AN INTENSE PULSED POSITRON BEAM

A positron pulsing system for an intense positron beam generated by an electron linac is reported. The pulsing system generates an intense p ulsed positron beam of variable energy and variable pulse period. The pulsed positron beam is used as a nondestructive probe for various mat erial research. In this paper, we also discuss applications of the pul sed positron beam: positron lifetime spectroscopy, age-momentum correl ation spectroscopy, positronium time-of-flight measurement, and positr on annihilation-induced Auger electron spectroscopy with a time-of-fli ght technique.