Production of light nuclei in the reactions of protons with separated tin isotopes

The cross sections for the production of Be-7, Na-22, Na-24, Mg-28, S-38, C l-38, and Cl-39 nuclei from Sn-112, Sn-118,Sn-120, and Sn-124 targets irrad iated with 0.6-, 1.0-, and 8.1-GeV protons were measured by the method of i nduced activity. In analyzing resulting data, it was established that the a bove nuclei are produced in the fragmentation process and that the reaction cross section is a power-law function of the mass and charge numbers of fr agmentation products. A strong dependence of the reaction cross section on the nucleonic composition of the targets and of the products is observed. T he measured cross sections, together with data available in the literature, are discussed within various assumptions. (C) 2000 MAIK "Nauka/lnterperiod ica".