55-Cs-135

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 13.57 (b) 14.19 (b) 1.046 4.951 (b) 6.017 (b)
2 (n,elastic) 4.868 (b) 5.492 (b) 1.128 2.933 (b) 4.685 (b)
4 (n,inelastic) ( E-thr = 251.7 keV ) 328.5 (mb) 1.301 (b)
16 (n,2n) ( E-thr = 8.898 MeV ) 1.683 (b) 1.764 (mb)
17 (n,3n) ( E-thr = 15.85 MeV ) 1.344 (μb)
22 (n,na) ( E-thr = 2.656 MeV ) 105.5 (μb) 38.90 (nb)
28 (n,np) ( E-thr = 6.885 MeV ) 1.646 (mb) 342.3 (nb)
32 (n,nd) ( E-thr = 13.16 MeV ) 0.000 (b) 306.3e-12 (b)
33 (n,nt) ( E-thr = 13.43 MeV ) 0.000 (b) 40.45e-12 (b)
102 (n,γ) 8.704 (b) 8.701 (b) 1.000 62.46 (b) 1.003 (mb) 27.61 (mb)
103 (n,p) ( E-thr = 379.3 keV ) 2.454 (mb) 1.685 (μb)
104 (n,d) ( E-thr = 4.557 MeV ) 762.7 (μb) 193.3 (nb)
105 (n,t) ( E-thr = 6.929 MeV ) 15.93 (μb) 19.31 (nb)
107 (n,a) 0.000 (b) 0.000 (b) 7.080 (μb) 1.136 (mb) 536.2 (nb)

These cross sections are calculated from JENDL-3.3 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)
 .