| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 327.5 (b) | 323.6 (b) | 0.988 | − | 5.130 (b) | 6.798 (b) |
| 2 | (n,elastic) | 7.821 (b) | 8.717 (b) | 1.115 | − | 2.598 (b) | 3.821 (b) |
| 4 | (n,inelastic) | ( E-thr = 9.799 keV ) | 371.7 (mb) | 2.852 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.324 MeV ) | 2.145 (b) | 16.43 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.63 MeV ) | − | 5.149 (μb) | |||
| 22 | (n,na) | 1.292e-30 (b) | 1.313e-30 (b) | 0.000 | 4.051 (μb) | 427.5 (μb) | 282.4 (nb) |
| 24 | (n,2na) | ( E-thr = 3.486 MeV ) | 6.788 (μb) | 1.816 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.612 MeV ) | 88.42 (μb) | 49.09 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.59 MeV ) | 8.939e-12 (b) | 121.1e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.01 MeV ) | 275.1e-24 (b) | 1.750e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 12.83 MeV ) | 2.319e-24 (b) | 5.309e-12 (b) | |||
| 102 | (n,γ) | 319.7 (b) | 314.9 (b) | 0.985 | 542.1 (b) | 1.050 (mb) | 106.9 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 64.37 (μb) | 7.688 (mb) | 4.269 (μb) |
| 104 | (n,d) | ( E-thr = 4.376 MeV ) | 648.3 (μb) | 136.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.298 MeV ) | 19.67 (μb) | 6.006 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.714 MeV ) | 760.4e-15 (b) | 91.16e-15 (b) | |||
| 107 | (n,a) | 50.55 (μb) | 50.60 (μb) | 1.001 | 2.629 (mb) | 5.860 (mb) | 13.56 (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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