Measurement of LEED intensities with a modified closed-circuit television system

Abstract

A simple and inexpensive method to record and process low-energy electron diffraction (LEED) intensities (I-V curves) is presented. A closed-circuit television system and an electronic interface allow the selection of one spot at a time. The raw data are corrected for background, beam current and transmission of the LEED optics. The intensities can be measured directly from the screen or from a television recorder.