| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 19.06 (b) | 20.35 (b) | 1.068 | − | 5.067 (b) | 6.226 (b) |
| 2 | (n,elastic) | 10.07 (b) | 11.37 (b) | 1.128 | − | 2.907 (b) | 5.240 (b) |
| 4 | (n,inelastic) | ( E-thr = 73.13 keV ) | 348.9 (mb) | 974.1 (mb) | |||
| 16 | (n,2n) | ( E-thr = 7.525 MeV ) | 1.800 (b) | 1.593 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.37 MeV ) | − | 668.9 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.002 MeV ) | 146.9 (μb) | 44.48 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.129 MeV ) | 2.433 (mb) | 561.4 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.76 MeV ) | 122.7e-18 (b) | 528.8e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.37 MeV ) | 0.000 (b) | 30.10e-12 (b) | |||
| 102 | (n,γ) | 8.984 (b) | 8.984 (b) | 1.000 | 11.92 (b) | 1.002 (mb) | 7.030 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 9.466 (μb) | 4.197 (mb) | 1.400 (μb) |
| 104 | (n,d) | ( E-thr = 3.802 MeV ) | 634.5 (μb) | 168.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.525 MeV ) | 12.71 (μb) | 18.01 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.073 MeV ) | 18.36e-15 (b) | 3.657e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 27.34 (μb) | 2.116 (mb) | 1.656 (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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