40-Zr-92

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
(n,total) 7.379 (b) 8.302 (b) 1.125 3.842 (b) 5.712 (b)
(n,elastic) 7.150 (b) 8.072 (b) 1.129 2.111 (b) 4.708 (b)
(n,inelastic) ( E-thr = 944.8 keV ) 380.7 (mb) 994.9 (mb)
(n,2n) ( E-thr = 8.730 MeV ) 1.324 (b) 1.601 (mb)
(n,3n) ( E-thr = 16.01 MeV ) 321.0 (nb)
(n,na) ( E-thr = 3.000 MeV ) 1.561 (mb) 350.9 (nb)
(n,np) ( E-thr = 9.503 MeV ) 676.1 (μb) 196.8 (nb)
(n,nd) ( E-thr = 15.20 MeV ) 35.63e-12 (b)
(n,nt) ( E-thr = 15.88 MeV ) 1.031e-12 (b)
(n,γ) 229.2 (mb) 229.4 (mb) 1.001 652.0 (mb) 560.2 (μb) 6.813 (mb)
(n,p) ( E-thr = 2.883 MeV ) 19.58 (mb) 21.02 (μb)
(n,d) ( E-thr = 7.168 MeV ) 692.2 (μb) 180.7 (nb)
(n,t) ( E-thr = 8.947 MeV ) 27.46 (μb) 16.57 (nb)
(n,a) 0.000 (b) 0.000 (b) 983.5 (μb) 9.217 (mb) 55.62 (μb)
MT = 203 ( E-thr = 2.883 MeV ) 20.25 (mb) 21.28 (μb)
MT = 204 ( E-thr = 7.168 MeV ) 692.2 (μb) 181.2 (nb)
MT = 205 ( E-thr = 8.947 MeV ) 27.46 (μb) 16.60 (nb)
MT = 207 0.000 (b) 0.000 (b) 985.1 (μb) 10.78 (mb) 55.99 (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)
 .