5-B-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 768.5 (b) 769.5 (b) 1.001 1.424 (b) 2.468 (b)
elastic 4.679 (b) 5.278 (b) 1.128 936.5 (mb) 2.333 (b)
nonelastic 763.7 (b) 764.1 (b) 1.001 342.5 (b) 104.3 (mb) 111.7 (mb)
inelastic ( E-thr = 790.7 keV ) 292.4 (mb) 37.17 (mb)
(n,2n) ( E-thr = 8.980 MeV ) 6.472 (mb) 7.008 (μb)
(n,na) ( E-thr = 9.460 MeV ) 80.90 (mb) 22.06 (μb)
(n,np) ( E-thr = 12.26 MeV ) 884.7 (μb) 169.0 (nb)
(n,n2a) ( E-thr = 12.15 MeV ) 14.38 (mb) 2.960 (μb)
(n,nd) ( E-thr = 17.27 MeV ) 1.069 (nb)
(n,nt) ( E-thr = 12.25 MeV ) 598.7 (μb) 136.1 (nb)
capture 103.6 (mb) 103.6 (mb) 1.001 46.83 (mb) 4.234 (μb) 19.52 (μb)
(n,p) 597.0 (μb) 597.4 (μb) 1.001 13.07 (mb) 10.69 (mb) 3.034 (mb)
(n,d) ( E-thr = 4.801 MeV ) 16.85 (mb) 251.8 (μb)
(n,t) ( E-thr = 10.44 MeV ) 11.98 (mb) 2.758 (μb)
(n,a) 763.6 (b) 764.0 (b) 1.001 342.4 (b) 34.88 (mb) 86.73 (mb)
(n,t2a) 1.598 (mb) 1.599 (mb) 1.001 39.95 (mb) 18.84 (mb) 7.593 (mb)
MT = 600 597.0 (μb) 597.4 (μb) 1.001 7.057 (mb) 669.4 (μb) 2.331 (mb)
MT = 601 ( E-thr = 3.460 MeV ) 2.786 (mb) 661.1 (μb)
MT = 602 ( E-thr = 6.311 MeV ) 1.417 (mb) 17.39 (μb)
MT = 603 ( E-thr = 6.313 MeV ) 937.2 (μb) 10.23 (μb)
MT = 604 ( E-thr = 6.554 MeV ) 300.4 (μb) 2.679 (μb)
MT = 605 ( E-thr = 6.646 MeV ) 1.355 (mb) 11.16 (μb)
MT = 650 ( E-thr = 4.801 MeV ) 5.586 (mb) 235.4 (μb)
MT = 651 ( E-thr = 7.476 MeV ) 3.891 (mb) 13.16 (μb)
MT = 800 48.12 (b) 48.14 (b) 1.001 21.71 (b) 3.152 (mb) 36.67 (mb)
MT = 801 715.5 (b) 715.9 (b) 1.001 320.7 (b) 6.590 (mb) 50.01 (mb)

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).

Maxwellian Average :
σmacs(T) =
2
 
 
π
EU
 
EL
σ(E,T) ⋅ E ⋅ exp (
E
  
kBT
) dE
 
EU
 
EL
E ⋅ exp (
E
  
kBT
) dE
,
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 :
σri(T) =
EU
 
EL
σ(E,T) ⋅
1
 
E
dE ,
with  EL = 0.5 eV  and  EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
σfacs(T) =
EU
 
EL
σ(E,T) ⋅
 
4
 
πa3b
⋅ exp (
ab E
     
4 a
) ⋅ sinh
 
bE
dE
 
EU
 
EL
 
4
 
πa3b
⋅ exp (
ab E
     
4 a
) ⋅ sinh
 
bE
dE
,
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 :
g(T) =
σmacs(T)
 
σ(0.0253 eV,T)
 .