| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 195.6 (b) | 199.7 (b) | 1.021 | − | 4.560 (b) | 5.793 (b) |
| 2 | (n,elastic) | 2.588 (b) | 2.898 (b) | 1.120 | − | 2.549 (b) | 4.573 (b) |
| 4 | (n,inelastic) | ( E-thr = 339.2 keV ) | 434.7 (mb) | 1.047 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.115 MeV ) | 1.552 (b) | 1.082 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.45 MeV ) | − | 241.4 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.099 MeV ) | 65.14 (μb) | 23.44 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.132 MeV ) | 3.291 (mb) | 815.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.37 MeV ) | 795.4e-30 (b) | 53.18e-12 (b) | |||
| 102 | (n,γ) | 193.0 (b) | 196.8 (b) | 1.020 | 3.085 (kb) | 956.2 (μb) | 170.2 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 487.4 (μb) | 22.22 (mb) | 27.28 (μb) |
| 104 | (n,d) | ( E-thr = 3.888 MeV ) | 1.019 (mb) | 228.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.053 MeV ) | 10.73 (μb) | 6.129 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.080 MeV ) | 529.4e-15 (b) | 93.00e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 24.96 (μb) | 1.963 (mb) | 1.509 (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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