General instrumentation considerations in electron and ion spectroscopies using synchrotron radiation

Instruments used so far for electron and ion spectroscopies using synchrotron radiation span the spectrum from the audaciously simple to the highly sophisticated. Current practice is surveyed, and an attempt is made to discern future directions. The various multidetection modes are discussed. The distinction between general-purpose and special-purpose instruments is emphasized, and the design of an instrument intended specifically for high k-space resolution is outlined. (orig.)