MT  Reaction  0.0253eV  Maxwellian Average 
gfactor  Resonance Integral 
14MeV  Fiss. Spec. Average 

1  (n,total)  119.2 (b)  120.5 (b)  1.011  −  5.721 (b)  7.695 (b) 
2  (n,elastic)  19.45 (b)  21.75 (b)  1.118  −  2.733 (b)  4.692 (b) 
4  (n,inelastic)  ( Ethr = 43.67 keV )  320.2 (mb)  1.557 (b)  
16  (n,2n)  ( Ethr = 6.873 MeV )  473.0 (mb)  4.811 (mb)  
17  (n,3n)  ( Ethr = 12.65 MeV )  127.0 (mb)  14.54 (μb)  
18  (n,fission)  6.221 (mb)  6.247 (mb)  1.004  5.259 (b)  2.067 (b)  1.223 (b) 
102  (n,γ)  99.78 (b)  98.75 (b)  0.990  631.3 (b)  25.75 (μb)  217.7 (mb) 
These cross sections are calculated from JENDL3.2 at 300K.
The background color of each cell noted a cross section means the order of the crosssection value.
The unit of cross section, (b), means barns, and SI prefixes are used as following.
(kb) → 10^{3}(b), (mb) → 10^{−3}(b),
(μb) → 10^{−6}(b), (nb) → 10^{−9}(b).
MT is a number that defines a reaction type. For the relation between MT and reaction type, please see here or refer to the manual of ENDF formats.
Maxwellian Average :
where T denotes the temperature, and k_{B} the Boltzmann constant.
The upper and lower limits of integration, E_{L} and E_{U}
are set to 10^{−5} eV and 10 eV, respectively.
Resonance Integral :
with E_{L} = 0.5 eV and E_{U} = 10 MeV.
U235 Thermal FissionNeutron Spectrum Average (Fiss. Spec. Average) :
with E_{L} = 10^{−5} eV and E_{U} = 20 MeV.
The parameters a and b are 0.988 MeV and 2.249 MeV^{−1}, respectively.
Westcott gfactor :
