| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 32.31 (b) | 32.63 (b) | 1.010 | − | 4.916 (b) | 5.926 (b) |
| 2 | (n,elastic) | 3.290 (b) | 3.708 (b) | 1.127 | − | 2.823 (b) | 4.914 (b) |
| 4 | (n,inelastic) | ( E-thr = 666.8 keV ) | 220.0 (mb) | 970.7 (mb) | |||
| 16 | (n,2n) | ( E-thr = 5.467 MeV ) | 1.841 (b) | 12.83 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.74 MeV ) | − | 1.265 (μb) | |||
| 22 | (n,na) | ( E-thr = 144.8 keV ) | 648.6 (μb) | 199.6 (nb) | |||
| 28 | (n,np) | ( E-thr = 8.468 MeV ) | 146.4 (μb) | 99.27 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.43 MeV ) | 0.000 (b) | 1.880 (nb) | |||
| 102 | (n,γ) | 29.02 (b) | 28.93 (b) | 0.997 | 148.3 (b) | 839.4 (μb) | 27.84 (mb) |
| 103 | (n,p) | ( E-thr = 1.732 MeV ) | 9.558 (mb) | 4.937 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.228 MeV ) | 4.840 (mb) | 992.3 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.124 MeV ) | 937.5 (μb) | 239.6 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.439 MeV ) | 0.000 (b) | 744.3e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.139 (mb) | 19.15 (mb) | 126.1 (μb) |
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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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