| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.189 (b) | 6.988 (b) | 1.129 | − | 3.719 (b) | 5.179 (b) |
| 2 | (n,elastic) | 6.186 (b) | 6.985 (b) | 1.129 | − | 2.009 (b) | 4.540 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.583 MeV ) | 582.6 (mb) | 635.9 (mb) | |||
| 16 | (n,2n) | ( E-thr = 9.972 MeV ) | 1.127 (b) | 533.6 (μb) | |||
| 17 | (n,3n) | ( E-thr = 17.18 MeV ) | − | 35.05 (nb) | |||
| 22 | (n,na) | ( E-thr = 8.192 MeV ) | 0.000 (b) | 316.1e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 12.08 MeV ) | 0.000 (b) | 8.452 (nb) | |||
| 102 | (n,γ) | 3.001 (mb) | 3.002 (mb) | 1.000 | 23.18 (mb) | 378.7 (μb) | 1.788 (mb) |
| 103 | (n,p) | ( E-thr = 6.924 MeV ) | 2.044 (mb) | 479.4 (nb) | |||
| 104 | (n,d) | ( E-thr = 9.834 MeV ) | 73.67 (μb) | 35.73 (nb) | |||
| 105 | (n,t) | ( E-thr = 12.49 MeV ) | 0.000 (b) | 78.82e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 14.34 MeV ) | − | 588.2e-21 (b) | |||
| 107 | (n,a) | ( E-thr = 2.305 MeV ) | 42.39 (μb) | 18.25 (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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