Abstract
The electron emission yield induced by 0.5–8 MeV H +, He 2+, Li 3+, B 5+ and C 6+ impact on aluminum and gold targets was measured. The stopping power of bare ions is investigated. Stopping power values calculated according to the Bethe term with and without Barkas and Bloch corrections and to the Z 2 scaling of hydrogen values are compared. The relation of electron emission yield and the stopping power is explored. A significant deviation of a proportionality of the yield to the stopping power is found. Using a — slightly modified — model by Borovsky and Suszcynsky [Phys. Rev. A 43 (1991) 1433] the experiments could be well represented. In this model the collective electric field generated along the projectile's path was taken into account. Consequently, the positive ion channel appears to be the dominant mechanism that leads beyond a projectile independent yield/stopping power ratio.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
