| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 4.608 (b) | 4.736 (b) | 1.028 | − | 4.932 (b) | 6.717 (b) |
| 2 | (n,elastic) | 1.004 (b) | 1.132 (b) | 1.128 | − | 2.501 (b) | 5.359 (b) |
| 4 | (n,inelastic) | ( E-thr = 701.4 keV ) | 777.0 (mb) | 1.327 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.877 MeV ) | 1.632 (b) | 3.683 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.05 MeV ) | − | 7.084 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 244.9 (μb) | 3.845 (mb) | 8.377 (μb) |
| 28 | (n,np) | ( E-thr = 8.031 MeV ) | 111.9 (μb) | 63.44 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.11 MeV ) | 0.000 (b) | 255.8e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.77 MeV ) | 0.000 (b) | 142.9e-12 (b) | |||
| 102 | (n,γ) | 3.604 (b) | 3.604 (b) | 1.000 | 4.296 (b) | 1.028 (mb) | 27.68 (mb) |
| 103 | (n,p) | ( E-thr = 2.229 MeV ) | 9.914 (mb) | 3.873 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.704 MeV ) | 836.2 (μb) | 235.3 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.878 MeV ) | 172.1 (μb) | 72.80 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.109 MeV ) | 82.30e-15 (b) | 6.680e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 177.4 (μb) | 5.038 (mb) | 14.81 (μb) |
|
These cross sections are calculated from JENDL-3.2 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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