| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 4.429 (b) | 4.989 (b) | 1.126 | − | 3.215 (b) | 3.706 (b) |
| 2 | (n,elastic) | 4.337 (b) | 4.897 (b) | 1.129 | − | 1.620 (b) | 2.814 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 465.9 (mb) | 888.7 (mb) | |||
| 16 | (n,2n) | ( E-thr = 9.351 MeV ) | 1.113 (b) | 669.3 (μb) | |||
| 17 | (n,3n) | ( E-thr = 15.93 MeV ) | − | 183.7 (nb) | |||
| 22 | (n,na) | ( E-thr = 6.070 MeV ) | 917.2 (μb) | 231.3 (nb) | |||
| 28 | (n,np) | ( E-thr = 11.28 MeV ) | 95.33 (μb) | 100.4 (nb) | |||
| 32 | (n,nd) | ( E-thr = 17.38 MeV ) | − | 215.6e-15 (b) | |||
| 102 | (n,γ) | 91.74 (mb) | 91.78 (mb) | 1.000 | 106.3 (mb) | 702.5 (μb) | 2.405 (mb) |
| 103 | (n,p) | ( E-thr = 5.890 MeV ) | 6.689 (mb) | 2.842 (μb) | |||
| 104 | (n,d) | ( E-thr = 9.021 MeV ) | 582.4 (μb) | 120.6 (nb) | |||
| 105 | (n,t) | ( E-thr = 11.03 MeV ) | 416.2 (nb) | 1.196 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 13.15 MeV ) | 367.0e-18 (b) | 1.892e-15 (b) | |||
| 107 | (n,a) | ( E-thr = 178.1 keV ) | 5.478 (mb) | 10.31 (μb) | |||
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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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