What Does PAS Stand For?

PAS stands for Positron Annihilation Spectrometry

PAS, or Positron Annihilation Spectrometry, is a highly sensitive analytical technique used to study the atomic and microstructural properties of materials. It utilizes the unique interactions of positrons—antimatter counterparts of electrons—when they are introduced into a sample. The annihilation events that occur when positrons collide with electrons provide valuable information about defects, voids, and the electronic structure of the material. This method is particularly powerful in fields such as materials science, condensed matter physics, and nanotechnology for the characterization and analysis of advanced materials.

Other Meanings for PAS