Production of a 15C radioactive ion beam based on 18O(n,alpha)

Abstract

.In the context of the SPIRAL2 radioactive beam facility the production rate of the neutron-rich 15C nucleus by 18O(n,alpha) has been investigated. In a water target of 20 cm3, enriched in 18O and placed behind the neutron converter, a rate of a few 1010 nuclei per second can be reached with 1mA of 40MeV deuterons. A 18O(n,alpha) cross-section based on the activation method is proposed. It is intermediate between the highest and lowest evaluations available to date.