55-Cs-134

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 162.5 (b) 165.1 (b) 1.016 4.921 (b) 5.992 (b)
2 (n,elastic) 22.73 (b) 25.59 (b) 1.126 2.921 (b) 3.978 (b)
4 (n,inelastic) ( E-thr = 11.28 keV ) 301.9 (mb) 1.941 (b)
16 (n,2n) ( E-thr = 6.948 MeV ) 1.689 (b) 8.007 (mb)
17 (n,3n) ( E-thr = 16.01 MeV ) 843.4 (nb)
22 (n,na) ( E-thr = 2.452 MeV ) 56.63 (μb) 24.84 (nb)
28 (n,np) ( E-thr = 6.590 MeV ) 1.272 (mb) 272.6 (nb)
32 (n,nd) ( E-thr = 10.76 MeV ) 160.8e-15 (b) 11.72 (nb)
33 (n,nt) ( E-thr = 13.54 MeV ) 0.000 (b) 32.14e-12 (b)
102 (n,γ) 139.7 (b) 139.5 (b) 0.998 105.3 (b) 1.001 (mb) 64.58 (mb)
103 (n,p) 0.000 (b) 0.000 (b) 114.3 (μb) 3.399 (mb) 5.915 (μb)
104 (n,d) ( E-thr = 4.262 MeV ) 2.596 (mb) 535.4 (nb)
105 (n,t) ( E-thr = 4.531 MeV ) 203.2 (μb) 64.47 (nb)
106 (n,He-3) ( E-thr = 8.120 MeV ) 51.68e-15 (b) 10.47e-12 (b)
107 (n,a) 0.000 (b) 0.000 (b) 24.70 (μb) 1.541 (mb) 1.639 (μb)

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)
 .