The characteristic spectral lines of target atoms in the impact of ~(40)Ar~(q+) ions on metal surfaces

1 Introduction It has been found that a large number of ions and atoms can be sputtered; and elec-trons and X-ray can be emitted in the impact of slow highly charged ions (SHCI) onmetal surfaces. It has also been shown that a slow highly charged ion can deposit anamount of potential energy ranging from tens to hundreds of keV within a nanometer-sized volume on femtosecond time scale during impinging on a solid surface. Theequivalent power density is about 1014 W/cm2 and bombardment craters …

The characteristic spectral lines of target atoms in the impact of 40Arq+ ions on metal surfaces

We report the measured results of the 200 nm-1000 nm characteristic spectral lines of target atoms when highly charged ions 40Arq+(6≤q≤14) with the same kinetic energy and 40Ar6+ with different kinetic energies are incident upon Al, Ti, Ni, Ta and Au surfaces, respectively. The results for 129Xe6+, 129Xe10+ and 129Xe15+ with the same kinetic energy (150 keV) incident upon a Ta surface are also reported. These results show that when the projectile and target are properly selected (40Ar12+ impinges on Al, 129Xe6+ impinges on Ta), the spectral intensity of characteristic spectral lines of the target atom is effectively enhanced, and is not strongly dependent on the kinetic energy of the incident ions.