| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 8.984 (b) | 9.662 (b) | 1.075 | − | 3.277 (b) | 3.792 (b) |
| 2 | (n,elastic) | 5.274 (b) | 5.951 (b) | 1.128 | − | 1.668 (b) | 2.869 (b) |
| 4 | (n,inelastic) | ( E-thr = 395.5 keV ) | 686.7 (mb) | 910.4 (mb) | |||
| 16 | (n,2n) | ( E-thr = 9.435 MeV ) | 893.1 (mb) | 399.6 (μb) | |||
| 17 | (n,3n) | ( E-thr = 17.20 MeV ) | − | 38.94 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.335 MeV ) | 1.583 (mb) | 390.7 (nb) | |||
| 28 | (n,np) | ( E-thr = 7.978 MeV ) | 1.473 (mb) | 344.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 15.07 MeV ) | − | 330.8e-12 (b) | |||
| 102 | (n,γ) | 3.710 (b) | 3.711 (b) | 1.000 | 32.18 (b) | 744.8 (μb) | 12.09 (mb) |
| 103 | (n,p) | ( E-thr = 2.052 MeV ) | 19.37 (mb) | 98.87 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.722 MeV ) | 3.038 (mb) | 1.099 (μb) | |||
| 105 | (n,t) | ( E-thr = 8.722 MeV ) | 192.4 (μb) | 44.39 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 11.21 MeV ) | 17.48e-15 (b) | 1.555e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 275.9 (μb) | 3.411 (mb) | 11.77 (μb) |
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These cross sections are calculated from JENDL-3.3 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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