| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.595 (b) | 3.747 (b) | 1.042 | − | 5.183 (b) | 6.700 (b) |
| 2 | (n,elastic) | 1.206 (b) | 1.361 (b) | 1.129 | − | 2.907 (b) | 4.820 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 362.6 (mb) | 1.795 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.197 MeV ) | 1.898 (b) | 3.729 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.58 MeV ) | − | 1.939 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 6.673 (μb) | 572.6 (μb) | 340.9 (nb) |
| 24 | (n,2na) | ( E-thr = 5.871 MeV ) | 1.229 (μb) | 1.270 (nb) | |||
| 25 | (n,3na) | ( E-thr = 12.04 MeV ) | 164.0e-36 (b) | 458.6e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.635 MeV ) | 492.7 (μb) | 144.4 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.11 MeV ) | 24.61e-21 (b) | 19.96e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.11 MeV ) | 8.511e-24 (b) | 1.638e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 15.35 MeV ) | − | 1.380e-12 (b) | |||
| 102 | (n,γ) | 2.389 (b) | 2.386 (b) | 0.999 | 43.49 (b) | 964.0 (μb) | 82.74 (mb) |
| 103 | (n,p) | ( E-thr = 1.699 MeV ) | 11.59 (mb) | 6.161 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.395 MeV ) | 654.1 (μb) | 139.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.807 MeV ) | 7.154 (μb) | 3.583 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.307 MeV ) | 2.121e-12 (b) | 288.0e-15 (b) | |||
| 107 | (n,a) | 12.77 (μb) | 12.77 (μb) | 1.001 | 251.4 (μb) | 1.733 (mb) | 21.21 (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 :
|