51-Sb-126

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 21.68 (b) 22.26 (b) 1.027 4.780 (b) 5.741 (b)
elastic 4.253 (b) 4.798 (b) 1.128 2.795 (b) 4.708 (b)
inelastic ( E-thr = 17.84 keV ) 422.2 (mb) 964.5 (mb)
(n,2n) ( E-thr = 6.264 MeV ) 1.553 (b) 4.560 (mb)
(n,3n) ( E-thr = 15.04 MeV ) 1.226 (μb)
(n,na) ( E-thr = 5.288 MeV ) 7.550 (nb) 112.9e-12 (b)
(n,np) ( E-thr = 7.851 MeV ) 334.1 (μb) 103.8 (nb)
(n,nd) ( E-thr = 11.39 MeV ) 0.000 (b) 161.2e-12 (b)
capture 17.41 (b) 17.42 (b) 1.001 57.29 (b) 1.004 (mb) 63.44 (mb)
(n,p) 0.000 (b) 0.000 (b) 189.9 (μb) 11.48 (mb) 9.694 (μb)
(n,d) ( E-thr = 5.609 MeV ) 711.1 (μb) 149.3 (nb)
(n,t) ( E-thr = 5.081 MeV ) 33.80 (μb) 8.184 (nb)
(n,He-3) ( E-thr = 12.48 MeV ) 0.000 (b) 25.75e-18 (b)
(n,a) 0.000 (b) 0.000 (b) 410.9 (nb) 111.4 (μb) 39.62 (nb)
MT = 203 0.000 (b) 0.000 (b) 189.9 (μb) 11.81 (mb) 9.797 (μb)
MT = 204 ( E-thr = 5.609 MeV ) 711.1 (μb) 149.4 (nb)
MT = 205 ( E-thr = 5.081 MeV ) 33.80 (μb) 8.184 (nb)
MT = 206 ( E-thr = 12.48 MeV ) 0.000 (b) 25.75e-18 (b)
MT = 207 0.000 (b) 0.000 (b) 410.9 (nb) 111.4 (μb) 39.73 (nb)

These cross sections are calculated from JENDL-4.0 at 300K.
The background color of each cell noted a cross section means the order of the cross-section value.
The unit of cross section, (b), means barns, and SI prefixes are used as following.
(kb) → 103(b),   (mb) → 10−3(b),  (μb) → 10−6(b),  (nb) → 10−9(b).

Maxwellian Average :
σmacs(T) =
2
 
 
π
EU
 
EL
σ(E,T) ⋅ E ⋅ exp (
E
  
kBT
) dE
 
EU
 
EL
E ⋅ exp (
E
  
kBT
) dE
,
where T denotes the temperature, and kB the Boltzmann constant. The upper and lower limits of integration, EL and EU are set to 10−5 eV and 10 eV, respectively.
Resonance Integral :
σri(T) =
EU
 
EL
σ(E,T) ⋅
1
 
E
dE ,
with  EL = 0.5 eV  and  EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
σfacs(T) =
EU
 
EL
σ(E,T) ⋅
 
4
 
πa3b
⋅ exp (
ab E
     
4 a
) ⋅ sinh
 
bE
dE
 
EU
 
EL
 
4
 
πa3b
⋅ exp (
ab E
     
4 a
) ⋅ sinh
 
bE
dE
,
with  EL = 10−5 eV  and  EU = 20 MeV. The parameters a and b are 0.988 MeV and 2.249 MeV−1, respectively.
Westcott g-factor :
g(T) =
σmacs(T)
 
σ(0.0253 eV,T)
 .