63-Eu-152

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 12.78 (kb) 11.82 (kb) 0.925 5.064 (b) 6.546 (b)
2 (n,elastic) 29.09 (b) 29.36 (b) 1.009 3.295 (b) 4.236 (b)
4 (n,inelastic) ( E-thr = 48.82 keV ) 257.5 (mb) 1.786 (b)
16 (n,2n) ( E-thr = 6.352 MeV ) 1.498 (b) 8.350 (mb)
17 (n,3n) ( E-thr = 14.38 MeV ) 6.669 (μb)
22 (n,na) 0.000 (b) 0.000 (b) 1.255 (μb) 400.7 (μb) 157.1 (nb)
28 (n,np) ( E-thr = 5.641 MeV ) 829.7 (μb) 187.3 (nb)
32 (n,nd) ( E-thr = 8.954 MeV ) 306.4 (nb) 16.85 (nb)
33 (n,nt) ( E-thr = 10.77 MeV ) 2.856e-15 (b) 571.5e-12 (b)
102 (n,γ) 12.75 (kb) 11.79 (kb) 0.925 2.170 (kb) 1.001 (mb) 511.9 (mb)
103 (n,p) 0.000 (b) 0.000 (b) 166.4 (μb) 6.593 (mb) 9.687 (μb)
104 (n,d) ( E-thr = 3.315 MeV ) 2.213 (mb) 463.1 (nb)
105 (n,t) ( E-thr = 2.727 MeV ) 440.1 (μb) 95.85 (nb)
106 (n,He-3) ( E-thr = 6.231 MeV ) 931.3e-15 (b) 11.67e-12 (b)
107 (n,a) 0.000 (b) 0.000 (b) 94.58 (μb) 2.418 (mb) 8.662 (μb)

These cross sections are calculated from JENDL-3.2 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)
 .