| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.502 (b) | 6.191 (b) | 1.125 | − | 4.639 (b) | 5.519 (b) |
| 2 | (n,elastic) | 5.363 (b) | 6.052 (b) | 1.128 | − | 2.928 (b) | 4.764 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.181 MeV ) | 230.0 (mb) | 734.7 (mb) | |||
| 16 | (n,2n) | ( E-thr = 9.188 MeV ) | 1.476 (b) | 1.318 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.73 MeV ) | − | 1.699 (μb) | |||
| 22 | (n,na) | ( E-thr = 4.847 MeV ) | 2.767 (μb) | 3.877 (nb) | |||
| 28 | (n,np) | ( E-thr = 10.76 MeV ) | 326.1e-15 (b) | 5.566 (nb) | |||
| 102 | (n,γ) | 139.2 (mb) | 139.2 (mb) | 1.000 | 1.219 (b) | 1.001 (mb) | 17.85 (mb) |
| 103 | (n,p) | ( E-thr = 4.658 MeV ) | 3.309 (mb) | 777.1 (nb) | |||
| 104 | (n,d) | ( E-thr = 8.426 MeV ) | 19.57 (nb) | 9.912 (nb) | |||
| 105 | (n,t) | ( E-thr = 10.61 MeV ) | 27.46e-15 (b) | 1.200 (nb) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 291.0 (nb) | 254.0 (μb) | 71.84 (nb) |
|
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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