| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 9.620 (b) | 10.33 (b) | 1.074 | − | 3.357 (b) | 4.153 (b) |
| 2 | (n,elastic) | 5.467 (b) | 6.172 (b) | 1.129 | − | 1.709 (b) | 2.510 (b) |
| 4 | (n,inelastic) | ( E-thr = 201.3 keV ) | 645.7 (mb) | 1.611 (b) | |||
| 16 | (n,2n) | ( E-thr = 10.38 MeV ) | 939.4 (mb) | 286.2 (μb) | |||
| 17 | (n,3n) | ( E-thr = 18.46 MeV ) | − | 3.735 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.389 MeV ) | 771.6 (μb) | 197.6 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.992 MeV ) | 28.73 (mb) | 35.09 (μb) | |||
| 32 | (n,nd) | ( E-thr = 15.07 MeV ) | − | 209.0e-12 (b) | |||
| 102 | (n,γ) | 4.153 (b) | 4.156 (b) | 1.001 | 63.74 (b) | 982.4 (μb) | 31.08 (mb) |
| 103 | (n,p) | ( E-thr = 398.9 keV ) | 18.20 (mb) | 1.121 (mb) | |||
| 104 | (n,d) | ( E-thr = 4.737 MeV ) | 2.822 (mb) | 622.9 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.729 MeV ) | 10.69 (μb) | 6.474 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 10.33 MeV ) | 0.000 (b) | 468.4e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 781.5 (μb) | 9.819 (mb) | 33.23 (μb) |
|
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 :
|