Wake potential in interaction of charged particles with Carbon nanotubes

ABSTRACT The interaction of charged particles with nanotubes is described on the basis of the dielectric formalism, starting with simple dielectric models, like Random Phase Approximation (RPA)and Lorentz models.The response of the medium is characterized in terms of the wake effects, calculating the main effects on the moving particles, including induced field and induced potential in 2D and 3D of cylindrical coordinates. The wake results exhibits a damped oscillatory behavior in the longitudinal direction behind the projectile (proton), the pattern of these oscillations decreases exponentially in the transversal direction. Good agreement is achieved with previous work . Keywords: wake potential, dielectric function ,carbon nanotube