| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 64.25 (b) | 65.21 (b) | 1.015 | − | 5.162 (b) | 6.625 (b) |
| 2 | (n,elastic) | 7.222 (b) | 8.127 (b) | 1.125 | − | 2.927 (b) | 4.483 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 287.2 (mb) | 1.997 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.385 MeV ) | 1.908 (b) | 7.288 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.86 MeV ) | − | 2.259 (μb) | |||
| 22 | (n,na) | 256.2e-36 (b) | 259.7e-36 (b) | 0.000 | 77.02 (μb) | 1.320 (mb) | 3.478 (μb) |
| 24 | (n,2na) | ( E-thr = 3.839 MeV ) | 18.64 (mb) | 6.636 (μb) | |||
| 28 | (n,np) | ( E-thr = 7.150 MeV ) | 500.2 (μb) | 151.5 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.21 MeV ) | 18.03e-12 (b) | 286.1e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.89 MeV ) | 349.8e-30 (b) | 4.814e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.45 MeV ) | 4.953e-15 (b) | 47.54e-12 (b) | |||
| 102 | (n,γ) | 57.03 (b) | 57.08 (b) | 1.001 | 796.0 (b) | 949.8 (μb) | 140.7 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 252.1 (μb) | 13.91 (mb) | 15.82 (μb) |
| 104 | (n,d) | ( E-thr = 4.910 MeV ) | 1.292 (mb) | 272.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.910 MeV ) | 51.24 (μb) | 12.67 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.727 MeV ) | 231.5e-12 (b) | 2.084e-12 (b) | |||
| 107 | (n,a) | 577.6 (μb) | 579.7 (μb) | 1.004 | 18.79 (mb) | 4.168 (mb) | 60.91 (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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