| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.366 (b) | 7.035 (b) | 1.105 | − | 5.078 (b) | 6.264 (b) |
| 2 | (n,elastic) | 5.184 (b) | 5.852 (b) | 1.129 | − | 2.886 (b) | 5.492 (b) |
| 4 | (n,inelastic) | ( E-thr = 222.7 keV ) | 479.0 (mb) | 751.0 (mb) | |||
| 16 | (n,2n) | ( E-thr = 6.954 MeV ) | 1.707 (b) | 2.493 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.63 MeV ) | − | 1.907 (μb) | |||
| 22 | (n,na) | ( E-thr = 567.3 keV ) | 132.0 (μb) | 41.74 (nb) | |||
| 28 | (n,np) | ( E-thr = 7.088 MeV ) | 21.86 (μb) | 19.00 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.94 MeV ) | 0.000 (b) | 39.98e-12 (b) | |||
| 102 | (n,γ) | 1.183 (b) | 1.183 (b) | 1.000 | 10.24 (b) | 1.284 (mb) | 17.18 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 26.78 (μb) | 2.681 (mb) | 1.718 (μb) |
| 104 | (n,d) | ( E-thr = 4.760 MeV ) | 210.7 (μb) | 65.37 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.705 MeV ) | 4.496 (μb) | 6.465 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.331 MeV ) | 485.3e-15 (b) | 498.6e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 24.29 (μb) | 1.712 (mb) | 1.963 (μb) |
| 111 | (n,2p) | ( E-thr = 5.156 MeV ) | 14.67e-15 (b) | 60.65e-15 (b) | |||
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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 :
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