| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 12.77 (b) | 13.53 (b) | 1.059 | − | 4.338 (b) | 5.662 (b) |
| 2 | (n,elastic) | 5.731 (b) | 6.467 (b) | 1.128 | − | 2.830 (b) | 4.771 (b) |
| 4 | (n,inelastic) | ( E-thr = 238.2 keV ) | 157.9 (mb) | 820.2 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.586 MeV ) | 1.321 (b) | 1.966 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.90 MeV ) | − | 1.075 (μb) | |||
| 22 | (n,na) | ( E-thr = 2.889 MeV ) | 897.3 (μb) | 208.8 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.889 MeV ) | 6.670 (mb) | 1.496 (μb) | |||
| 32 | (n,nd) | ( E-thr = 12.86 MeV ) | 48.27e-18 (b) | 2.586 (nb) | |||
| 33 | (n,nt) | ( E-thr = 13.42 MeV ) | 0.000 (b) | 433.8e-12 (b) | |||
| 102 | (n,γ) | 7.003 (b) | 7.003 (b) | 1.000 | 41.78 (b) | 1.007 (mb) | 67.68 (mb) |
| 103 | (n,p) | ( E-thr = 344.3 keV ) | 15.14 (mb) | 55.16 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.554 MeV ) | 1.223 (mb) | 264.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.614 MeV ) | 210.3 (μb) | 56.94 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.515 MeV ) | 29.88e-15 (b) | 3.748e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 378.2 (μb) | 4.123 (mb) | 21.74 (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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