Table 20.8 Sensitivity coefficients of cross sections
Target nuclide
Sensitivity coefficient of cross section
First largest
Second largest
Others
(a) Zircaloy-2
Zr-93
Zr-92
(n, γ)
0.98 Zr-94
(n, 2n) 0.02
Ni-59
Ni-58
(n, γ)
0.99
Ni-63
Ni-62
(n, γ)
0.97
Co-60
Co-59
(n, γ) m 0.46 Co-59
(n, γ)
0.42
C-14
N-14
(n, p)
1.00
Nb-94
Nb-93
(n, γ)
1.00
Sb-125
Sn-124 (n, γ)
0.56 Sn-124 (n, γ) m 0.48
Ca-41
Ca-40
(n, γ)
1.00
K-40
Ca-40
(n, p)
1.00
Fe-55
Fe-54
(n, γ)
0.95 Ni-58
(n, α)
0.04
Tc-99
Mo-98 (n, γ)
1.00 Mo-97
(n, γ)
0.03 Zr-96 (n, γ)
0.03
Mo-93
Mo-92 (n, γ)
0.99
Be-10
C-13
(n, α)
0.97 B-10
(n, p)
0.03
Mn-54
Fe-54
(n, p)
1.00
Ag-108 m
Cd-106 (n, γ)
1.00 Ag-107 (n, γ) m 0.97
H-3
H-2
(n, γ)
1.00 H-1
(n, γ)
0.78 He-3
(n, p)
0.01
Zn-65
Zn-64
(n, γ)
1.00 Cu-63
(n, γ)
1.00
(b) SUS304 stainless steel
Ni-59
Ni-58
(n, γ)
1.00
Ni-63
Ni-62
(n, γ)
1.00
Fe-55
Fe-54
(n, γ)
0.99 Ni-58
(n, α)
0.01
Co-60
Ni-60
(n, p)
0.92 Fe-58
(n, γ)
0.08 Co-59 (n, γ)
0.04
Co-59 (n, γ) m 0.04
Mn-54
Fe-54
(n, p)
1.00
Be-10
C-13
(n, α)
1.00
C-14
C-13
(n, γ)
1.00
Cl-36
S-34
(n, γ)
1.00 Cl-35
(n, γ)
1.00
(c) INCONEL alloy 718
Ni-59
Ni-58
(n, γ)
0.99
Ni-63
Ni-62
(n, γ)
0.98
Co-60
Co-59
(n, γ) m 0.46 Co-59
(n, γ)
0.42
Nb-94
Nb-93
(n, γ)
1.00
Mo-93
Mo-92 (n, γ)
0.99
Tc-99
Mo-98 (n, γ)
1.00
Fe-55
Fe-54
(n, γ)
0.74 Ni-58
(n, α)
0.26
Zr-93
Nb-93
(n, p)
0.98 Mo-96
(n, α)
0.02
Mn-54
Fe-54
(n, p)
1.00
Be-10
B-10
(n, p)
0.58 C-13
(n, α)
0.42
Cl-36
S-34
(n, γ)
1.00 Cl-35
(n, γ)
0.97
C-14
C-13
(n, γ)
1.00
(continued)
244
K. Yamamoto et al.