| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 65.00 (b) | 67.71 (b) | 1.042 | − | 2.025 (b) | 2.735 (b) |
| 2 | (n,elastic) | 20.90 (b) | 23.59 (b) | 1.129 | − | 910.5 (mb) | 2.472 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.254 MeV ) | 273.7 (mb) | 108.4 (mb) | |||
| 16 | (n,2n) | ( E-thr = 13.01 MeV ) | 2.820 (mb) | 950.6 (nb) | |||
| 22 | (n,na) | ( E-thr = 7.198 MeV ) | 84.01 (mb) | 17.15 (μb) | |||
| 28 | (n,np) | ( E-thr = 6.555 MeV ) | 465.2 (mb) | 522.0 (μb) | |||
| 32 | (n,nd) | ( E-thr = 16.01 MeV ) | − | 3.258 (nb) | |||
| 102 | (n,γ) | 43.60 (b) | 43.62 (b) | 1.000 | 17.82 (b) | 349.4 (μb) | 1.074 (mb) |
| 103 | (n,p) | 489.3 (mb) | 490.1 (mb) | 1.002 | 864.4 (mb) | 137.1 (mb) | 96.25 (mb) |
| 104 | (n,d) | ( E-thr = 4.267 MeV ) | 11.36 (mb) | 27.06 (μb) | |||
| 105 | (n,t) | ( E-thr = 9.572 MeV ) | 1.513 (mb) | 439.6 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.808 MeV ) | 14.37 (μb) | 3.042 (nb) | |||
| 107 | (n,a) | 80.01 (μb) | 80.06 (μb) | 1.001 | 363.8 (mb) | 137.3 (mb) | 56.45 (mb) |
| 111 | (n,2p) | ( E-thr = 11.00 MeV ) | 12.74 (μb) | 26.92 (nb) | |||
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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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