54-Xe-129

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 27.08 (b) 27.77 (b) 1.026 4.837 (b) 5.975 (b)
elastic 5.065 (b) 5.715 (b) 1.128 2.723 (b) 3.922 (b)
inelastic ( E-thr = 39.89 keV ) 244.6 (mb) 2.004 (b)
(n,2n) ( E-thr = 6.963 MeV ) 1.841 (b) 6.056 (mb)
(n,3n) ( E-thr = 16.65 MeV ) 287.8 (nb)
(n,na) ( E-thr = 2.117 MeV ) 139.8 (μb) 42.50 (nb)
(n,np) ( E-thr = 8.313 MeV ) 760.7 (μb) 274.6 (nb)
(n,nd) ( E-thr = 12.95 MeV ) 878.1e-21 (b) 93.56e-12 (b)
capture 22.01 (b) 22.05 (b) 1.002 305.4 (b) 1.018 (mb) 42.12 (mb)
(n,p) 0.000 (b) 0.000 (b) 854.2 (μb) 26.34 (mb) 55.65 (μb)
(n,d) ( E-thr = 6.071 MeV ) 1.250 (mb) 261.2 (nb)
(n,t) ( E-thr = 6.644 MeV ) 18.44 (μb) 7.335 (nb)
(n,He-3) ( E-thr = 7.333 MeV ) 1.200e-12 (b) 429.1e-15 (b)
(n,a) 0.000 (b) 0.000 (b) 132.4 (μb) 3.048 (mb) 14.06 (μb)
MT = 203 0.000 (b) 0.000 (b) 854.2 (μb) 27.10 (mb) 55.92 (μb)
MT = 204 ( E-thr = 6.071 MeV ) 1.250 (mb) 261.3 (nb)
MT = 205 ( E-thr = 6.644 MeV ) 18.44 (μb) 7.335 (nb)
MT = 206 ( E-thr = 7.333 MeV ) 1.200e-12 (b) 429.1e-15 (b)
MT = 207 0.000 (b) 0.000 (b) 132.5 (μb) 3.188 (mb) 14.10 (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)
 .