7-N-14

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 12.40 (b) 13.74 (b) 1.108 1.628 (b) 1.964 (b)
elastic 10.37 (b) 11.70 (b) 1.128 984.1 (mb) 1.832 (b)
inelastic ( E-thr = 2.480 MeV ) 399.3 (mb) 11.36 (mb)
(n,2n) ( E-thr = 11.31 MeV ) 5.670 (mb) 1.006 (μb)
(n,na) ( E-thr = 12.45 MeV ) 29.95 (μb) 113.6 (nb)
(n,np) ( E-thr = 8.095 MeV ) 44.52 (mb) 22.89 (μb)
(n,nd) ( E-thr = 11.01 MeV ) 3.826 (mb) 654.7 (nb)
capture 75.00 (mb) 75.05 (mb) 1.001 33.86 (mb) 1.036 (μb) 34.69 (μb)
(n,p) 1.930 (b) 1.931 (b) 1.001 992.2 (mb) 54.03 (mb) 35.13 (mb)
(n,d) ( E-thr = 5.710 MeV ) 32.66 (mb) 319.6 (μb)
(n,t) ( E-thr = 4.304 MeV ) 10.00 (mb) 773.8 (μb)
(n,a) ( E-thr = 169.4 keV ) 60.10 (mb) 84.07 (mb)
(n,2a) ( E-thr = 9.458 MeV ) 34.48 (mb) 5.639 (μb)
MT = 800 ( E-thr = 169.4 keV ) 14.21 (mb) 78.48 (mb)
MT = 801 ( E-thr = 2.442 MeV ) 6.101 (mb) 4.637 (mb)
MT = 849 ( E-thr = 4.717 MeV ) 39.79 (mb) 944.7 (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)
 .