IMPROVED CONTROL AND DATA-ACQUISITION ELECTRONICS FOR HIGH-RESOLUTIONELECTRON-ENERGY-LOSS SPECTROSCOPY

A new version of low-noise, high-stability control, data-acquisition e lectronics has been designed and constructed for high-resolution elect ron energy loss spectroscopy to meet the requirements imposed by new d igital signal processing techniques. The improved electronics feature fast, low-noise, high-stability, programable voltage sources with 16 b it precision for the electron optics and a custom-built 16 bit 100 MHz pulse counter. These electronics, controlled by an IBM-compatible PC through a user-friendly, graphical software interface, allow easy comp uterized tuning and spectral recording. (C) 1996 American Institute of Physics.