| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 9.172 (kb) | 8.264 (kb) | 0.901 | − | 5.227 (b) | 6.550 (b) |
| 2 | (n,elastic) | 3.202 (b) | 3.024 (b) | 0.944 | − | 2.980 (b) | 3.729 (b) |
| 4 | (n,inelastic) | ( E-thr = 21.68 keV ) | 453.6 (mb) | 2.467 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.986 MeV ) | 1.781 (b) | 2.733 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.45 MeV ) | − | 3.193 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 12.27 (μb) | 391.4 (μb) | 485.5 (nb) |
| 24 | (n,2na) | ( E-thr = 5.734 MeV ) | 334.7 (nb) | 312.9e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 4.923 MeV ) | 515.1 (μb) | 154.7 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.72 MeV ) | 418.1e-12 (b) | 631.4e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 10.34 MeV ) | 60.75e-12 (b) | 99.84e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 12.96 MeV ) | 1.321e-15 (b) | 35.38e-12 (b) | |||
| 102 | (n,γ) | 9.169 (kb) | 8.261 (kb) | 0.901 | 3.143 (kb) | 830.4 (μb) | 351.5 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 58.84 (μb) | 5.678 (mb) | 4.081 (μb) |
| 104 | (n,d) | ( E-thr = 2.684 MeV ) | 2.225 (mb) | 581.3 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.425 MeV ) | 67.66 (μb) | 15.51 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.484 MeV ) | 21.60e-12 (b) | 717.0e-15 (b) | |||
| 107 | (n,a) | 8.771 (μb) | 7.938 (μb) | 0.905 | 178.4 (μb) | 3.683 (mb) | 9.953 (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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