| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 15.77 (b) | 16.39 (b) | 1.039 | − | 4.640 (b) | 5.527 (b) |
| 2 | (n,elastic) | 3.696 (b) | 4.167 (b) | 1.128 | − | 2.511 (b) | 4.424 (b) |
| 4 | (n,inelastic) | ( E-thr = 395.2 keV ) | 565.3 (mb) | 900.9 (mb) | |||
| 16 | (n,2n) | ( E-thr = 9.533 MeV ) | 1.530 (b) | 695.1 (μb) | |||
| 17 | (n,3n) | ( E-thr = 17.27 MeV ) | − | 248.4 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.099 MeV ) | 70.93 (μb) | 22.89 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.142 MeV ) | 4.319 (mb) | 802.4 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.30 MeV ) | 0.000 (b) | 229.2e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 14.10 MeV ) | − | 3.313e-12 (b) | |||
| 102 | (n,γ) | 12.07 (b) | 12.23 (b) | 1.013 | 325.2 (b) | 1.001 (mb) | 198.2 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 850.9 (μb) | 22.60 (mb) | 45.81 (μb) |
| 104 | (n,d) | ( E-thr = 3.811 MeV ) | 1.135 (mb) | 241.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.055 MeV ) | 10.09 (μb) | 13.85 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.073 MeV ) | 283.6e-18 (b) | 5.830e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 61.63 (μb) | 4.270 (mb) | 3.723 (μb) |
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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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