| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 355.5 (b) | 361.3 (b) | 1.016 | − | 5.154 (b) | 6.709 (b) |
| 2 | (n,elastic) | 4.792 (b) | 5.360 (b) | 1.119 | − | 2.756 (b) | 3.929 (b) |
| 4 | (n,inelastic) | ( E-thr = 64.09 keV ) | 481.7 (mb) | 2.664 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.415 MeV ) | 1.908 (b) | 13.15 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.60 MeV ) | − | 2.756 (μb) | |||
| 22 | (n,na) | ( E-thr = 176.1 keV ) | 19.45 (μb) | 9.485 (nb) | |||
| 24 | (n,2na) | ( E-thr = 6.556 MeV ) | 62.53e-12 (b) | 1.936e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 6.605 MeV ) | 308.4 (μb) | 107.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.35 MeV ) | 1.191 (nb) | 616.4e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.04 MeV ) | 468.1e-21 (b) | 11.40e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 12.59 MeV ) | 3.691e-18 (b) | 39.79e-12 (b) | |||
| 102 | (n,γ) | 350.7 (b) | 356.0 (b) | 1.015 | 3.588 (kb) | 2.232 (mb) | 101.8 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 59.56 (μb) | 7.617 (mb) | 4.151 (μb) |
| 104 | (n,d) | ( E-thr = 4.366 MeV ) | 640.9 (μb) | 132.6 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.050 MeV ) | 27.27 (μb) | 7.537 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.538 MeV ) | 16.67e-15 (b) | 42.77e-15 (b) | |||
| 107 | (n,a) | 2.969 (μb) | 2.970 (μb) | 1.001 | 32.04 (μb) | 2.083 (mb) | 1.399 (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 :
|