MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
---|---|---|---|---|---|---|---|
1 | (n,total) | 10.67 (kb) | 15.82 (kb) | 1.483 | − | 5.088 (b) | 6.543 (b) |
2 | (n,elastic) | 19.37 (b) | 49.00 (b) | 2.530 | − | 2.797 (b) | 4.045 (b) |
4 | (n,inelastic) | 84.50 (mb) | 84.44 (mb) | 0.999 | 9.305 (b) | 216.5 (mb) | 2.387 (b) |
16 | (n,2n) | ( E-thr = 5.797 MeV ) | 2.049 (b) | 19.74 (mb) | |||
17 | (n,3n) | ( E-thr = 13.51 MeV ) | 2.674 (mb) | 11.58 (μb) | |||
22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 2.335 (μb) | 379.3 (μb) | 195.1 (nb) |
24 | (n,2na) | ( E-thr = 4.185 MeV ) | 64.24 (μb) | 9.387 (nb) | |||
28 | (n,np) | ( E-thr = 5.911 MeV ) | 1.898 (mb) | 472.8 (nb) | |||
32 | (n,nd) | ( E-thr = 9.000 MeV ) | 650.1 (nb) | 2.752 (nb) | |||
33 | (n,nt) | ( E-thr = 10.32 MeV ) | 684.6e-12 (b) | 358.4e-12 (b) | |||
41 | (n,2np) | ( E-thr = 11.24 MeV ) | 2.219 (nb) | 1.719 (nb) | |||
102 | (n,γ) | 10.65 (kb) | 15.77 (kb) | 1.481 | 4.196 (kb) | 842.6 (μb) | 91.80 (mb) |
103 | (n,p) | 61.92e-12 (b) | 62.63e-12 (b) | 1.011 | 264.4 (μb) | 17.17 (mb) | 13.84 (μb) |
104 | (n,d) | ( E-thr = 3.671 MeV ) | 1.644 (mb) | 364.2 (nb) | |||
105 | (n,t) | ( E-thr = 2.700 MeV ) | 234.0 (μb) | 49.15 (nb) | |||
106 | (n,He-3) | ( E-thr = 6.927 MeV ) | 2.847e-12 (b) | 341.9e-15 (b) | |||
107 | (n,a) | 704.5 (mb) | 704.0 (mb) | 0.999 | 195.7 (mb) | 3.328 (mb) | 34.97 (μb) |
108 | (n,2a) | 836.7e-18 (b) | 846.6e-18 (b) | 1.012 | 401.9e-12 (b) | 138.2 (nb) | 50.38e-12 (b) |
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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