| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 323.1 (b) | 320.2 (b) | 0.991 | − | 5.338 (b) | 6.677 (b) |
| 2 | (n,elastic) | 10.36 (b) | 11.55 (b) | 1.115 | − | 2.923 (b) | 3.910 (b) |
| 4 | (n,inelastic) | ( E-thr = 83.92 keV ) | 541.1 (mb) | 2.524 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.607 MeV ) | 1.865 (b) | 2.438 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.96 MeV ) | − | 2.217 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.244 (μb) | 312.1 (μb) | 121.0 (nb) |
| 24 | (n,2na) | ( E-thr = 7.044 MeV ) | 271.8e-12 (b) | 73.10e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 5.933 MeV ) | 323.8 (μb) | 95.73 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.01 MeV ) | 3.820e-15 (b) | 124.5e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 11.34 MeV ) | 18.73e-15 (b) | 24.69e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.24 MeV ) | − | 8.780e-12 (b) | |||
| 102 | (n,γ) | 312.7 (b) | 308.7 (b) | 0.987 | 1.413 (kb) | 933.8 (μb) | 241.8 (mb) |
| 103 | (n,p) | ( E-thr = 25.44 keV ) | 3.898 (mb) | 2.342 (μb) | |||
| 104 | (n,d) | ( E-thr = 3.693 MeV ) | 1.008 (mb) | 214.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.707 MeV ) | 7.625 (μb) | 3.476 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.883 MeV ) | 47.66e-15 (b) | 70.70e-15 (b) | |||
| 107 | (n,a) | 713.4 (nb) | 703.6 (nb) | 0.986 | 41.07 (μb) | 1.386 (mb) | 2.264 (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 :
|