**Sig(2200)**: This is cross section at 0.0253 eV**Sig(E0)**: This is cross section at 0.0253380 eV

This should be equal to Sig(2200), the slight difference come from the fact that data files were processed at temperature = 293.6 K but INTER take 293.16 K as thermal temperature.**Avg-Sigma**: Cross section averaged over a Maxwellian spectrum

Avg-Sigma = integral of sigma(E)*f(E) / integral of f(E)

from 1E-5 eV to 20 * E0 (=0.50676 eV)

with f(E) = E/E0*exp(-E/E0)**G-fact**: Westcott g-factor

G-fact = Avg-Sigma / Sig(2200)

It's a measure of the deviation from the 1/v cross section behaviour in thermal energy region. If the cross section varies as a function of 1/v, G-fact = 1.0.**Res Integ**: Resonance integral

= integral of sigma(E)/E from 0.5 eV to 100 keV**Sig(fis)**: Cross section averaged over a fission spectrum

Sig(fis) = integral of sigma(E)*f(E) / integral of f(E) from 1 keV to 20 MeV

with f(E) = sqrt(E)/Ef^(3/2) * exp(-E/Ef) and Ef = 1.35MeV**Sig(E14)**: This is cross section at 14 MeV

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Last modified:Friday, 28-Apr-2017 20:14:58 CEST