plasma density measurement

Plasma density measurement involves determining how many charged particles—like electrons and ions—are present in a given volume of plasma, which is an ionized state of matter. Techniques such as Langmuir probes or microwave diagnostics are used to assess the concentration of these particles by analyzing electrical signals or electromagnetic waves. Accurately measuring plasma density helps scientists understand and control plasma behavior in applications like fusion energy, space physics, and industrial processes. Essentially, it's about quantifying the number of particles within a specific space to better understand the plasma's characteristics and dynamics.