| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.639 (b) | 7.092 (b) | 1.068 | − | 2.483 (b) | 3.345 (b) |
| 2 | (n,elastic) | 3.494 (b) | 3.945 (b) | 1.129 | − | 1.108 (b) | 2.811 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 826.4 (mb) | 530.3 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.090 MeV ) | 345.0 (mb) | 144.6 (μb) | |||
| 17 | (n,3n) | ( E-thr = 17.99 MeV ) | − | 119.9e-12 (b) | |||
| 22 | (n,na) | ( E-thr = 8.079 MeV ) | 38.48 (μb) | 182.6 (nb) | |||
| 28 | (n,np) | ( E-thr = 9.785 MeV ) | 52.22 (mb) | 8.994 (μb) | |||
| 32 | (n,nd) | ( E-thr = 16.53 MeV ) | − | 5.304e-12 (b) | |||
| 44 | (n,n2p) | ( E-thr = 16.68 MeV ) | − | 31.68e-15 (b) | |||
| 102 | (n,γ) | 3.144 (b) | 3.147 (b) | 1.001 | 1.547 (b) | 1.153 (mb) | 2.089 (mb) |
| 103 | (n,p) | ( E-thr = 260.8 keV ) | 101.6 (mb) | 2.197 (mb) | |||
| 104 | (n,d) | ( E-thr = 7.516 MeV ) | 5.393 (mb) | 1.304 (μb) | |||
| 105 | (n,t) | ( E-thr = 10.15 MeV ) | 6.592 (μb) | 2.060 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.806 MeV ) | 176.1 (nb) | 77.95e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 2.950 (mb) | 41.01 (mb) | 135.1 (μb) |
| 108 | (n,2a) | ( E-thr = 8.804 MeV ) | 44.89e-18 (b) | 56.25e-15 (b) | |||
| 111 | (n,2p) | ( E-thr = 8.373 MeV ) | 346.5 (μb) | 62.02 (nb) | |||
| 112 | (n,pa) | ( E-thr = 10.35 MeV ) | 56.42e-15 (b) | 22.97e-12 (b) | |||
| 115 | (n,pd) | ( E-thr = 14.41 MeV ) | − | 11.03e-12 (b) | |||
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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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