Propagation of 10-keV electrons through glass macrocapillaries

Abstract

The features of 10-keV electron propagation through a cylindrical channel made of borosilicate glass are experimentally studied. Experimental results indicate that a fast electron beam can be controlled using tapered capillaries fabricated from the given material. The charge distribution formed inside the channel provides conditions under which no less than 20% of beam electrons pass through the channel without considerable energy losses even if the inclination angles exceed the geometric angle of transmission.