| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 10.69 (b) | 11.79 (b) | 1.103 | − | 3.211 (b) | 4.184 (b) |
| 2 | (n,elastic) | 8.574 (b) | 9.675 (b) | 1.128 | − | 1.690 (b) | 3.381 (b) |
| 4 | (n,inelastic) | ( E-thr = 13.48 keV ) | 570.3 (mb) | 783.4 (mb) | |||
| 16 | (n,2n) | ( E-thr = 6.877 MeV ) | 864.1 (mb) | 444.0 (μb) | |||
| 17 | (n,3n) | ( E-thr = 16.14 MeV ) | − | 43.26 (nb) | |||
| 22 | (n,na) | ( E-thr = 4.148 MeV ) | 20.51 (mb) | 12.91 (μb) | |||
| 28 | (n,np) | ( E-thr = 8.648 MeV ) | 9.589 (mb) | 2.671 (μb) | |||
| 32 | (n,nd) | ( E-thr = 14.49 MeV ) | − | 16.74e-12 (b) | |||
| 102 | (n,γ) | 2.112 (b) | 2.112 (b) | 1.000 | 5.876 (b) | 770.7 (μb) | 15.72 (mb) |
| 103 | (n,p) | ( E-thr = 794.4 keV ) | 35.53 (mb) | 1.289 (mb) | |||
| 104 | (n,d) | ( E-thr = 6.391 MeV ) | 3.167 (mb) | 828.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.144 MeV ) | 24.75 (μb) | 12.70 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.521 MeV ) | 105.4 (nb) | 80.61e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 4.506 (mb) | 16.56 (mb) | 473.5 (μb) |
| 111 | (n,2p) | ( E-thr = 8.774 MeV ) | 175.4 (nb) | 265.5e-12 (b) | |||
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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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