| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 162.5 (b) | 165.1 (b) | 1.016 | − | 4.921 (b) | 5.992 (b) |
| 2 | (n,elastic) | 22.73 (b) | 25.59 (b) | 1.126 | − | 2.921 (b) | 3.978 (b) |
| 4 | (n,inelastic) | ( E-thr = 11.28 keV ) | 301.9 (mb) | 1.941 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.948 MeV ) | 1.689 (b) | 8.007 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.01 MeV ) | − | 843.4 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.452 MeV ) | 56.63 (μb) | 24.84 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.590 MeV ) | 1.272 (mb) | 272.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.76 MeV ) | 160.8e-15 (b) | 11.72 (nb) | |||
| 33 | (n,nt) | ( E-thr = 13.54 MeV ) | 0.000 (b) | 32.14e-12 (b) | |||
| 102 | (n,γ) | 139.7 (b) | 139.5 (b) | 0.998 | 105.3 (b) | 1.001 (mb) | 64.58 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 114.3 (μb) | 3.399 (mb) | 5.915 (μb) |
| 104 | (n,d) | ( E-thr = 4.262 MeV ) | 2.596 (mb) | 535.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.531 MeV ) | 203.2 (μb) | 64.47 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.120 MeV ) | 51.68e-15 (b) | 10.47e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 24.70 (μb) | 1.541 (mb) | 1.639 (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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