28-Ni-62

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
(n,total) 23.79 (b) 25.03 (b) 1.052 2.760 (b) 3.672 (b)
(n,elastic) 9.583 (b) 10.82 (b) 1.129 1.276 (b) 3.088 (b)
(n,inelastic) ( E-thr = 1.192 MeV ) 635.1 (mb) 580.5 (mb)
(n,2n) ( E-thr = 10.77 MeV ) 808.2 (mb) 204.1 (μb)
(n,3n) ( E-thr = 18.72 MeV ) 989.4e-12 (b)
(n,na) ( E-thr = 7.133 MeV ) 540.7 (μb) 284.7 (nb)
(n,np) ( E-thr = 11.32 MeV ) 736.5 (μb) 409.2 (nb)
(n,γ) 14.20 (b) 14.21 (b) 1.001 6.892 (b) 28.95 (μb) 3.450 (mb)
(n,p) ( E-thr = 4.532 MeV ) 24.02 (mb) 34.56 (μb)
(n,d) ( E-thr = 9.058 MeV ) 872.1 (μb) 174.4 (nb)
(n,t) ( E-thr = 12.17 MeV ) 24.25 (nb) 933.2e-12 (b)
(n,He-3) ( E-thr = 12.37 MeV ) 57.23e-18 (b) 1.465e-12 (b)
(n,a) ( E-thr = 444.6 keV ) 17.30 (mb) 42.56 (μb)
(n,2p) ( E-thr = 14.48 MeV ) 65.83e-15 (b)
MT = 203 ( E-thr = 4.532 MeV ) 24.76 (mb) 34.97 (μb)
MT = 204 ( E-thr = 9.058 MeV ) 872.1 (μb) 174.4 (nb)
MT = 205 ( E-thr = 12.17 MeV ) 24.25 (nb) 933.2e-12 (b)
MT = 206 ( E-thr = 12.37 MeV ) 57.23e-18 (b) 1.465e-12 (b)
MT = 207 ( E-thr = 444.6 keV ) 17.84 (mb) 42.85 (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)
 .