Plasma is a state of matter with high energy, consisting of ionized particles. Its energy is associated with the movement of charged particles and electromagnetic interactions within the plasma.

The energy of a plasma is primarily derived from the high kinetic energy of its charged particles, such as electrons and ions, which move freely. Additionally, the plasma’s energy is influenced by temperature, density, and electromagnetic fields present within it. Fusion reactions in stars and certain experimental devices harness this energy for various applications.

Cold plasma and atmospheric plasma refer to different temperature ranges and energy characteristics:

1. Cold Plasma:

– Temperature: Relatively low, often close to room temperature.

– Energy Levels: Predominantly non-thermal. Cold plasma can be sustained with minimal temperature increase, and the energy is often derived from electrical discharges rather than high thermal motion of particles.

2. Atmospheric Plasma:

– Temperature: Varies, but it typically operates at temperatures higher than room temperature, though not as high as traditional thermal plasmas.

– Energy Levels: Can include thermal and non-thermal components. Atmospheric plasmas are generated at atmospheric pressure and can have a mix of thermal and non-thermal energy due to electrical discharges.

In summary, cold plasma is characterized by its non-thermal nature, operating at lower temperatures, while atmospheric plasma can encompass a broader range of temperatures with a potential mix of thermal and non-thermal energy components. Both have applications in fields like medicine, materials processing, and surface treatments.