80-Hg-199

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 2.217 (kb) 2.201 (kb) 0.993 5.239 (b) 6.662 (b)
elastic 66.70 (b) 74.09 (b) 1.111 2.762 (b) 4.607 (b)
inelastic ( E-thr = 159.2 keV ) 280.7 (mb) 2.017 (b)
(n,2n) ( E-thr = 6.682 MeV ) 2.189 (b) 8.832 (mb)
(n,3n) ( E-thr = 15.03 MeV ) 3.166 (μb)
(n,na) 0.000 (b) 0.000 (b) 2.730 (nb) 6.475 (μb) 2.747 (nb)
(n,np) ( E-thr = 7.276 MeV ) 16.21 (μb) 17.09 (nb)
capture 2.150 (kb) 2.127 (kb) 0.989 438.7 (b) 196.3 (nb) 29.61 (mb)
(n,p) 0.000 (b) 0.000 (b) 43.50 (μb) 3.584 (mb) 2.543 (μb)
(n,d) ( E-thr = 5.040 MeV ) 272.9 (μb) 78.64 (nb)
(n,a) 0.000 (b) 0.000 (b) 9.934 (μb) 471.9 (μb) 569.5 (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)
 .