| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 40.55 (b) | 42.61 (b) | 1.051 | − | 5.140 (b) | 6.723 (b) |
| 2 | (n,elastic) | 15.55 (b) | 17.54 (b) | 1.128 | − | 2.656 (b) | 3.863 (b) |
| 4 | (n,inelastic) | ( E-thr = 30.98 keV ) | 300.7 (mb) | 2.776 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.952 MeV ) | 2.173 (b) | 21.90 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.98 MeV ) | 143.0 (μb) | 10.68 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 297.6 (nb) | 128.3 (μb) | 51.03 (nb) |
| 24 | (n,2na) | ( E-thr = 3.794 MeV ) | 700.2 (nb) | 197.9e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.297 MeV ) | 30.93 (μb) | 36.59 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.96 MeV ) | 289.7e-15 (b) | 68.17e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.07 MeV ) | 51.33e-24 (b) | 1.479e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.20 MeV ) | 35.32e-24 (b) | 2.016e-12 (b) | |||
| 102 | (n,γ) | 25.00 (b) | 25.07 (b) | 1.002 | 807.4 (b) | 875.6 (μb) | 61.33 (mb) |
| 103 | (n,p) | ( E-thr = 226.3 keV ) | 7.100 (mb) | 2.694 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.060 MeV ) | 304.5 (μb) | 68.16 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.673 MeV ) | 9.860 (μb) | 3.736 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.972 MeV ) | 2.265e-15 (b) | 9.624e-15 (b) | |||
| 107 | (n,a) | 22.67 (μb) | 22.68 (μb) | 1.001 | 755.5 (μb) | 2.706 (mb) | 2.465 (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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