Current Drive

Current drive in plasma physics refers to methods used to generate and sustain electric currents within a plasma, such as in fusion reactors. By applying certain techniques—like electromagnetic waves or magnetic fields—energy is transferred to charged particles (electrons and ions), causing them to move and create a current. This current helps control the plasma’s behavior, maintain its stability, and achieve conditions needed for nuclear fusion. Essentially, current drive is a way to electrically "fuel" the plasma, ensuring it stays hot and confined long enough for fusion reactions to occur efficiently.