YIELD OF Be-7 PRODUCED ON THE NUCLEAR REACTOR BY SECONDARY CHARGED PARTICLE INDUCED NUCLEAR REACTIONS

The yields of the radionuclide 7Be produced in a nuclear reactor by secondary nuclear reactions induced by recoil protons and deuterons on Li and B7Li(p, n) +10B(p, ) + 11B(p, n) + 6Li(d,n) +7Li(d,2n)+ 10B(p, ) +10B(d, n) + 11B(d, 2n) were investigated. The powder specimens LiOH and H3BO3 fixed in some hydrogen containing viscous liquid materials and placed in quartz ampoules were irradiated inthe nuclear reactor. The number of 7Be nuclei accumulated in the targets was measured by counting the γ-rays from 7Be using a REGE detector of company CANBERRA.The yield of 7Be produced by group nuclear reactions with lithium was 181.5 27.2kBq/g.h, while that produced by group nuclear reactions with boron was 58.8 8.54kBq/g.h. The results obtained by using the nuclear reactor are compared with the compiled data obtained with application of the cyclotron.