A flexible, modular pulse programmer suitable for diverse nuclear resonance experiments

Abstract

A modular pulse programmer suitable for diverse nuclear resonance experiments is described which provides analogue control of pulse width and digital control of pulse spacing. Because of its flexible nature the programmer can generate all commonly used pulse sequences from a simple two-pulse sequence to complex multiple pulse sequences. It outmodes hard wired programmers and in addition is designed so that a common pulse programmer fault, that errors in pulse spacing depend on the preceding delay, is removed.