29-Cu-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 11.72 (b) 12.74 (b) 1.087 2.949 (b) 3.690 (b)
elastic 7.931 (b) 8.954 (b) 1.129 1.476 (b) 2.888 (b)
inelastic ( E-thr = 680.4 keV ) 559.6 (mb) 775.1 (mb)
(n,2n) ( E-thr = 10.06 MeV ) 607.9 (mb) 158.0 (μb)
(n,na) ( E-thr = 5.869 MeV ) 11.62 (mb) 3.081 (μb)
(n,np) ( E-thr = 6.223 MeV ) 219.4 (mb) 427.1 (μb)
(n,nd) ( E-thr = 14.73 MeV ) 4.165 (nb)
capture 3.786 (b) 3.788 (b) 1.000 4.149 (b) 657.3 (μb) 9.484 (mb)
(n,p) 0.000 (b) 0.000 (b) 83.72 (mb) 38.93 (mb) 17.67 (mb)
(n,d) ( E-thr = 3.963 MeV ) 6.314 (mb) 5.482 (μb)
(n,a) 0.000 (b) 0.000 (b) 6.926 (mb) 28.87 (mb) 390.2 (μb)
MT = 203 0.000 (b) 0.000 (b) 93.61 (mb) 258.4 (mb) 18.09 (mb)
MT = 204 ( E-thr = 3.963 MeV ) 6.314 (mb) 5.486 (μb)
MT = 207 0.000 (b) 0.000 (b) 6.928 (mb) 40.48 (mb) 393.3 (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)
 .