| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 88.51 (b) | 88.43 (b) | 0.999 | − | 4.455 (b) | 5.809 (b) |
| 2 | (n,elastic) | 6.498 (b) | 7.321 (b) | 1.127 | − | 2.590 (b) | 3.829 (b) |
| 4 | (n,inelastic) | 12.21 (mb) | 12.22 (mb) | 1.001 | 6.110 (b) | 235.8 (mb) | 1.781 (b) |
| 16 | (n,2n) | ( E-thr = 6.753 MeV ) | 1.603 (b) | 6.330 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.03 MeV ) | − | 469.7 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.438 MeV ) | 44.14 (μb) | 16.53 (nb) | |||
| 24 | (n,2na) | ( E-thr = 10.09 MeV ) | 4.226e-15 (b) | 2.443e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.090 MeV ) | 2.843 (mb) | 578.7 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.05 MeV ) | 4.636 (nb) | 1.693 (nb) | |||
| 33 | (n,nt) | ( E-thr = 14.05 MeV ) | − | 7.821e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.30 MeV ) | 161.3e-18 (b) | 284.1e-12 (b) | |||
| 102 | (n,γ) | 82.00 (b) | 81.10 (b) | 0.989 | 74.47 (b) | 954.2 (μb) | 190.9 (mb) |
| 103 | (n,p) | 707.8e-12 (b) | 708.2e-12 (b) | 1.001 | 800.7 (μb) | 19.71 (mb) | 39.44 (μb) |
| 104 | (n,d) | ( E-thr = 4.845 MeV ) | 1.625 (mb) | 341.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.740 MeV ) | 79.30 (μb) | 17.96 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.268 MeV ) | 84.75e-15 (b) | 353.8e-15 (b) | |||
| 107 | (n,a) | 1.486 (μb) | 1.487 (μb) | 1.001 | 127.2 (μb) | 3.142 (mb) | 6.686 (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 :
|