| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 38.17 (b) | 38.26 (b) | 1.002 | − | 5.381 (b) | 6.848 (b) |
| 2 | (n,elastic) | 74.24 (mb) | 86.43 (mb) | 1.164 | − | 2.950 (b) | 4.423 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 398.5 (mb) | 2.384 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.230 MeV ) | 1.996 (b) | 9.586 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.02 MeV ) | 36.06 (mb) | 20.85 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 35.51 (nb) | 15.86 (μb) | 7.731 (nb) |
| 24 | (n,2na) | ( E-thr = 5.624 MeV ) | 2.782 (nb) | 4.371e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.448 MeV ) | 1.517 (μb) | 6.643 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.87 MeV ) | 10.29e-30 (b) | 3.891e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.23 MeV ) | 6.841e-24 (b) | 1.081e-12 (b) | |||
| 102 | (n,γ) | 38.10 (b) | 38.17 (b) | 1.002 | 474.1 (b) | 771.7 (μb) | 30.13 (mb) |
| 103 | (n,p) | ( E-thr = 3.136 MeV ) | 1.182 (mb) | 282.4 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.211 MeV ) | 62.24 (μb) | 21.95 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.582 MeV ) | 1.071 (μb) | 1.052 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.911 MeV ) | 4.492e-21 (b) | 54.59e-18 (b) | |||
| 107 | (n,a) | 2.686 (nb) | 2.688 (nb) | 1.001 | 1.339 (μb) | 377.6 (μb) | 153.9 (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 :
|