7-N-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 12.38 (b) 13.71 (b) 1.108 1.628 (b) 1.966 (b)
elastic 10.35 (b) 11.68 (b) 1.128 984.5 (mb) 1.835 (b)
inelastic ( E-thr = 2.480 MeV ) 399.0 (mb) 11.34 (mb)
(n,2n) ( E-thr = 11.31 MeV ) 5.880 (mb) 1.039 (μb)
(n,na) ( E-thr = 11.73 MeV ) 59.19 (μb) 119.9 (nb)
(n,np) ( E-thr = 8.095 MeV ) 44.49 (mb) 22.84 (μb)
(n,nd) ( E-thr = 11.01 MeV ) 3.812 (mb) 652.3 (nb)
(n,nt) ( E-thr = 15.85 MeV ) 76.61e-12 (b)
capture 74.73 (mb) 74.77 (mb) 1.001 33.74 (mb) 1.086 (μb) 34.62 (μb)
(n,p) 1.923 (b) 1.924 (b) 1.001 988.5 (mb) 53.93 (mb) 35.01 (mb)
(n,d) ( E-thr = 5.710 MeV ) 32.60 (mb) 318.6 (μb)
(n,t) ( E-thr = 4.304 MeV ) 10.06 (mb) 771.0 (μb)
(n,a) ( E-thr = 169.4 keV ) 60.10 (mb) 83.76 (mb)
(n,2a) ( E-thr = 9.458 MeV ) 34.36 (mb) 5.619 (μb)
MT = 800 ( E-thr = 169.4 keV ) 14.16 (mb) 78.19 (mb)
MT = 801 ( E-thr = 2.442 MeV ) 6.078 (mb) 4.620 (mb)
MT = 849 ( E-thr = 4.717 MeV ) 39.64 (mb) 941.2 (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)
 .