| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 19.43 (b) | 20.85 (b) | 1.073 | − | 5.279 (b) | 6.899 (b) |
| 2 | (n,elastic) | 11.03 (b) | 12.45 (b) | 1.129 | − | 2.844 (b) | 4.488 (b) |
| 4 | (n,inelastic) | ( E-thr = 82.51 keV ) | 424.0 (mb) | 2.368 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.019 MeV ) | 2.009 (b) | 5.399 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.93 MeV ) | 434.8 (μb) | 8.596 (μb) | |||
| 22 | (n,na) | ( E-thr = 1.205 MeV ) | 8.683 (μb) | 7.043 (nb) | |||
| 28 | (n,np) | ( E-thr = 9.125 MeV ) | 2.341 (μb) | 7.746 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.43 MeV ) | − | 465.5e-15 (b) | |||
| 102 | (n,γ) | 8.395 (b) | 8.395 (b) | 1.000 | 36.49 (b) | 820.8 (μb) | 37.98 (mb) |
| 103 | (n,p) | ( E-thr = 3.202 MeV ) | 1.793 (mb) | 466.0 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.886 MeV ) | 95.33 (μb) | 30.34 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.131 MeV ) | 218.1 (nb) | 618.2e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 9.223 MeV ) | 8.186e-21 (b) | 63.61e-18 (b) | |||
| 107 | (n,a) | 680.9e-18 (b) | 690.4e-18 (b) | 1.014 | 479.8 (nb) | 544.8 (μb) | 141.4 (nb) |
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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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