| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 60.79 (kb) | 50.75 (kb) | 0.835 | − | 5.296 (b) | 6.684 (b) |
| 2 | (n,elastic) | 59.49 (b) | 55.43 (b) | 0.932 | − | 2.840 (b) | 3.994 (b) |
| 4 | (n,inelastic) | ( E-thr = 60.40 keV ) | 585.6 (mb) | 2.457 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.477 MeV ) | 1.859 (b) | 10.78 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.43 MeV ) | − | 1.534 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 135.8 (nb) | 47.82 (μb) | 20.44 (nb) |
| 24 | (n,2na) | ( E-thr = 5.552 MeV ) | 90.29 (nb) | 208.4e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.671 MeV ) | 57.30 (μb) | 31.48 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.92 MeV ) | 1.714e-15 (b) | 72.22e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.16 MeV ) | − | 2.603e-12 (b) | |||
| 102 | (n,γ) | 60.74 (kb) | 50.69 (kb) | 0.835 | 1.561 (kb) | 1.002 (mb) | 221.9 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 77.62 (μb) | 6.978 (mb) | 4.741 (μb) |
| 104 | (n,d) | ( E-thr = 5.432 MeV ) | 610.9 (μb) | 125.3 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.618 MeV ) | 10.94 (μb) | 4.309 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.413 MeV ) | 102.2e-15 (b) | 85.78e-15 (b) | |||
| 107 | (n,a) | 81.54 (μb) | 68.12 (μb) | 0.835 | 13.75 (μb) | 1.863 (mb) | 905.4 (nb) |
|
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 :
|