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The X-ray emissions in the interaction of 3–6 MeV Xe23+ ions into thick solid In target are measured. The projectile-to-target and target Lα/Lβ X-ray production intensity ratios are observed to strongly depend on the projectile energy. The dependence deviates from Coulomb ionization predictions, which implies the important roles of coupling between subshells and the activation of 4fσ rotational couplings for projectile energy larger than 5 MeV.

In this work, we studied the photon emission in the visible light range for Xeq+ ions of different charge states (10 ≤ q ≤ 21) bombardment on an aluminum target at 410 keV. During the interactions, the spectra in wavelength range 300–500 nm are recorded, including the photons from Al atoms and neutralized Xe+ ions. The yield of the visible light strongly depends on the projectile charge states. Its variation tendency with the charge states is similar to that of the potential energy variation. In addition, the experimental results also indicate that when the incident charge state is less than the critical charge state, it obeys the staircase classical-over-barrier model.

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Projectile energy dependence of L X-ray emission in collisions of Xe23+ with In target: role of Coulomb ionization and quasi-molecular effects

Incident ion charge state dependence of the visible light emission of Xeq+ ions bombarding aluminum

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Projectile energy dependence of L X-ray emission in collisions of Xe23+ with In target: role of Coulomb ionization and quasi-molecular effects

Incident ion charge state dependence of the visible light emission of Xeq+ ions bombarding aluminum