80-Hg-204

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 29.90 (b) 33.76 (b) 1.129 5.297 (b) 6.658 (b)
elastic 29.47 (b) 33.28 (b) 1.129 2.834 (b) 5.288 (b)
inelastic ( E-thr = 438.7 keV ) 321.1 (mb) 1.357 (b)
(n,2n) ( E-thr = 7.528 MeV ) 2.137 (b) 5.199 (mb)
(n,3n) ( E-thr = 13.55 MeV ) 1.531 (mb) 7.510 (μb)
(n,na) ( E-thr = 503.4 keV ) 352.7 (nb) 238.3e-12 (b)
(n,np) ( E-thr = 9.251 MeV ) 38.81 (nb) 1.174 (nb)
capture 431.6 (mb) 478.9 (mb) 1.110 2.725 (b) 290.3 (nb) 8.517 (mb)
(n,p) ( E-thr = 3.732 MeV ) 282.5 (μb) 84.22 (nb)
(n,d) ( E-thr = 7.015 MeV ) 12.99 (μb) 12.02 (nb)
(n,a) 0.000 (b) 0.000 (b) 13.84 (nb) 7.157 (μb) 2.565 (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)
 .