80-Hg-200

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 16.00 (b) 17.88 (b) 1.117 5.251 (b) 6.638 (b)
elastic 14.56 (b) 16.44 (b) 1.129 2.741 (b) 5.039 (b)
inelastic ( E-thr = 369.8 keV ) 356.8 (mb) 1.575 (b)
(n,2n) ( E-thr = 8.069 MeV ) 2.146 (b) 4.138 (mb)
(n,3n) ( E-thr = 14.75 MeV ) 2.546 (μb)
(n,na) 0.000 (b) 0.000 (b) 670.3e-12 (b) 3.183 (μb) 1.317 (nb)
(n,np) ( E-thr = 7.738 MeV ) 7.351 (μb) 9.962 (nb)
capture 1.443 (b) 1.444 (b) 1.001 2.576 (b) 257.4 (nb) 21.07 (mb)
(n,p) ( E-thr = 1.424 MeV ) 2.139 (mb) 982.1 (nb)
(n,d) ( E-thr = 5.502 MeV ) 205.8 (μb) 61.72 (nb)
(n,a) 0.000 (b) 0.000 (b) 579.3 (nb) 89.52 (μb) 52.98 (nb)

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)
 .