| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.842 (b) | 6.314 (b) | 1.081 | − | 5.368 (b) | 6.729 (b) |
| 2 | (n,elastic) | 3.641 (b) | 4.111 (b) | 1.129 | − | 2.799 (b) | 4.497 (b) |
| 4 | (n,inelastic) | ( E-thr = 80.02 keV ) | 648.5 (mb) | 2.175 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.988 MeV ) | 1.919 (b) | 4.595 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.39 MeV ) | − | 4.705 (μb) | |||
| 22 | (n,na) | ( E-thr = 664.3 keV ) | 44.93 (μb) | 20.79 (nb) | |||
| 24 | (n,2na) | ( E-thr = 8.682 MeV ) | 16.23e-15 (b) | 792.5e-15 (b) | |||
| 28 | (n,np) | ( E-thr = 8.573 MeV ) | 8.002 (μb) | 13.39 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.83 MeV ) | 288.6e-27 (b) | 1.781e-12 (b) | |||
| 102 | (n,γ) | 2.201 (b) | 2.203 (b) | 1.001 | 72.06 (b) | 749.5 (μb) | 52.93 (mb) |
| 103 | (n,p) | ( E-thr = 2.720 MeV ) | 2.543 (mb) | 711.2 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.334 MeV ) | 131.1 (μb) | 35.73 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.530 MeV ) | 768.0 (nb) | 1.037 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.239 MeV ) | 1.942e-18 (b) | 453.5e-18 (b) | |||
| 107 | (n,a) | 9.124e-12 (b) | 9.253e-12 (b) | 1.014 | 6.229 (μb) | 1.685 (mb) | 663.7 (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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