68-Er-167

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 644.4 (b) 688.9 (b) 1.069 5.518 (b) 6.819 (b)
2 (n,elastic) 1.338 (b) 1.413 (b) 1.057 2.723 (b) 4.292 (b)
4 (n,inelastic) ( E-thr = 79.80 keV ) 387.9 (mb) 2.425 (b)
16 (n,2n) ( E-thr = 6.474 MeV ) 2.397 (b) 13.27 (mb)
17 (n,3n) ( E-thr = 15.00 MeV ) 2.378 (μb)
22 (n,na) 0.000 (b) 0.000 (b) 102.9 (nb) 22.82 (μb) 10.79 (nb)
28 (n,np) ( E-thr = 7.552 MeV ) 40.64 (μb) 29.52 (nb)
32 (n,nd) ( E-thr = 11.60 MeV ) 1.845e-12 (b) 157.6e-12 (b)
102 (n,γ) 643.1 (b) 687.5 (b) 1.069 2.973 (kb) 1.980 (mb) 89.71 (mb)
103 (n,p) ( E-thr = 226.0 keV ) 5.641 (mb) 3.598 (μb)
104 (n,d) ( E-thr = 5.314 MeV ) 516.1 (μb) 110.4 (nb)
105 (n,t) ( E-thr = 5.301 MeV ) 25.93 (μb) 6.757 (nb)
107 (n,a) 0.000 (b) 0.000 (b) 63.32 (μb) 1.697 (mb) 4.194 (μb)

These cross sections are calculated from JENDL-3.3 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).

MT is a number that defines a reaction type. For the relation between MT and reaction type, please see here or refer to the manual of ENDF formats.

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)
 .