| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 193.9 (b) | 194.9 (b) | 1.005 | − | 5.222 (b) | 6.935 (b) |
| 2 | (n,elastic) | 355.7 (μb) | 603.7 (μb) | 1.697 | − | 2.599 (b) | 4.447 (b) |
| 4 | (n,inelastic) | ( E-thr = 81.16 keV ) | 514.5 (mb) | 2.412 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.248 MeV ) | 2.105 (b) | 4.183 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.74 MeV ) | − | 3.633 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 437.8 (nb) | 178.4 (μb) | 64.41 (nb) |
| 24 | (n,2na) | ( E-thr = 7.901 MeV ) | 2.322e-12 (b) | 13.97e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.057 MeV ) | 16.62 (μb) | 14.78 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.56 MeV ) | 738.9e-24 (b) | 2.041e-12 (b) | |||
| 102 | (n,γ) | 193.9 (b) | 194.9 (b) | 1.005 | 2.747 (kb) | 989.5 (μb) | 70.71 (mb) |
| 103 | (n,p) | ( E-thr = 1.734 MeV ) | 3.095 (mb) | 1.120 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.819 MeV ) | 184.3 (μb) | 45.31 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.267 MeV ) | 1.068 (μb) | 1.191 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.142 MeV ) | 260.1e-18 (b) | 3.233e-15 (b) | |||
| 107 | (n,a) | 959.3 (nb) | 959.8 (nb) | 1.001 | 33.34 (μb) | 1.429 (mb) | 2.817 (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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