What Does ACAR Stand For?

ACAR stands for Angular Correlation Of Annihilation Radiation

ACAR, or Angular Correlation Of Annihilation Radiation, is a sophisticated technique used in particle physics and materials science to study the properties of positron-electron interactions. By analyzing the angular distribution of gamma rays emitted during the annihilation process, ACAR provides insights into the electronic structure, defect densities, and other critical characteristics of materials. This method is instrumental in advancing our understanding of various materials, including semiconductors and metals, helping to inform both theoretical research and practical applications.