| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 34.13 (b) | 36.86 (b) | 1.080 | − | 5.357 (b) | 7.105 (b) |
| 2 | (n,elastic) | 21.21 (b) | 23.93 (b) | 1.129 | − | 2.628 (b) | 4.316 (b) |
| 4 | (n,inelastic) | ( E-thr = 93.85 keV ) | 512.0 (mb) | 2.750 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.429 MeV ) | 2.212 (b) | 8.844 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.56 MeV ) | 365.2 (μb) | 13.49 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 0.000 (b) | 18.04 (μb) | 7.605 (nb) |
| 28 | (n,np) | ( E-thr = 8.058 MeV ) | 6.579 (μb) | 10.18 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.65 MeV ) | 0.000 (b) | 18.67e-12 (b) | |||
| 102 | (n,γ) | 12.92 (b) | 12.92 (b) | 1.000 | 29.34 (b) | 1.350 (mb) | 30.61 (mb) |
| 103 | (n,p) | ( E-thr = 2.334 MeV ) | 1.935 (mb) | 601.2 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.821 MeV ) | 995.1 (μb) | 144.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.359 MeV ) | 10.76 (μb) | 7.230 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.989 MeV ) | 0.000 (b) | 5.036e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 2.196 (μb) | 499.7 (μb) | 201.5 (nb) |
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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).
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 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 :
with EL = 0.5 eV and EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
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 :
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