Observation of K- and L-REC in 200 MeV/u Xe 54+-N 2 collisions at HIRFL-CSR

Abstract

The 200 MeV/u Xe 54+ ions were utilized to collide with N 2 molecules and the K- and L-REC, as well as the Lyman lines of Xe 53+ were observed. After electron cooling, the ion beam momentum spread Δ P/ P ≈ 2.2 × 10 −5 was achieved and the target thickness was stabilized at about 10 13 atom/cm 2. As the first atomic experiment at HIRFL-CSR with the internal target, its feasibility and stability were verified.