| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 88.49 (b) | 88.37 (b) | 0.999 | − | 4.480 (b) | 5.578 (b) |
| 2 | (n,elastic) | 6.498 (b) | 7.317 (b) | 1.126 | − | 2.659 (b) | 3.807 (b) |
| 4 | (n,inelastic) | 0.000 (b) | 0.000 (b) | − | 3.998 (b) | 165.0 (mb) | 1.196 (b) |
| 16 | (n,2n) | ( E-thr = 6.873 MeV ) | 1.638 (b) | 7.517 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.15 MeV ) | − | 1.171 (μb) | |||
| 22 | (n,na) | ( E-thr = 3.538 MeV ) | 118.1 (μb) | 36.23 (nb) | |||
| 28 | (n,np) | ( E-thr = 7.209 MeV ) | 1.998 (mb) | 402.3 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.09 MeV ) | 14.55 (nb) | 6.872 (nb) | |||
| 33 | (n,nt) | ( E-thr = 14.16 MeV ) | − | 16.98e-12 (b) | |||
| 102 | (n,γ) | 82.00 (b) | 81.05 (b) | 0.988 | 93.89 (b) | 1.043 (mb) | 564.1 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 669.1 (μb) | 12.11 (mb) | 72.78 (μb) |
| 104 | (n,d) | ( E-thr = 4.878 MeV ) | 1.140 (mb) | 235.9 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.852 MeV ) | 87.68 (μb) | 27.38 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.377 MeV ) | 177.5e-15 (b) | 4.186e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 44.22 (μb) | 2.447 (mb) | 2.896 (μb) |
|
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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