56-Ba-136

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 3.444 (b) 3.801 (b) 1.104 5.078 (b) 6.272 (b)
elastic 2.763 (b) 3.120 (b) 1.129 2.840 (b) 5.301 (b)
inelastic ( E-thr = 824.7 keV ) 590.2 (mb) 929.6 (mb)
(n,2n) ( E-thr = 9.180 MeV ) 1.640 (b) 1.120 (mb)
(n,3n) ( E-thr = 16.21 MeV ) 1.092 (μb)
(n,na) ( E-thr = 2.057 MeV ) 106.4 (μb) 31.45 (nb)
(n,np) ( E-thr = 8.598 MeV ) 41.39 (μb) 34.21 (nb)
capture 680.5 (mb) 680.7 (mb) 1.000 1.916 (b) 1.016 (mb) 36.80 (mb)
(n,p) ( E-thr = 1.779 MeV ) 5.062 (mb) 2.843 (μb)
(n,d) ( E-thr = 6.271 MeV ) 222.9 (μb) 73.74 (nb)
(n,t) ( E-thr = 8.937 MeV ) 214.6 (nb) 4.973 (nb)
(n,a) 0.000 (b) 0.000 (b) 22.06 (μb) 1.637 (mb) 1.399 (μb)

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)
 .