96-Cm-244

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 28.65 (b) 30.25 (b) 1.056 5.941 (b) 8.009 (b)
elastic 12.39 (b) 13.97 (b) 1.128 2.195 (b) 4.640 (b)
inelastic ( E-thr = 43.14 keV ) 398.3 (mb) 1.514 (b)
(n,2n) ( E-thr = 6.829 MeV ) 407.1 (mb) 2.191 (mb)
(n,3n) ( E-thr = 12.55 MeV ) 11.99 (mb) 2.228 (μb)
fission 1.022 (b) 1.019 (b) 0.997 13.34 (b) 2.920 (b) 1.733 (b)
(n,fission) 1.022 (b) 1.019 (b) 0.997 12.80 (b) 1.219 (b) 1.707 (b)
(n,n,fiss) ( E-thr = 1.110 MeV ) 1.662 (b) 26.13 (mb)
(n,2n,fiss) ( E-thr = 9.500 MeV ) 41.58 (mb) 8.396 (μb)
(n,3nfiss) ( E-thr = 17.50 MeV ) 1.243 (nb)
capture 15.24 (b) 15.25 (b) 1.001 625.8 (b) 1.154 (mb) 115.9 (mb)
 
νp 3.000 5.148
νd 4.451e-3 3.629e-3

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).

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)
 .


νp, νd : numbers of prompt and delayed neutrons per fission.