| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 13.17 (b) | 13.86 (b) | 1.053 | − | 4.538 (b) | 5.614 (b) |
| 2 | (n,elastic) | 5.127 (b) | 5.785 (b) | 1.128 | − | 2.653 (b) | 4.491 (b) |
| 4 | (n,inelastic) | ( E-thr = 659.1 keV ) | 702.3 (mb) | 1.043 (b) | |||
| 16 | (n,2n) | ( E-thr = 10.34 MeV ) | 1.027 (b) | 363.9 (μb) | |||
| 17 | (n,3n) | ( E-thr = 18.49 MeV ) | − | 23.84 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.259 MeV ) | 13.72 (mb) | 5.488 (μb) | |||
| 28 | (n,np) | ( E-thr = 8.381 MeV ) | 44.60 (mb) | 7.519 (μb) | |||
| 32 | (n,nd) | ( E-thr = 15.62 MeV ) | − | 8.942e-12 (b) | |||
| 102 | (n,γ) | 8.003 (b) | 8.003 (b) | 1.000 | 11.49 (b) | 1.389 (mb) | 76.79 (mb) |
| 103 | (n,p) | ( E-thr = 1.020 MeV ) | 76.29 (mb) | 466.7 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.047 MeV ) | 706.0 (μb) | 170.0 (nb) | |||
| 105 | (n,t) | ( E-thr = 9.375 MeV ) | 3.897 (μb) | 8.598 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.352 MeV ) | 1.254 (nb) | 38.45e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 7.365 (mb) | 18.75 (mb) | 648.9 (μb) |
| 111 | (n,2p) | ( E-thr = 7.267 MeV ) | 431.3 (nb) | 706.5e-12 (b) | |||
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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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