40-Zr-94

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
(n,total) 6.218 (b) 7.014 (b) 1.128 3.842 (b) 5.710 (b)
(n,elastic) 6.167 (b) 6.963 (b) 1.129 2.140 (b) 4.697 (b)
(n,inelastic) ( E-thr = 928.6 keV ) 297.0 (mb) 1.004 (b)
(n,2n) ( E-thr = 8.279 MeV ) 1.396 (b) 2.654 (mb)
(n,3n) ( E-thr = 15.11 MeV ) 1.143 (μb)
(n,na) ( E-thr = 3.791 MeV ) 245.8 (μb) 58.27 (nb)
(n,np) ( E-thr = 10.44 MeV ) 6.552 (μb) 9.436 (nb)
(n,nd) ( E-thr = 15.67 MeV ) 7.433e-12 (b)
(n,γ) 50.69 (mb) 50.72 (mb) 1.001 287.1 (mb) 550.1 (μb) 4.998 (mb)
(n,p) ( E-thr = 4.143 MeV ) 8.114 (mb) 3.021 (μb)
(n,d) ( E-thr = 8.107 MeV ) 29.82 (μb) 23.85 (nb)
(n,t) ( E-thr = 9.416 MeV ) 8.044 (μb) 9.113 (nb)
(n,a) 0.000 (b) 0.000 (b) 115.2 (μb) 4.171 (mb) 5.698 (μb)
MT = 203 ( E-thr = 4.143 MeV ) 8.120 (mb) 3.035 (μb)
MT = 204 ( E-thr = 8.107 MeV ) 29.82 (μb) 23.90 (nb)
MT = 205 ( E-thr = 9.416 MeV ) 8.044 (μb) 9.113 (nb)
MT = 207 0.000 (b) 0.000 (b) 115.2 (μb) 4.417 (mb) 5.758 (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)
 .