20-Ca-44

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 4.247 (b) 4.681 (b) 1.102 2.093 (b) 3.200 (b)
elastic 3.359 (b) 3.792 (b) 1.129 889.4 (mb) 2.753 (b)
inelastic ( E-thr = 1.184 MeV ) 617.3 (mb) 446.7 (mb)
(n,2n) ( E-thr = 11.39 MeV ) 528.8 (mb) 92.20 (μb)
(n,3n) ( E-thr = 19.50 MeV ) 9.612e-12 (b)
(n,na) ( E-thr = 9.056 MeV ) 1.113 (mb) 852.2 (nb)
(n,np) ( E-thr = 12.44 MeV ) 72.15 (μb) 291.1 (nb)
capture 888.6 (mb) 889.1 (mb) 1.000 424.6 (mb) 257.5 (μb) 1.083 (mb)
(n,p) ( E-thr = 4.988 MeV ) 34.93 (mb) 65.12 (μb)
(n,a) ( E-thr = 2.818 MeV ) 21.11 (mb) 44.27 (μb)
MT = 600 ( E-thr = 4.988 MeV ) 256.1 (μb) 13.36 (μb)
MT = 601 ( E-thr = 5.175 MeV ) 129.6 (μb) 8.028 (μb)
MT = 602 ( E-thr = 5.380 MeV ) 57.72 (μb) 2.279 (μb)
MT = 603 ( E-thr = 5.520 MeV ) 115.7 (μb) 4.668 (μb)
MT = 649 ( E-thr = 5.819 MeV ) 34.37 (mb) 36.79 (μb)
MT = 800 ( E-thr = 2.818 MeV ) 375.2 (μb) 16.46 (μb)
MT = 801 ( E-thr = 2.989 MeV ) 300.6 (μb) 11.38 (μb)
MT = 802 ( E-thr = 3.346 MeV ) 236.8 (μb) 5.887 (μb)
MT = 803 ( E-thr = 3.877 MeV ) 210.7 (μb) 2.504 (μb)
MT = 804 ( E-thr = 4.203 MeV ) 214.9 (μb) 1.604 (μb)
MT = 805 ( E-thr = 4.491 MeV ) 215.9 (μb) 1.042 (μb)
MT = 806 ( E-thr = 4.730 MeV ) 116.2 (μb) 413.8 (nb)
MT = 807 ( E-thr = 4.849 MeV ) 107.6 (μb) 331.8 (nb)
MT = 808 ( E-thr = 5.192 MeV ) 104.9 (μb) 204.3 (nb)
MT = 809 ( E-thr = 5.272 MeV ) 100.1 (μb) 176.1 (nb)
MT = 810 ( E-thr = 5.446 MeV ) 103.6 (μb) 141.4 (nb)
MT = 811 ( E-thr = 5.575 MeV ) 180.5 (μb) 205.2 (nb)
MT = 812 ( E-thr = 5.614 MeV ) 178.9 (μb) 193.6 (nb)
MT = 813 ( E-thr = 5.775 MeV ) 96.07 (μb) 86.66 (nb)
MT = 814 ( E-thr = 5.834 MeV ) 169.5 (μb) 139.6 (nb)
MT = 815 ( E-thr = 5.897 MeV ) 166.6 (μb) 127.2 (nb)
MT = 816 ( E-thr = 6.012 MeV ) 81.22 (μb) 57.92 (nb)
MT = 817 ( E-thr = 6.179 MeV ) 79.94 (μb) 45.59 (nb)
MT = 818 ( E-thr = 6.221 MeV ) 78.83 (μb) 42.77 (nb)
MT = 819 ( E-thr = 6.282 MeV ) 181.9 (μb) 86.20 (nb)
MT = 820 ( E-thr = 6.327 MeV ) 75.99 (μb) 36.50 (nb)
MT = 821 ( E-thr = 6.383 MeV ) 74.45 (μb) 33.55 (nb)
MT = 822 ( E-thr = 6.468 MeV ) 137.5 (μb) 53.88 (nb)
MT = 823 ( E-thr = 6.493 MeV ) 128.8 (μb) 49.72 (nb)
MT = 824 ( E-thr = 6.600 MeV ) 170.3 (μb) 57.52 (nb)
MT = 825 ( E-thr = 6.636 MeV ) 117.0 (μb) 39.22 (nb)
MT = 826 ( E-thr = 6.678 MeV ) 125.3 (μb) 39.23 (nb)
MT = 827 ( E-thr = 6.704 MeV ) 123.7 (μb) 37.68 (nb)
MT = 828 ( E-thr = 6.744 MeV ) 115.2 (μb) 33.99 (nb)
MT = 829 ( E-thr = 6.796 MeV ) 155.4 (μb) 42.81 (nb)
MT = 849 ( E-thr = 6.877 MeV ) 16.59 (mb) 2.710 (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).

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)
 .