| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.646 (b) | 7.360 (b) | 1.107 | − | 4.480 (b) | 5.579 (b) |
| 2 | (n,elastic) | 5.559 (b) | 6.273 (b) | 1.128 | − | 2.446 (b) | 4.463 (b) |
| 4 | (n,inelastic) | ( E-thr = 638.9 keV ) | 970.6 (mb) | 982.3 (mb) | |||
| 16 | (n,2n) | ( E-thr = 10.44 MeV ) | 966.9 (mb) | 322.1 (μb) | |||
| 17 | (n,3n) | ( E-thr = 18.44 MeV ) | − | 33.00 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.294 MeV ) | 8.694 (mb) | 2.411 (μb) | |||
| 28 | (n,np) | ( E-thr = 8.217 MeV ) | 13.01 (mb) | 2.252 (μb) | |||
| 32 | (n,nd) | ( E-thr = 15.53 MeV ) | − | 2.814e-12 (b) | |||
| 102 | (n,γ) | 1.087 (b) | 1.087 (b) | 1.000 | 27.16 (b) | 3.151 (mb) | 132.7 (mb) |
| 103 | (n,p) | ( E-thr = 874.6 keV ) | 59.38 (mb) | 380.8 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.885 MeV ) | 392.5 (μb) | 105.9 (nb) | |||
| 105 | (n,t) | ( E-thr = 9.282 MeV ) | 1.563 (μb) | 5.746 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.252 MeV ) | 199.5e-12 (b) | 14.55e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 2.742 (mb) | 12.08 (mb) | 188.3 (μb) |
| 111 | (n,2p) | ( E-thr = 7.460 MeV ) | 38.94 (nb) | 147.4e-12 (b) | |||
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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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