32-Ge-72

MT Reaction 0.0253-eV Maxwellian
Average
g-factor Resonance
Integral
14-MeV Fiss. Spec.
Average
1 (n,total) 9.976 (b) 11.15 (b) 1.118 3.177 (b) 4.171 (b)
2 (n,elastic) 9.165 (b) 10.34 (b) 1.128 1.729 (b) 3.386 (b)
4 (n,inelastic) ( E-thr = 701.3 keV ) 610.8 (mb) 760.1 (mb)
16 (n,2n) ( E-thr = 10.90 MeV ) 782.2 (mb) 175.5 (μb)
17 (n,3n) ( E-thr = 18.42 MeV ) 3.691 (nb)
22 (n,na) ( E-thr = 5.071 MeV ) 1.165 (mb) 408.6 (nb)
28 (n,np) ( E-thr = 9.867 MeV ) 3.165 (mb) 657.6 (nb)
32 (n,nd) ( E-thr = 17.04 MeV ) 2.331e-12 (b)
102 (n,γ) 810.4 (mb) 810.2 (mb) 1.000 867.8 (mb) 768.3 (μb) 23.00 (mb)
103 (n,p) ( E-thr = 3.255 MeV ) 32.55 (mb) 323.2 (μb)
104 (n,d) ( E-thr = 7.611 MeV ) 4.080 (mb) 893.2 (nb)
105 (n,t) ( E-thr = 10.70 MeV ) 14.14 (μb) 21.65 (nb)
106 (n,He-3) ( E-thr = 10.02 MeV ) 87.22e-12 (b) 11.72e-12 (b)
107 (n,a) 0.000 (b) 0.000 (b) 1.578 (mb) 13.64 (mb) 87.67 (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)
 .