41-Nb-95

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 12.77 (b) 13.53 (b) 1.060 4.001 (b) 5.980 (b)
elastic 5.731 (b) 6.470 (b) 1.129 2.235 (b) 4.806 (b)
inelastic ( E-thr = 238.2 keV ) 253.3 (mb) 1.049 (b)
(n,2n) ( E-thr = 8.579 MeV ) 1.480 (b) 2.193 (mb)
(n,3n) ( E-thr = 15.88 MeV ) 823.9 (nb)
(n,na) ( E-thr = 2.892 MeV ) 1.204 (mb) 275.6 (nb)
(n,np) ( E-thr = 6.876 MeV ) 2.798 (mb) 633.5 (nb)
(n,nd) ( E-thr = 12.94 MeV ) 0.000 (b) 551.2e-12 (b)
capture 7.003 (b) 7.006 (b) 1.001 58.68 (b) 788.6 (μb) 121.3 (mb)
(n,p) ( E-thr = 345.4 keV ) 16.79 (mb) 47.90 (μb)
(n,d) ( E-thr = 4.628 MeV ) 1.972 (mb) 417.5 (nb)
(n,t) ( E-thr = 6.613 MeV ) 85.32 (μb) 25.33 (nb)
(n,He-3) ( E-thr = 9.519 MeV ) 0.000 (b) 321.5e-15 (b)
(n,a) 0.000 (b) 0.000 (b) 413.8 (μb) 10.65 (mb) 21.30 (μb)
MT = 203 ( E-thr = 345.4 keV ) 19.59 (mb) 48.53 (μb)
MT = 204 ( E-thr = 4.628 MeV ) 1.972 (mb) 418.1 (nb)
MT = 205 ( E-thr = 6.613 MeV ) 85.32 (μb) 25.33 (nb)
MT = 206 ( E-thr = 9.519 MeV ) 0.000 (b) 321.5e-15 (b)
MT = 207 0.000 (b) 0.000 (b) 413.9 (μb) 11.85 (mb) 21.58 (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)
 .