56-Ba-135

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 7.602 (b) 7.838 (b) 1.031 5.078 (b) 6.264 (b)
elastic 1.805 (b) 2.037 (b) 1.129 2.909 (b) 4.971 (b)
inelastic ( E-thr = 222.7 keV ) 548.4 (mb) 1.187 (b)
(n,2n) ( E-thr = 7.030 MeV ) 1.611 (b) 4.928 (mb)
(n,3n) ( E-thr = 16.58 MeV ) 545.1 (nb)
(n,na) ( E-thr = 1.885 MeV ) 71.94 (μb) 23.92 (nb)
(n,np) ( E-thr = 8.316 MeV ) 62.71 (μb) 39.24 (nb)
(n,nd) ( E-thr = 12.94 MeV ) 0.000 (b) 265.3e-12 (b)
capture 5.798 (b) 5.802 (b) 1.001 131.3 (b) 1.002 (mb) 95.90 (mb)
(n,p) 0.000 (b) 0.000 (b) 146.7 (μb) 5.180 (mb) 7.751 (μb)
(n,d) ( E-thr = 5.989 MeV ) 963.2 (μb) 214.8 (nb)
(n,t) ( E-thr = 6.705 MeV ) 20.57 (μb) 17.99 (nb)
(n,He-3) ( E-thr = 7.117 MeV ) 21.80e-15 (b) 6.181e-12 (b)
(n,a) 0.000 (b) 0.000 (b) 68.48 (μb) 2.236 (mb) 9.317 (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)
 .