66-Dy-159

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 607.8 (b) 610.5 (b) 1.005 5.181 (b) 6.846 (b)
2 (n,elastic) 7.274 (b) 8.214 (b) 1.129 2.631 (b) 3.998 (b)
4 (n,inelastic) ( E-thr = 56.99 keV ) 482.0 (mb) 2.361 (b)
16 (n,2n) ( E-thr = 6.876 MeV ) 2.049 (b) 9.007 (mb)
17 (n,3n) ( E-thr = 15.99 MeV ) 886.3 (nb)
22 (n,na) 0.000 (b) 0.000 (b) 905.6 (nb) 287.2 (μb) 107.7 (nb)
24 (n,2na) ( E-thr = 5.994 MeV ) 29.71 (nb) 210.9e-12 (b)
28 (n,np) ( E-thr = 7.030 MeV ) 585.3 (μb) 159.3 (nb)
32 (n,nd) ( E-thr = 11.61 MeV ) 55.45e-15 (b) 92.41e-12 (b)
41 (n,2np) ( E-thr = 13.85 MeV ) 1.240e-21 (b) 34.35e-12 (b)
102 (n,γ) 600.2 (b) 600.8 (b) 1.001 3.114 (kb) 2.136 (mb) 477.0 (mb)
103 (n,p) 1.600e-12 (b) 1.623e-12 (b) 1.015 311.5 (μb) 15.11 (mb) 17.78 (μb)
104 (n,d) ( E-thr = 4.791 MeV ) 981.2 (μb) 206.0 (nb)
105 (n,t) ( E-thr = 5.315 MeV ) 14.52 (μb) 5.176 (nb)
106 (n,He-3) ( E-thr = 5.236 MeV ) 7.579e-12 (b) 379.3e-15 (b)
107 (n,a) 3.790 (mb) 3.793 (mb) 1.001 13.47 (mb) 3.721 (mb) 19.36 (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)
 .