International Reactor Dosimetry File 2002 - IAEA Publications

TABLE 2.1. MEASURED AND CALCULATED AVERAGED CROSS-
SECTIONS IN THE CALIFORNIUM-252 SPONTANEOUS FISSION
NEUTRON SPECTRUM
Reaction
Updated RRDF-98
(mb)
IRDF-90
(mb)
Experimental (mb)
19 F(n,2n) 18 F 0.01615 0.01703 0.01612 ± 0.00054 [2.31]
24 Mg(n,p) 24 Na 2.1398 2.1564 1.996 ± 0.049 [2.31]
27 Al(n,p) 27 Mg 4.9070 — 4.880 ± 0.105 [2.31]
46 Ti(n,2n) 45 Ti 0.01198 — 0.093 ± 0.031 [2.23]
46 Ti(n,p) 46 Sc m+g 13.818 12.313 14.07 ± 0.25 [2.31]
47 Ti(n,x) 46 Sc m+g 0.019201 — —
48 Ti(n,p) 48 Sc 0.42629 0.3864 0.4247 ± 0.0080 [2.31]
48 Ti(n,x) 47 Sc 0.0042891 — —
49 Ti(n,x) 48 Sc 0.0026070 — —
51 V(n,α) 48 Sc 0.038514 0.03872 0.03900 ± 0.00086 [2.31]
54 Fe(n,2n) 53 Fe m+g 0.0036219 — —
54 Fe(n,α) 51 Cr 1.1114 — —
56 Fe(n,p) 56 Mn 1.4730 1.368 1.465 ± 0.026 [2.31]
59 Co(n,α) 56 Mn 0.22095 0.2159 0.2218 ± 0.0042 [2.31]
0.2208 ± 0.0014 [2.24]
58 Ni(n,p) 58 Co m+g 117.36 115.2 117.5 ± 1.5 [2.31]
63 Cu(n,α) 60 Co m+g 0.6925 0.6778 0.6887 ± 0.0135 [2.31]
75 As(n,2n) 74 As 0.61804 — —
93 Nb(n,2n) 92 Nb m 0.7701 0.7773 0.749 ± 0.038 [2.31]
93 Nb(n,n′) 93 Nb m 146.02 142.55 147.5 ± 2.5 a
103 Rh(n,n′) 103 Rh m 724.83 714.1 620.8 ± 67.2 [2.20]
813.2 ± 24.2 [2.27]
115 In(n,n′) 115 In m 191.66 189.7 197.4 ± 2.7 [2.31]
141 Pr(n,2n) 140 Pr 1.9843 — —
139 La(n,γ) 140 La 6.650 — —
186 W(n,γ) 187 W 31.699 — —
204 Pb(n,n′) 204 Pb m 20.373 — 20.900 ± 1.202 [2.21]
20.850 ± 0.920 [2.25]
237 Np(n,f) 1359.9 1359.6 1361.0 ± 21.6 [2.31]
a
Evaluated by the author.
9