| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 10.45 (b) | 10.92 (b) | 1.044 | − | 4.974 (b) | 5.888 (b) |
| 2 | (n,elastic) | 3.668 (b) | 4.140 (b) | 1.129 | − | 3.450 (b) | 4.798 (b) |
| 4 | (n,inelastic) | ( E-thr = 607.6 keV ) | 175.9 (mb) | 1.035 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.506 MeV ) | 1.337 (b) | 850.3 (μb) | |||
| 17 | (n,3n) | ( E-thr = 16.50 MeV ) | − | 832.7 (nb) | |||
| 22 | (n,na) | ( E-thr = 1.853 MeV ) | 219.1 (μb) | 60.52 (nb) | |||
| 28 | (n,np) | ( E-thr = 8.664 MeV ) | 31.82 (μb) | 32.43 (nb) | |||
| 102 | (n,γ) | 6.786 (b) | 6.777 (b) | 0.999 | 5.611 (b) | 1.035 (mb) | 51.82 (mb) |
| 103 | (n,p) | ( E-thr = 2.140 MeV ) | 7.568 (mb) | 4.566 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.335 MeV ) | 48.44 (μb) | 27.29 (nb) | |||
| 105 | (n,t) | ( E-thr = 9.143 MeV ) | 26.15 (nb) | 3.139 (nb) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 91.72 (μb) | 3.173 (mb) | 5.213 (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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