80E-10), 773.7, 908.8
   314.1102.8 (4.80E-10), 152.6 (2.88E-9), 204.4 (4.80E-10), 214.8 (4.80E-10), 227.3 (4.80E-10),
249.7 (4.80E-10), 317.7 (4.80E-10), 322.3 (4.80E-10), 357.0 (4.80E-10),
366.1 (4.80E-10), 404.3 (2.88E-9), 445.7 (4.80E-10), 454.5 (4.80E-10), 459.5 (2.88E-9),
526.5 (4.80E-10), 582.9 (4.80E-10), 594.3 (4.80E-10), 603.0 (4.80E-10),
628.7 (4.80E-10), 654.2 (4.80E-10), 667.1 (4.80E-10), 683.9 (4.80E-10),
692.9 (2.88E-9), 727.6 (4.80E-10), 743.3 (3.29E-12), 754.0, 773.7 (4.80E-10),
802.7 (2.88E-9), 813.6 (2.88E-9), 835.8 (4.80E-10), 845.8 (2.88E-9),
860.8 (4.80E-10), 878.0 (4.80E-10), 972.3 (4.80E-10), 1047.5 (4.80E-10),
1078.6 (2.88E-9), 1112.7 (4.80E-10), 1181.6 (2.88E-9), 1250.5 (2.88E-9), 1259.5 (2.88E-9),
1339.8 (4.80E-10), 1707.9 (4.80E-10), 1785.5 (4.80E-10)
   317.7204.4 (2.40E-9), 314.1 (4.80E-10), 322.3, 357.0, 526.5 (2.40E-9), 594.3, 628.7, 636.2,
654.2, 743.3 (4.83E-10), 754.0 (4.80E-10), 908.8, 1078.6
   322.3102.8, 152.6 (2.40E-9), 204.4, 214.8, 314.1 (4.80E-10), 317.7, 366.1, 404.3 (2.40E-9),
445.7 (2.40E-9), 454.5, 459.5 (2.40E-9), 582.9 (2.40E-9), 603.0, 628.7,
654.2, 667.1, 683.9, 692.9 (2.40E-9), 727.6, 743.3 (4.83E-10), 754.0 (4.80E-10),
802.7 (2.40E-9), 813.6 (2.40E-9), 835.8, 845.8 (2.40E-9), 860.8, 972.3,
1078.6 (2.40E-9), 1181.6 (2.40E-9), 1250.5 (2.40E-9), 1259.5 (2.40E-9)
   357.0102.8, 214.8, 314.1 (4.80E-10), 317.7, 594.3, 654.2, 667.1, 727.6, 743.3 (4.83E-10),
754.0 (4.80E-10), 835.8, 908.8, 972.3
   366.1314.1 (4.80E-10), 322.3, 404.3, 636.2, 683.9, 743.3 (4.83E-10), 754.0 (4.80E-10)
   404.3152.6, 204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 366.1, 526.5 (2.40E-9),
636.2 (2.40E-9), 683.9, 692.9, 743.3 (2.88E-9), 754.0 (2.88E-9), 845.8, 1685.7
   445.7204.4 (2.40E-9), 227.3, 314.1 (4.80E-10), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (4.83E-10), 754.0 (4.80E-10), 813.6, 1112.7, 1339.8
   454.5314.1 (4.80E-10), 322.3, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10)
   459.5204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
692.9, 743.3 (2.88E-9), 754.0 (2.88E-9)
   526.5102.8 (2.40E-9), 152.6 (2.40E-9), 214.8 (2.40E-9), 314.1 (4.80E-10), 317.7 (2.40E-9),
404.3 (2.40E-9), 445.7 (2.40E-9), 459.5 (2.40E-9), 582.9 (2.40E-9), 692.9 (2.40E-9),
743.3 (4.83E-10), 754.0 (4.80E-10), 802.7 (2.40E-9), 813.6 (2.40E-9),
845.8 (2.40E-9), 1078.6 (2.40E-9), 1181.6 (2.40E-9), 1250.5 (2.40E-9),
1259.5 (2.40E-9)
