| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 127.5 (b) | 129.4 (b) | 1.015 | − | 5.220 (b) | 6.881 (b) |
| 2 | (n,elastic) | 3.342 (b) | 3.752 (b) | 1.123 | − | 2.704 (b) | 4.113 (b) |
| 4 | (n,inelastic) | ( E-thr = 73.90 keV ) | 351.1 (mb) | 2.679 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.310 MeV ) | 2.164 (b) | 17.10 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.56 MeV ) | − | 5.502 (μb) | |||
| 22 | (n,na) | ( E-thr = 244.4 keV ) | 40.82 (μb) | 16.97 (nb) | |||
| 24 | (n,2na) | ( E-thr = 6.224 MeV ) | 5.626 (nb) | 42.61e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.044 MeV ) | 13.33 (μb) | 15.81 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.13 MeV ) | 17.75e-18 (b) | 29.20e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.58 MeV ) | 87.94e-27 (b) | 241.9e-15 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.37 MeV ) | − | 344.6e-15 (b) | |||
| 102 | (n,γ) | 124.2 (b) | 125.6 (b) | 1.012 | 1.491 (kb) | 1.069 (mb) | 70.90 (mb) |
| 103 | (n,p) | ( E-thr = 1.009 MeV ) | 3.011 (mb) | 1.069 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.805 MeV ) | 264.8 (μb) | 58.70 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.833 MeV ) | 4.832 (μb) | 2.551 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.782 MeV ) | 12.23e-18 (b) | 3.487e-15 (b) | |||
| 107 | (n,a) | 4.797 (μb) | 4.799 (μb) | 1.001 | 49.94 (μb) | 1.262 (mb) | 891.1 (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 :
|