66-Dy-158

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 50.61 (b) 51.14 (b) 1.010 5.160 (b) 6.795 (b)
2 (n,elastic) 7.665 (b) 8.639 (b) 1.127 2.579 (b) 4.361 (b)
4 (n,inelastic) ( E-thr = 99.55 keV ) 612.2 (mb) 2.246 (b)
16 (n,2n) ( E-thr = 9.113 MeV ) 1.955 (b) 1.673 (mb)
17 (n,3n) ( E-thr = 16.13 MeV ) 481.9 (nb)
22 (n,na) 0.000 (b) 0.000 (b) 6.837 (μb) 721.0 (μb) 375.2 (nb)
24 (n,2na) ( E-thr = 8.070 MeV ) 4.049e-12 (b) 36.07e-12 (b)
28 (n,np) ( E-thr = 6.975 MeV ) 588.8 (μb) 152.5 (nb)
32 (n,nd) ( E-thr = 13.54 MeV ) 3.675e-21 (b) 3.016e-12 (b)
102 (n,γ) 42.95 (b) 42.50 (b) 0.990 194.7 (b) 1.396 (mb) 186.7 (mb)
103 (n,p) ( E-thr = 153.5 keV ) 11.91 (mb) 11.54 (μb)
104 (n,d) ( E-thr = 4.736 MeV ) 753.9 (μb) 159.5 (nb)
105 (n,t) ( E-thr = 7.239 MeV ) 1.297 (μb) 1.410 (nb)
106 (n,He-3) ( E-thr = 4.760 MeV ) 3.539e-12 (b) 279.7e-15 (b)
107 (n,a) 14.65 (μb) 14.66 (μb) 1.001 220.3 (μb) 1.780 (mb) 19.02 (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).

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)
 .