56-Ba-132

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 10.35 (b) 10.77 (b) 1.041 5.078 (b) 6.259 (b)
elastic 3.314 (b) 3.741 (b) 1.129 2.745 (b) 4.867 (b)
inelastic ( E-thr = 468.2 keV ) 767.3 (mb) 1.111 (b)
(n,2n) ( E-thr = 9.878 MeV ) 1.542 (b) 601.5 (μb)
(n,3n) ( E-thr = 17.43 MeV ) 246.1 (nb)
(n,na) ( E-thr = 1.021 MeV ) 2.140 (mb) 576.5 (nb)
(n,np) ( E-thr = 7.739 MeV ) 759.2 (μb) 160.8 (nb)
capture 7.003 (b) 7.006 (b) 1.001 31.20 (b) 3.813 (mb) 274.1 (mb)
(n,p) ( E-thr = 499.3 keV ) 12.75 (mb) 32.13 (μb)
(n,d) ( E-thr = 5.412 MeV ) 375.3 (μb) 104.5 (nb)
(n,t) ( E-thr = 8.529 MeV ) 1.370 (μb) 5.585 (nb)
(n,He-3) ( E-thr = 5.469 MeV ) 12.81e-12 (b) 10.82e-12 (b)
(n,a) 0.000 (b) 0.000 (b) 459.6 (μb) 4.415 (mb) 32.99 (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)
 .