| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 19.10 (b) | 20.40 (b) | 1.068 | − | 5.067 (b) | 6.228 (b) |
| 2 | (n,elastic) | 10.17 (b) | 11.47 (b) | 1.128 | − | 2.907 (b) | 5.242 (b) |
| 4 | (n,inelastic) | ( E-thr = 167.0 keV ) | 349.0 (mb) | 973.8 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.847 MeV ) | 1.800 (b) | 1.591 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.37 MeV ) | − | 669.2 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.002 MeV ) | 146.9 (μb) | 44.49 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.297 MeV ) | 2.434 (mb) | 561.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.65 MeV ) | 0.000 (b) | 518.5e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.37 MeV ) | 0.000 (b) | 30.12e-12 (b) | |||
| 102 | (n,γ) | 8.932 (b) | 8.932 (b) | 1.000 | 11.74 (b) | 1.002 (mb) | 7.007 (mb) |
| 103 | (n,p) | ( E-thr = 1.535 MeV ) | 4.196 (mb) | 1.381 (μb) | |||
| 104 | (n,d) | ( E-thr = 3.970 MeV ) | 632.8 (μb) | 168.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.419 MeV ) | 12.58 (μb) | 17.98 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.581 MeV ) | 7.524e-15 (b) | 3.631e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 27.30 (μb) | 2.116 (mb) | 1.653 (μb) |
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These cross sections are calculated from JENDL-3.2 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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