   582.9204.4 (2.40E-9), 227.3, 314.1 (4.80E-10), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (4.83E-10), 754.0 (4.80E-10), 813.6, 1112.7, 1339.8
   594.3102.8, 214.8, 249.7, 314.1 (4.80E-10), 317.7, 357.0, 654.2, 667.1, 727.6, 743.3 (4.83E-10),
754.0 (4.80E-10), 773.7, 835.8, 972.3
   603.0314.1 (4.80E-10), 322.3, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10), 860.8
   628.7102.8, 214.8, 314.1 (4.80E-10), 317.7, 322.3, 636.2, 654.2, 667.1, 727.6, 743.3 (4.83E-10),
754.0 (4.80E-10), 835.8, 972.3
   636.2102.8, 152.6 (2.40E-9), 204.4, 214.8, 317.7, 366.1, 404.3 (2.40E-9), 445.7 (2.40E-9),
454.5, 459.5 (2.40E-9), 582.9 (2.40E-9), 603.0, 628.7, 654.2, 667.1, 683.9,
692.9 (2.40E-9), 727.6, 743.3 (3.29E-12), 754.0, 802.7 (2.40E-9), 813.6 (2.40E-9),
835.8, 845.8 (2.40E-9), 860.8, 972.3, 1078.6 (2.40E-9), 1181.6 (2.40E-9),
1250.5 (2.40E-9), 1259.5 (2.40E-9)
   654.2102.8, 214.8, 314.1 (4.80E-10), 317.7, 322.3, 357.0, 594.3, 628.7, 636.2, 743.3 (4.83E-10),
754.0 (4.80E-10), 908.8
   667.1314.1 (4.80E-10), 322.3, 357.0, 594.3, 628.7, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10),
908.8
   683.9314.1 (4.80E-10), 322.3, 366.1, 404.3, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10)
   692.9152.6, 204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 404.3, 459.5, 526.5 (2.40E-9),
636.2 (2.40E-9), 743.3 (2.88E-9), 754.0 (2.88E-9)
   727.6314.1 (4.80E-10), 322.3, 357.0, 594.3, 628.7, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10),
908.8
   743.3102.8 (4.83E-10), 152.6 (2.88E-9), 204.4 (4.83E-10), 214.8 (4.83E-10), 227.3 (4.83E-10),
249.7 (4.83E-10), 314.1 (3.29E-12), 317.7 (4.83E-10), 322.3 (4.83E-10),
357.0 (4.83E-10), 366.1 (4.83E-10), 404.3 (2.88E-9), 445.7 (4.83E-10), 454.5 (4.83E-10),
459.5 (2.88E-9), 526.5 (4.83E-10), 582.9 (4.83E-10), 594.3 (4.83E-10),
603.0 (4.83E-10), 628.7 (4.83E-10), 636.2 (3.29E-12), 654.2 (4.83E-10),
667.1 (4.83E-10), 683.9 (4.83E-10), 692.9 (2.88E-9), 727.6 (4.83E-10),
754.0 (3.29E-12), 773.7 (4.83E-10), 802.7 (2.88E-9), 813.6 (2.88E-9), 835.8 (4.83E-10),
845.8 (2.88E-9), 860.8 (4.83E-10), 878.0 (4.83E-10), 908.8 (3.29E-12),
972.3 (4.83E-10), 1047.5 (4.83E-10), 1078.6 (2.88E-9), 1112.7 (4.83E-10),
1158.2 (3.29E-12), 1181.6 (2.88E-9), 1250.5 (2.88E-9), 1259.5 (2.88E-9),
1339.8 (4.83E-10), 1685.7 (3.29E-12), 1707.9 (4.83E-10), 1785.5 (4.83E-10)
   754.0102.8 (4.80E-10), 152.6 (2.88E-9), 204.4 (4.80E-10), 214.8 (4.80E-10), 227.3 (4.80E-10),
249.7 (4.80E-10), 314.1, 317.7 (4.80E-10), 322.3 (4.80E-10), 357.0 (4.80E-10),
