50-Sn-118

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 4.445 (b) 4.991 (b) 1.123 4.630 (b) 5.709 (b)
elastic 4.230 (b) 4.776 (b) 1.129 2.605 (b) 4.815 (b)
inelastic ( E-thr = 105.0 keV ) 547.2 (mb) 851.9 (mb)
(n,2n) ( E-thr = 9.407 MeV ) 1.468 (b) 961.8 (μb)
(n,3n) ( E-thr = 16.41 MeV ) 122.2 (nb)
(n,na) ( E-thr = 4.095 MeV ) 20.24 (μb) 14.43 (nb)
(n,np) ( E-thr = 10.09 MeV ) 16.34 (μb) 34.20 (nb)
capture 215.6 (mb) 215.6 (mb) 1.000 5.279 (b) 934.9 (μb) 39.79 (mb)
(n,p) ( E-thr = 3.675 MeV ) 6.816 (mb) 2.215 (μb)
(n,d) ( E-thr = 7.842 MeV ) 128.7 (μb) 43.53 (nb)
(n,t) ( E-thr = 10.37 MeV ) 1.648 (nb) 196.0e-12 (b)
(n,He-3) ( E-thr = 9.880 MeV ) 6.654e-18 (b) 589.3e-18 (b)
(n,a) 98.29e-27 (b) 99.47e-27 (b) 0.000 6.054 (μb) 1.197 (mb) 503.4 (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)
 .