Results:2 different decay possibilities were found


Dataset #1:

Author: M.S. Basunia and A.M. Hurst   Citation:Nuclear Data Sheets 134, 1 (2016)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
27
11
Na
 0    5/2+   301 ms 6    β-n: 0.13 4  2626   
26
12
Mg
 

Gamma and X-ray radiation:

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



  1808.68 6        0.13 % 6   0.0024 10 

Dataset #2:

Author: M. Shamsuzzoha Basunia   Citation:Nuclear Data Sheets 112, 1875 (2011)

Parent
Nucleus
Parent
E(level)
Parent
Parent
T1/2
Decay Mode GS-GS Q-value
(keV)
Daughter
Nucleus
Decay
Scheme
 
ENSDF
file
 
27
11
Na
 0.0    5/2+   301 ms 6    β-   9010 40   
27
12
Mg
 

Beta-:

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




  1803 20      4.02E+3 4      0.18 % 4   0.0032 7 
  1909 20      4.23E+3 4      0.16 % 4   0.0031 8 
  2018 20      4.46E+3 4      0.17 % 6   0.0034 12 
  2215 20      4.86E+3 4      0.026 % 9   5.8E-4 20 
  2538 20      5.52E+3 4      0.52 % 7   0.0132 18 
  2570 20      5.58E+3 4      0.74 % 8   0.0190 21 
  2726 20      5.90E+3 4      0.50 % 7   0.0136 19 
  3302 20      7.07E+3 4     ≈0 % ≈0
  3422 20      7.31E+3 4     11.3 % 7   0.387 24 
  3774 20      8.03E+3 4     85.8 % 11   3.24 4 

Mean beta- energy: 3.70E+3 keV 8, total beta- intensity: 99.9 % 16, mean beta- dose: 3.70 MeV/Bq-s 10

Gamma and X-ray radiation:

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



   955.34 13        0.9 % 9   0.008 8 
   984.66 8       87.4 %  0.861
  1169.40 25        0.59 % 6   0.0069 7 
  1666.7 9        0.10 % 3   0.0016 6 
  1698.0 1       11.9 % 6   0.202 10 
  1728.9 5        0.32 % 4   0.0056 8 
  1792.7 7        0.15 % 3   0.0027 6 
  1940.0 1        0.46 % 5   0.0090 10 
  2442.3 5        0.42 % 6   0.0102 15 
  2451.8 4        0.026 % 9   6.4E-4 21 
  2506.0 7        0.25 % 4   0.0064 11 
  2612.8 6        0.17 % 5   0.0046 14 
  2836.1 8        0.064 % 13   0.0018 4 
  3490.7 7        0.12 % 4   0.0043 15 
  4007.6 9        0.18 % 3   0.0074 14 

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
   955.34984.66, 1169.40, 1666.7, 2612.8, 2836.1
   984.66955.34, 1169.40, 1666.7, 2442.3, 2506.0, 2612.8, 2836.1, 4007.6
  1169.40955.34, 984.66, 1666.7, 1940.0
  1666.7955.34, 984.66, 1169.40, 1940.0
  1698.01728.9, 1792.7, 2451.8
  1728.91698.0
  1792.71698.0
  1940.01169.40, 1666.7, 2612.8, 2836.1
  2442.3984.66
  2451.81698.0
  2506.0984.66
  2612.8955.34, 984.66, 1940.0
  2836.1955.34, 984.66, 1940.0
  4007.6984.66