Columbia Non-neutral Torus

The Columbia Non-neutral Torus (CNT) is a laboratory device used in plasma physics research. Specifically, it is designed to study non-neutral plasmas, which are plasmas that have an imbalance of positive and negative charges. This imbalance can occur when one type of charged particle (such as electrons) is present in a much greater number than the other type (such as ions), leading to interesting physical properties and behaviors.