| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.414 (b) | 3.540 (b) | 1.037 | − | 5.308 (b) | 6.762 (b) |
| 2 | (n,elastic) | 1.000 (b) | 1.128 (b) | 1.128 | − | 2.885 (b) | 5.249 (b) |
| 4 | (n,inelastic) | ( E-thr = 554.8 keV ) | 737.9 (mb) | 1.420 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.202 MeV ) | 1.669 (b) | 3.043 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.60 MeV ) | − | 5.624 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 117.3 (μb) | 2.860 (mb) | 4.191 (μb) |
| 28 | (n,np) | ( E-thr = 7.640 MeV ) | 210.2 (μb) | 105.9 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.04 MeV ) | 0.000 (b) | 227.6e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.10 MeV ) | 0.000 (b) | 28.30e-12 (b) | |||
| 102 | (n,γ) | 2.414 (b) | 2.412 (b) | 0.999 | 45.16 (b) | 1.113 (mb) | 83.87 (mb) |
| 103 | (n,p) | ( E-thr = 1.694 MeV ) | 6.643 (mb) | 2.931 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.315 MeV ) | 1.287 (mb) | 356.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.814 MeV ) | 118.7 (μb) | 57.08 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.304 MeV ) | 1.060e-12 (b) | 12.77e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 170.9 (μb) | 3.475 (mb) | 18.01 (μb) |
|
These cross sections are calculated from JENDL-3.2 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 :
|