| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 12.78 (kb) | 11.82 (kb) | 0.925 | − | 5.064 (b) | 6.546 (b) |
| 2 | (n,elastic) | 29.09 (b) | 29.36 (b) | 1.009 | − | 3.295 (b) | 4.236 (b) |
| 4 | (n,inelastic) | ( E-thr = 48.82 keV ) | 257.5 (mb) | 1.786 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.352 MeV ) | 1.498 (b) | 8.350 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.38 MeV ) | − | 6.669 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.255 (μb) | 400.7 (μb) | 157.1 (nb) |
| 28 | (n,np) | ( E-thr = 5.641 MeV ) | 829.7 (μb) | 187.3 (nb) | |||
| 32 | (n,nd) | ( E-thr = 8.954 MeV ) | 306.4 (nb) | 16.85 (nb) | |||
| 33 | (n,nt) | ( E-thr = 10.77 MeV ) | 2.856e-15 (b) | 571.5e-12 (b) | |||
| 102 | (n,γ) | 12.75 (kb) | 11.79 (kb) | 0.925 | 2.170 (kb) | 1.001 (mb) | 511.9 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 166.4 (μb) | 6.593 (mb) | 9.687 (μb) |
| 104 | (n,d) | ( E-thr = 3.315 MeV ) | 2.213 (mb) | 463.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 2.727 MeV ) | 440.1 (μb) | 95.85 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.231 MeV ) | 931.3e-15 (b) | 11.67e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 94.58 (μb) | 2.418 (mb) | 8.662 (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 :
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