| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 223.1 (b) | 232.1 (b) | 1.040 | − | 5.110 (b) | 6.510 (b) |
| 2 | (n,elastic) | 79.55 (b) | 89.09 (b) | 1.120 | − | 2.851 (b) | 4.378 (b) |
| 4 | (n,inelastic) | ( E-thr = 50.27 keV ) | 146.7 (mb) | 1.985 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.329 MeV ) | 2.045 (b) | 27.24 (mb) | |||
| 17 | (n,3n) | ( E-thr = 12.95 MeV ) | 67.46 (mb) | 24.03 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 393.7 (nb) | 339.4 (μb) | 95.93 (nb) |
| 24 | (n,2na) | ( E-thr = 4.138 MeV ) | 5.886 (μb) | 934.8e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.787 MeV ) | 5.403 (μb) | 8.299 (nb) | |||
| 30 | (n,2n2a) | ( E-thr = 2.831 MeV ) | 62.20e-12 (b) | 572.8e-15 (b) | |||
| 32 | (n,nd) | ( E-thr = 11.74 MeV ) | 134.4e-15 (b) | 107.1e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.43 MeV ) | 2.477e-21 (b) | 9.324e-12 (b) | |||
| 37 | (n,4n) | ( E-thr = 18.74 MeV ) | − | 105.5e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.98 MeV ) | 1.491e-18 (b) | 1.799e-12 (b) | |||
| 102 | (n,γ) | 143.5 (b) | 143.0 (b) | 0.996 | 573.9 (b) | 514.8 (μb) | 119.4 (mb) |
| 103 | (n,p) | ( E-thr = 1.928 MeV ) | 1.534 (mb) | 466.2 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.547 MeV ) | 190.0 (μb) | 43.84 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.436 MeV ) | 25.10 (μb) | 7.104 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.969 MeV ) | 91.34e-18 (b) | 11.91e-15 (b) | |||
| 107 | (n,a) | 411.3 (μb) | 411.6 (μb) | 1.001 | 849.9 (μb) | 2.519 (mb) | 4.391 (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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