| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 2.995 (b) | 3.366 (b) | 1.124 | − | 1.757 (b) | 3.673 (b) |
| 2 | (n,elastic) | 2.893 (b) | 3.265 (b) | 1.128 | − | 771.3 (mb) | 3.351 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.317 MeV ) | 311.8 (mb) | 312.1 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.769 MeV ) | 407.3 (mb) | 242.3 (μb) | |||
| 22 | (n,na) | ( E-thr = 11.51 MeV ) | 42.54 (μb) | 651.6 (nb) | |||
| 28 | (n,np) | ( E-thr = 12.76 MeV ) | 349.9 (μb) | 1.178 (μb) | |||
| 102 | (n,γ) | 101.5 (mb) | 101.7 (mb) | 1.002 | 66.16 (mb) | 325.1 (μb) | 304.2 (μb) |
| 103 | (n,p) | ( E-thr = 2.999 MeV ) | 107.7 (mb) | 2.991 (mb) | |||
| 107 | (n,a) | ( E-thr = 34.30 keV ) | 158.2 (mb) | 5.914 (mb) | |||
| 111 | (n,2p) | ( E-thr = 13.85 MeV ) | 0.000 (b) | 332.4e-12 (b) | |||
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These cross sections are calculated from JENDL-3.2 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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