366.1 (4.80E-10), 404.3 (2.88E-9), 445.7 (4.80E-10), 454.5 (4.80E-10),
459.5 (2.88E-9), 526.5 (4.80E-10), 582.9 (4.80E-10), 594.3 (4.80E-10),
603.0 (4.80E-10), 628.7 (4.80E-10), 636.2, 654.2 (4.80E-10), 667.1 (4.80E-10),
683.9 (4.80E-10), 692.9 (2.88E-9), 727.6 (4.80E-10), 743.3 (3.29E-12), 773.7 (4.80E-10),
802.7 (2.88E-9), 813.6 (2.88E-9), 835.8 (4.80E-10), 845.8 (2.88E-9),
860.8 (4.80E-10), 878.0 (4.80E-10), 908.8, 972.3 (4.80E-10), 1047.5 (4.80E-10),
1078.6 (2.88E-9), 1112.7 (4.80E-10), 1158.2, 1181.6 (2.88E-9),
1250.5 (2.88E-9), 1259.5 (2.88E-9), 1339.8 (4.80E-10), 1685.7, 1707.9 (4.80E-10),
1785.5 (4.80E-10)
   773.7249.7, 314.1 (4.80E-10), 594.3, 743.3 (4.83E-10), 754.0 (4.80E-10), 908.8, 1158.2
   802.7204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (2.88E-9), 754.0 (2.88E-9)
   813.6204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 445.7, 526.5 (2.40E-9), 582.9,
636.2 (2.40E-9), 743.3 (2.88E-9), 754.0 (2.88E-9)
   835.8314.1 (4.80E-10), 322.3, 357.0, 594.3, 628.7, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10),
908.8
   845.8204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 404.3, 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (2.88E-9), 754.0 (2.88E-9)
   860.8314.1 (4.80E-10), 322.3, 603.0, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10)
   878.0314.1 (4.80E-10), 743.3 (4.83E-10), 754.0 (4.80E-10)
   908.8102.8, 214.8, 249.7, 317.7, 357.0, 654.2, 667.1, 727.6, 743.3 (3.29E-12), 754.0,
773.7, 835.8, 972.3
   972.3314.1 (4.80E-10), 322.3, 357.0, 594.3, 628.7, 636.2, 743.3 (4.83E-10), 754.0 (4.80E-10),
908.8
  1047.5314.1 (4.80E-10), 743.3 (4.83E-10), 754.0 (4.80E-10)
  1078.6102.8, 204.4 (2.40E-9), 214.8, 314.1 (2.88E-9), 317.7, 322.3 (2.40E-9), 526.5 (2.40E-9),
636.2 (2.40E-9), 743.3 (2.88E-9), 754.0 (2.88E-9)
  1112.7227.3, 314.1 (4.80E-10), 445.7, 582.9, 743.3 (4.83E-10), 754.0 (4.80E-10)
  1158.2743.3 (3.29E-12), 754.0, 773.7
  1181.6204.4 (2.40E-9), 214.8, 314.1 (2.88E-9), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (2.88E-9), 754.0 (2.88E-9)
  1250.5204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (2.88E-9), 754.0 (2.88E-9)
  1259.5204.4 (2.40E-9), 314.1 (2.88E-9), 322.3 (2.40E-9), 526.5 (2.40E-9), 636.2 (2.40E-9),
743.3 (2.88E-9), 754.0 (2.88E-9)
  1339.8314.1 (4.80E-10), 445.7, 582.9, 743.3 (4.83E-10), 754.0 (4.80E-10)
  1685.7404.3, 743.3 (3.29E-12), 754.0
  1707.9214.8, 314.1 (4.80E-10), 743.3 (4.83E-10), 754.0 (4.80E-10)
  1785.5314.1 (4.80E-10), 743.3 (4.83E-10), 754.0 (4.80E-10)