51-Sb-0

Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
total 8.959 (b) 9.455 (b) 1.055 4.720 (b) 5.774 (b)
elastic 3.738 (b) 4.219 (b) 1.129 2.441 (b) 4.398 (b)
inelastic ( E-thr = 37.41 keV ) 610.3 (mb) 1.301 (b)
(n,2n) ( E-thr = 9.039 MeV ) 1.658 (b) 1.123 (mb)
(n,3n) ( E-thr = 15.90 MeV ) 307.5 (nb)
(n,na) ( E-thr = 3.112 MeV ) 7.937 (μb) 3.241 (nb)
(n,np) ( E-thr = 5.833 MeV ) 725.2 (μb) 266.4 (nb)
capture 5.221 (b) 5.236 (b) 1.003 174.8 (b) 1.005 (mb) 73.31 (mb)
(n,p) 0.000 (b) 0.000 (b) 355.8 (μb) 7.856 (mb) 23.52 (μb)
(n,d) ( E-thr = 3.590 MeV ) 1.918 (mb) 774.5 (nb)
(n,t) ( E-thr = 6.450 MeV ) 27.51 (μb) 16.30 (nb)
(n,a) 0.000 (b) 0.000 (b) 17.06 (μb) 1.980 (mb) 1.209 (μb)
MT = 203 0.000 (b) 0.000 (b) 358.1 (μb) 8.581 (mb) 23.78 (μb)
MT = 204 ( E-thr = 3.590 MeV ) 1.918 (mb) 774.5 (nb)
MT = 205 ( E-thr = 6.450 MeV ) 27.51 (μb) 16.30 (nb)
MT = 207 0.000 (b) 0.000 (b) 17.06 (μb) 1.988 (mb) 1.212 (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)
 .