Abstract
We investigated the transmission of 10 keV electrons through insulating nanocapillaries of various diameters from 200 nm up to 800 nm with high intensity current (∼56 nA/mm2). We demonstrate a way to identify the quasi-elastic transmission from the total transmission by looking at the characteristic X-rays induced by the transmitted electrons. It shows that the transmitted electrons follow the geometrical transmission with a little deviation. The portion of the nearly elastic transmission is found to be higher for the insulating channels with the diameter of 800 nm. The data obtained allow us to evaluate the possibility of controlling a beam of accelerated electrons using dielectric nanocapillaries.
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