| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 1.358 (kb) | 1.669 (kb) | 1.229 | − | 5.373 (b) | 6.690 (b) |
| 2 | (n,elastic) | 5.665 (b) | 6.373 (b) | 1.125 | − | 2.955 (b) | 3.779 (b) |
| 4 | (n,inelastic) | ( E-thr = 68.62 keV ) | 427.6 (mb) | 2.769 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.484 MeV ) | 1.977 (b) | 13.20 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.09 MeV ) | − | 2.535 (μb) | |||
| 22 | (n,na) | ( E-thr = 569.7 keV ) | 15.26 (μb) | 5.595 (nb) | |||
| 24 | (n,2na) | ( E-thr = 6.210 MeV ) | 12.18 (nb) | 78.68e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 6.510 MeV ) | 564.4 (μb) | 167.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.18 MeV ) | 3.772 (nb) | 790.4e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.19 MeV ) | 186.5e-21 (b) | 13.25e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 12.42 MeV ) | 535.8e-18 (b) | 69.70e-12 (b) | |||
| 102 | (n,γ) | 1.353 (kb) | 1.663 (kb) | 1.229 | 1.354 (kb) | 871.7 (μb) | 128.7 (mb) |
| 103 | (n,p) | 5.312 (nb) | 5.346 (nb) | 1.007 | 156.4 (μb) | 11.31 (mb) | 8.714 (μb) |
| 104 | (n,d) | ( E-thr = 4.271 MeV ) | 778.0 (μb) | 159.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 3.879 MeV ) | 44.84 (μb) | 11.01 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.390 MeV ) | 139.2e-15 (b) | 95.72e-15 (b) | |||
| 107 | (n,a) | 29.35 (μb) | 29.54 (μb) | 1.007 | 64.97 (μb) | 979.2 (μb) | 925.9 (nb) |
|
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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