Abstract
Argon ion beams with energy from hundreds eV to several keV can suppress the secondary electron emission (SEE) on surface of metal materials by changing surface morphology and chemical composition of the materials through surface sputtering. In this work, it was found that the low-energy titanium ion irradiation with an average energy from 40 keV to 100 keV did not apparently change the surface morphology and chemical composition of the metal materials, but still significantly reduced the secondary electron yield (SEY) of the materials. Pulsed titanium ion beams generated by an ion implanter, which is based on metal evaporation vacuum arc (MEVVA) ion source, were adopted to irradiate oxygen-free copper and stainless-steel samples. The fluence of titanium ions was in the range of 1 × 1015 to 1 × 1017 ions/cm2. By comparing the effects of different titanium ion energies and fluence on the roughness, chemical composition, total SEY of the sample surface, and calculating the ion range, sputtering yield, nuclear stopping power and defect distribution of titanium ions in these materials, it is reasonable to believe that the irradiation damage caused by titanium ion implantation increases the probability of trapping of the low-energy secondary electrons (SEs) by defects, leading to better SEE suppressing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.