| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 14.43 (b) | 14.84 (b) | 1.028 | − | 5.079 (b) | 6.263 (b) |
| 2 | (n,elastic) | 3.138 (b) | 3.539 (b) | 1.128 | − | 2.678 (b) | 4.644 (b) |
| 4 | (n,inelastic) | ( E-thr = 360.1 keV ) | 1.034 (b) | 1.084 (b) | |||
| 16 | (n,2n) | ( E-thr = 10.34 MeV ) | 1.301 (b) | 348.7 (μb) | |||
| 17 | (n,3n) | ( E-thr = 18.11 MeV ) | − | 66.97 (nb) | |||
| 22 | (n,na) | ( E-thr = 567.3 keV ) | 8.754 (mb) | 2.812 (μb) | |||
| 28 | (n,np) | ( E-thr = 7.088 MeV ) | 5.775 (mb) | 877.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.54 MeV ) | − | 761.1e-15 (b) | |||
| 102 | (n,γ) | 11.30 (b) | 11.30 (b) | 1.000 | 177.3 (b) | 16.40 (mb) | 528.2 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 3.989 (mb) | 24.34 (mb) | 221.8 (μb) |
| 104 | (n,d) | ( E-thr = 4.760 MeV ) | 990.3 (μb) | 218.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.306 MeV ) | 2.937 (μb) | 6.750 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.331 MeV ) | 444.3e-12 (b) | 74.75e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.510 (mb) | 9.691 (mb) | 126.5 (μb) |
| 111 | (n,2p) | ( E-thr = 5.156 MeV ) | 13.84e-12 (b) | 57.22e-12 (b) | |||
|
These cross sections are calculated from JENDL-3.3 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 :
|