58-Ce-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 3.490 (b) 3.861 (b) 1.106 4.895 (b) 6.386 (b)
elastic 2.877 (b) 3.248 (b) 1.129 2.693 (b) 5.406 (b)
inelastic ( E-thr = 645.8 keV ) 545.8 (mb) 969.4 (mb)
(n,2n) ( E-thr = 7.221 MeV ) 1.642 (b) 1.782 (mb)
(n,3n) ( E-thr = 12.69 MeV ) 3.520 (mb) 1.399 (μb)
(n,na) 0.000 (b) 0.000 (b) 1.148 (μb) 301.7 (μb) 120.7 (nb)
(n,np) ( E-thr = 8.200 MeV ) 294.7 (μb) 125.1 (nb)
(n,nd) ( E-thr = 13.45 MeV ) 0.000 (b) 14.81e-12 (b)
capture 611.3 (mb) 611.7 (mb) 1.001 403.9 (mb) 787.0 (μb) 7.330 (mb)
(n,p) ( E-thr = 3.001 MeV ) 8.626 (mb) 3.545 (μb)
(n,d) ( E-thr = 5.959 MeV ) 2.200 (mb) 550.0 (nb)
(n,t) ( E-thr = 7.146 MeV ) 32.19 (μb) 24.01 (nb)
(n,He-3) ( E-thr = 6.730 MeV ) 409.5e-15 (b) 1.110e-12 (b)
(n,a) 0.000 (b) 0.000 (b) 65.58 (μb) 3.704 (mb) 4.666 (μb)
MT = 203 ( E-thr = 3.001 MeV ) 8.921 (mb) 3.670 (μb)
MT = 204 ( E-thr = 5.959 MeV ) 2.200 (mb) 550.1 (nb)
MT = 205 ( E-thr = 7.146 MeV ) 32.19 (μb) 24.01 (nb)
MT = 206 ( E-thr = 6.730 MeV ) 409.5e-15 (b) 1.110e-12 (b)
MT = 207 0.000 (b) 0.000 (b) 66.72 (μb) 4.006 (mb) 4.787 (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)
 .