| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 13.23 (b) | 14.10 (b) | 1.066 | − | 5.132 (b) | 6.610 (b) |
| 2 | (n,elastic) | 7.727 (b) | 8.605 (b) | 1.114 | − | 2.610 (b) | 4.186 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 430.5 (mb) | 2.348 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.032 MeV ) | 2.086 (b) | 4.863 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.36 MeV ) | − | 5.910 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.744 (μb) | 134.5 (μb) | 97.85 (nb) |
| 24 | (n,2na) | ( E-thr = 5.294 MeV ) | 57.52 (nb) | 93.91e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.248 MeV ) | 20.83 (μb) | 19.86 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.41 MeV ) | 63.35e-24 (b) | 7.273e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.33 MeV ) | 83.20e-27 (b) | 555.4e-15 (b) | |||
| 102 | (n,γ) | 5.503 (b) | 5.495 (b) | 0.999 | 154.0 (b) | 955.2 (μb) | 69.99 (mb) |
| 103 | (n,p) | ( E-thr = 1.345 MeV ) | 3.688 (mb) | 1.231 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.012 MeV ) | 252.3 (μb) | 58.51 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.117 MeV ) | 2.370 (μb) | 1.622 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.516 MeV ) | 1.068e-15 (b) | 7.306e-15 (b) | |||
| 107 | (n,a) | 12.35 (μb) | 12.15 (μb) | 0.984 | 27.35 (μb) | 1.645 (mb) | 1.820 (μb) |
|
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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