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The experiments were performed at Heavy Ion Research Facility in Lanzhou (HIRFL). The natural uraniumtargets of 1.5g/cm2 were bombarded by 60MeV/u 18O beam with a current intensity of (30-60)nA. Afterirradiation of 15min each target was rapidly transferre
The experiments were performed at Heavy Ion Research Facility in Lanzhou (HIRFL). The natural uranium targets were bombarded by 60 MeV / u 18O beam with a current intensity of (30-60) nA. Afterirradiation of 15min each target was rapidly transferre