13-Al-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 1.671 (b) 1.855 (b) 1.110 1.720 (b) 3.259 (b)
elastic 1.441 (b) 1.626 (b) 1.129 788.5 (mb) 2.966 (b)
inelastic ( E-thr = 875.3 keV ) 443.5 (mb) 287.2 (mb)
(n,2n) ( E-thr = 13.55 MeV ) 5.385 (mb) 2.679 (μb)
(n,na) ( E-thr = 10.47 MeV ) 2.428 (mb) 1.440 (μb)
(n,np) ( E-thr = 8.581 MeV ) 279.7 (mb) 96.50 (μb)
capture 230.3 (mb) 228.8 (mb) 0.993 122.9 (mb) 253.2 (μb) 670.4 (μb)
(n,p) ( E-thr = 1.896 MeV ) 77.96 (mb) 4.284 (mb)
(n,a) ( E-thr = 3.249 MeV ) 122.2 (mb) 687.7 (μb)
(n,2p) ( E-thr = 16.80 MeV ) 1.172e-12 (b)
MT = 203 ( E-thr = 1.896 MeV ) 357.6 (mb) 4.381 (mb)
MT = 207 ( E-thr = 3.249 MeV ) 124.7 (mb) 689.2 (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)
 .