The LEED Experiment

Abstract

As was described in the historical overview of Chap. 1, a number of important technological and procedural developments have enabled reliable LEED data to be measured. This chapter describes the main experimental methods presently in use. Many of these are of interest to any surface experimentalist who wishes to observe the LEED pattern, whether for the purpose of measuring diffracted beam intensities or simply to monitor the state of the surface for other investigations. Some of these methods are more specifically relevant to those researchers interested in other surface-sensitive spectroscopies that involve electron impact and/or emission (Sect. 11.4). This is especially true when accuracy is important in such variables as impact and emission angles.