| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 93.01 (b) | 93.54 (b) | 1.006 | − | 4.787 (b) | 6.249 (b) |
| 2 | (n,elastic) | 2.911 (b) | 3.284 (b) | 1.128 | − | 2.960 (b) | 4.708 (b) |
| 4 | (n,inelastic) | ( E-thr = 57.81 keV ) | 165.6 (mb) | 1.517 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.403 MeV ) | 1.626 (b) | 6.327 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.29 MeV ) | 19.77 (mb) | 15.62 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 239.7 (μb) | 4.288 (mb) | 9.751 (μb) |
| 28 | (n,np) | ( E-thr = 5.865 MeV ) | 2.054 (mb) | 434.9 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.76 MeV ) | 127.9e-15 (b) | 6.703 (nb) | |||
| 33 | (n,nt) | ( E-thr = 10.00 MeV ) | 48.83e-12 (b) | 6.126 (nb) | |||
| 102 | (n,γ) | 90.04 (b) | 90.04 (b) | 1.000 | 186.0 (b) | 1.000 (mb) | 14.39 (mb) |
| 103 | (n,p) | ( E-thr = 677.3 keV ) | 4.663 (mb) | 2.508 (μb) | |||
| 104 | (n,d) | ( E-thr = 3.538 MeV ) | 1.494 (mb) | 311.9 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.533 MeV ) | 541.8 (μb) | 118.8 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.962 MeV ) | 199.9e-15 (b) | 8.109e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 186.1 (μb) | 2.135 (mb) | 14.45 (μb) |
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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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