| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 62.14 (b) | 63.19 (b) | 1.017 | − | 5.230 (b) | 6.836 (b) |
| 2 | (n,elastic) | 5.490 (b) | 6.184 (b) | 1.126 | − | 2.582 (b) | 4.498 (b) |
| 4 | (n,inelastic) | ( E-thr = 87.34 keV ) | 674.3 (mb) | 2.154 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.630 MeV ) | 1.971 (b) | 2.327 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.51 MeV ) | − | 1.561 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 589.3 (nb) | 88.44 (μb) | 42.09 (nb) |
| 24 | (n,2na) | ( E-thr = 8.148 MeV ) | 960.4e-15 (b) | 6.621e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.475 MeV ) | 54.36 (μb) | 30.78 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.42 MeV ) | 3.897e-27 (b) | 1.912e-12 (b) | |||
| 102 | (n,γ) | 56.65 (b) | 57.01 (b) | 1.006 | 1.109 (kb) | 945.6 (μb) | 180.3 (mb) |
| 103 | (n,p) | ( E-thr = 1.059 MeV ) | 5.686 (mb) | 2.857 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.236 MeV ) | 345.1 (μb) | 73.03 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.124 MeV ) | 1.553 (μb) | 1.490 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.878 MeV ) | 21.00e-15 (b) | 39.00e-15 (b) | |||
| 107 | (n,a) | 944.3 (nb) | 944.8 (nb) | 1.001 | 40.75 (μb) | 1.249 (mb) | 2.919 (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 :
|