科研之友
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摘要
Cross-sections for (n,2n), (n, p), and (n, alpha) reactions have been measured on silver isotopes at the neutron energies from 13.5 to 14.8 MeV using the activation technique in combination with high-resolution gamma-ray spectroscopy. Corrections were made for the literature cross-sections of (109)Ag(n,2n) (108m)Ag reaction with incorrect half-life of product (108m)Ag. Neutrons were produced via the (3)H(d, n)(4)He reaction using solid TiT. The neutron fluences were determined using the monitor reaction (27)Al(n,alpha)(24)Na. The neutron energy in this measurement was determined by cross-section ratios for the (90)Zr(n,2n) (89m+g)Zr and (93)Nb(n,2n)(92m)Nb reactions. Data are reported for the following reactions: (109)Ag(n,2n)(108m)Ag, (107)Ag(n,2n)(106m)Ag, (109)Ag(n,p)(109m+g)Pd, and (109)Ag(n,alpha)(106m)Rh. The cross-sections were discussed and compared with experimental data found in the literature, and with the comprehensive evaluation data in ENDF/B-VII, JENDL-3.3, and JEFF-3.1/A libraries.
