51-Sb-0

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 8.961 (b) 9.451 (b) 1.055 4.639 (b) 5.757 (b)
2 (n,elastic) 3.738 (b) 4.216 (b) 1.128 2.356 (b) 4.381 (b)
4 (n,inelastic) ( E-thr = 37.41 keV ) 610.5 (mb) 1.301 (b)
16 (n,2n) ( E-thr = 9.039 MeV ) 1.658 (b) 1.123 (mb)
17 (n,3n) ( E-thr = 15.90 MeV ) 307.3 (nb)
22 (n,na) ( E-thr = 3.111 MeV ) 7.944 (μb) 3.244 (nb)
28 (n,np) ( E-thr = 5.833 MeV ) 725.8 (μb) 266.7 (nb)
102 (n,γ) 5.223 (b) 5.234 (b) 1.002 174.9 (b) 1.005 (mb) 73.31 (mb)
103 (n,p) 0.000 (b) 0.000 (b) 356.1 (μb) 7.858 (mb) 23.54 (μb)
104 (n,d) ( E-thr = 3.590 MeV ) 1.919 (mb) 775.1 (nb)
105 (n,t) ( E-thr = 6.450 MeV ) 27.53 (μb) 16.31 (nb)
107 (n,a) 0.000 (b) 0.000 (b) 17.08 (μb) 1.981 (mb) 1.210 (μb)

These cross sections are calculated from JENDL-3.2 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)
 .