| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 14.29 (b) | 14.71 (b) | 1.029 | − | 3.841 (b) | 4.940 (b) |
| 2 | (n,elastic) | 3.290 (b) | 3.712 (b) | 1.128 | − | 2.474 (b) | 3.359 (b) |
| 4 | (n,inelastic) | ( E-thr = 209.7 keV ) | 291.2 (mb) | 1.525 (b) | |||
| 16 | (n,2n) | ( E-thr = 10.82 MeV ) | 883.3 (mb) | 217.9 (μb) | |||
| 17 | (n,3n) | ( E-thr = 19.22 MeV ) | − | 1.340 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.528 MeV ) | 1.554 (mb) | 371.2 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.413 MeV ) | 144.8 (mb) | 194.6 (μb) | |||
| 32 | (n,nd) | ( E-thr = 14.71 MeV ) | − | 360.8e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 15.96 MeV ) | − | 3.057e-12 (b) | |||
| 102 | (n,γ) | 11.00 (b) | 11.00 (b) | 1.000 | 128.9 (b) | 1.030 (mb) | 50.90 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 37.11 (mb) | 31.43 (mb) | 4.452 (mb) |
| 104 | (n,d) | ( E-thr = 4.073 MeV ) | 1.645 (mb) | 548.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.445 MeV ) | 10.21 (μb) | 12.18 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.125 MeV ) | 31.46e-12 (b) | 27.91e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.228 (mb) | 11.87 (mb) | 54.10 (μb) |
| 111 | (n,2p) | ( E-thr = 9.967 MeV ) | 45.86e-12 (b) | 12.03e-12 (b) | |||
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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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