| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 50.61 (b) | 51.14 (b) | 1.010 | − | 5.160 (b) | 6.795 (b) |
| 2 | (n,elastic) | 7.665 (b) | 8.639 (b) | 1.127 | − | 2.579 (b) | 4.361 (b) |
| 4 | (n,inelastic) | ( E-thr = 99.55 keV ) | 612.2 (mb) | 2.246 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.113 MeV ) | 1.955 (b) | 1.673 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.13 MeV ) | − | 481.9 (nb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 6.837 (μb) | 721.0 (μb) | 375.2 (nb) |
| 24 | (n,2na) | ( E-thr = 8.070 MeV ) | 4.049e-12 (b) | 36.07e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 6.975 MeV ) | 588.8 (μb) | 152.5 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.54 MeV ) | 3.675e-21 (b) | 3.016e-12 (b) | |||
| 102 | (n,γ) | 42.95 (b) | 42.50 (b) | 0.990 | 194.7 (b) | 1.396 (mb) | 186.7 (mb) |
| 103 | (n,p) | ( E-thr = 153.5 keV ) | 11.91 (mb) | 11.54 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.736 MeV ) | 753.9 (μb) | 159.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.239 MeV ) | 1.297 (μb) | 1.410 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.760 MeV ) | 3.539e-12 (b) | 279.7e-15 (b) | |||
| 107 | (n,a) | 14.65 (μb) | 14.66 (μb) | 1.001 | 220.3 (μb) | 1.780 (mb) | 19.02 (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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