Estudio del efecto Guiding durante la interacción de haces de electrones de 1 keV a 10 keV con muestras macroscópicas de borosilicato.

Abstract

The Guiding effect is a technique for steering charged particles through their interaction with dielectrics without the need for external electromagnetic fields. In the case of electron beams, there are still uncertainties about the phenomenon, particularly regarding its dependence on energy and whether there is a surface accumulation of charge known as the "Charge Patch." This study investigated the Guiding effect with electron beams ranging from 1 keV to 10 keV on a flat borosilicate sample. It was established that, with a higher incident beam energy, there was an increased current of the dispersed beam in the plane formed by the initial velocity of the incident beam and the normal to the borosilicate sample projected from the impact point of the beam. It was observed that the energy losses of the dispersed electrons did not exceed 10%. The irradiated area was measured using methods such as electrical polarization of a probe, charge transfer by contact, and deflection of a beam by Coulomb force. States of pre and post-irradiation of the borosilicate plate were identified; however, the specific magnitude of the charge patch could not be determined. A software for the automatic acquisition of data generated by the electrometer and electron gun with a visualization interface was developed. This software was implemented in Python and JavaScript using open-source software libraries.