63-Eu-154

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 1.854 (kb) 2.221 (kb) 1.198 5.028 (b) 6.575 (b)
2 (n,elastic) 6.600 (b) 7.417 (b) 1.124 3.267 (b) 4.390 (b)
4 (n,inelastic) ( E-thr = 68.65 keV ) 213.4 (mb) 1.655 (b)
16 (n,2n) ( E-thr = 6.481 MeV ) 1.541 (b) 10.94 (mb)
17 (n,3n) ( E-thr = 15.09 MeV ) 2.990 (μb)
22 (n,na) ( E-thr = 601.8 keV ) 55.25 (μb) 20.18 (nb)
28 (n,np) ( E-thr = 6.505 MeV ) 279.1 (μb) 77.72 (nb)
32 (n,nd) ( E-thr = 10.09 MeV ) 7.643e-12 (b) 5.531 (nb)
33 (n,nt) ( E-thr = 12.18 MeV ) 0.000 (b) 79.64e-12 (b)
102 (n,γ) 1.847 (kb) 2.213 (kb) 1.198 1.176 (kb) 1.001 (mb) 516.1 (mb)
103 (n,p) 0.000 (b) 0.000 (b) 44.74 (μb) 3.793 (mb) 2.704 (μb)
104 (n,d) ( E-thr = 4.180 MeV ) 939.6 (μb) 211.3 (nb)
105 (n,t) ( E-thr = 3.865 MeV ) 89.26 (μb) 31.50 (nb)
107 (n,a) 0.000 (b) 0.000 (b) 14.55 (μb) 1.394 (mb) 1.040 (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)
 .