58-Ce-143

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 10.54 (b) 11.14 (b) 1.057 4.967 (b) 6.166 (b)
elastic 4.518 (b) 5.099 (b) 1.128 2.844 (b) 4.240 (b)
inelastic ( E-thr = 19.03 keV ) 240.8 (mb) 1.893 (b)
(n,2n) ( E-thr = 5.181 MeV ) 1.742 (b) 26.92 (mb)
(n,3n) ( E-thr = 12.40 MeV ) 137.1 (mb) 27.43 (μb)
(n,na) 0.000 (b) 0.000 (b) 129.3 (nb) 163.8 (μb) 48.13 (nb)
(n,np) ( E-thr = 8.929 MeV ) 17.10 (μb) 23.89 (nb)
(n,nd) ( E-thr = 11.89 MeV ) 0.000 (b) 273.3e-12 (b)
capture 6.003 (b) 6.006 (b) 1.001 15.92 (b) 951.6 (μb) 6.260 (mb)
(n,p) ( E-thr = 2.661 MeV ) 4.011 (mb) 1.613 (μb)
(n,d) ( E-thr = 6.689 MeV ) 374.2 (μb) 93.88 (nb)
(n,t) ( E-thr = 5.591 MeV ) 45.69 (μb) 11.19 (nb)
(n,He-3) ( E-thr = 8.808 MeV ) 0.000 (b) 4.833e-15 (b)
(n,a) 0.000 (b) 0.000 (b) 21.78 (μb) 550.9 (μb) 2.532 (μb)
MT = 203 ( E-thr = 2.661 MeV ) 4.028 (mb) 1.637 (μb)
MT = 204 ( E-thr = 6.689 MeV ) 374.2 (μb) 94.16 (nb)
MT = 205 ( E-thr = 5.591 MeV ) 45.69 (μb) 11.19 (nb)
MT = 206 ( E-thr = 8.808 MeV ) 0.000 (b) 4.833e-15 (b)
MT = 207 0.000 (b) 0.000 (b) 21.91 (μb) 714.7 (μb) 2.581 (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)
 .