76-Os-184

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 3.012 (kb) 3.017 (kb) 1.002 5.123 (b) 6.644 (b)
elastic 10.03 (b) 11.32 (b) 1.129 2.566 (b) 4.143 (b)
inelastic ( E-thr = 105.0 keV ) 612.9 (mb) 2.296 (b)
(n,2n) ( E-thr = 8.712 MeV ) 1.923 (b) 2.090 (mb)
(n,3n) ( E-thr = 15.88 MeV ) 564.1 (nb)
(n,na) 19.78e-27 (b) 20.09e-27 (b) 0.000 64.54 (μb) 1.190 (mb) 2.336 (μb)
(n,2na) ( E-thr = 5.479 MeV ) 97.46 (nb) 658.3e-12 (b)
(n,np) ( E-thr = 5.766 MeV ) 591.8 (μb) 164.4 (nb)
(n,nd) ( E-thr = 12.01 MeV ) 1.246e-18 (b) 7.641e-12 (b)
(n,n He-3) ( E-thr = 14.25 MeV ) 544.9e-15 (b)
capture 3.001 (kb) 3.003 (kb) 1.001 1.368 (kb) 1.052 (mb) 203.5 (mb)
(n,p) 0.000 (b) 0.000 (b) 206.9 (μb) 11.88 (mb) 11.70 (μb)
(n,d) ( E-thr = 3.529 MeV ) 1.031 (mb) 235.0 (nb)
(n,t) ( E-thr = 5.718 MeV ) 5.977 (μb) 2.871 (nb)
(n,He-3) ( E-thr = 2.884 MeV ) 53.55e-12 (b) 601.1e-15 (b)
(n,a) 5.002 (mb) 5.005 (mb) 1.001 7.875 (mb) 7.620 (mb) 75.60 (μb)

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)
 .