Plasmasäteen

Plasmasäteen, often translated as plasma jet, refers to a directed flow of plasma. Plasma itself is considered the fourth state of matter, an ionized gas composed of ions, electrons, and neutral particles. When this ionized gas is propelled in a specific direction, it forms a plasma jet. These jets can be generated through various methods, including electrical discharges, electromagnetic fields, or thermal expansion. The properties of a plasma jet, such as its temperature, density, and velocity, depend on the generation method and the specific gases used.

Plasma jets have found applications in a range of fields. In industrial settings, they are utilized for surface treatment, such as cleaning, etching, and functionalization of materials. Their high energy can modify the surface properties of polymers, metals, and ceramics, improving adhesion or creating specific chemical characteristics. In scientific research, plasma jets are employed in studies of fundamental plasma physics, as well as in areas like astrophysics to model phenomena occurring in stars and nebulae.

Medical applications are also emerging for plasma jets. Non-thermal atmospheric pressure plasma jets are being investigated for their potential in sterilization, wound healing, and cancer therapy. These jets can kill bacteria and viruses without causing significant thermal damage to surrounding tissues, making them a promising tool for various medical treatments. The versatility and tunable properties of plasma jets continue to drive research and development across multiple disciplines.