94-Pu-242

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 27.08 (b) 28.31 (b) 1.045 5.949 (b) 7.932 (b)
2 (n,elastic) 8.314 (b) 9.357 (b) 1.125 2.907 (b) 4.710 (b)
4 (n,inelastic) ( E-thr = 44.73 keV ) 689.2 (mb) 2.004 (b)
16 (n,2n) ( E-thr = 6.336 MeV ) 278.7 (mb) 2.995 (mb)
17 (n,3n) ( E-thr = 11.60 MeV ) 47.03 (mb) 7.447 (μb)
18 (n,fission) 2.100 (mb) 2.117 (mb) 1.008 4.231 (b) 2.027 (b) 1.127 (b)
37 (n,4n) ( E-thr = 18.16 MeV ) 84.93 (nb)
102 (n,γ) 18.76 (b) 18.95 (b) 1.010 1.127 (kb) 800.0 (μb) 87.82 (mb)

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)
 .