Abstract: A hollow cathode system generates a plasma. The system includes an anode device, a power supply for applying an electric current between a cathode tube and the anode device, and at least one gas reservoir for supplying the gas flowing through the cathode tube are used, in which at least two cathode tubes are used that are electrically connected to one another, and in which each cathode tube has a separate actuator with which the amount of gas flowing through the respective cathode tube is set.

Abstract: Device for producing an electron beam includes a housing, which delimits a space that is evacuatable and has an electron beam outlet opening; an inlet structured and arranged for feeding process gas into the space; and a planar cathode and an anode, which are arranged in the space, and between which, a glow discharge plasma is producible by an applied electrical voltage. Ions are accelerateable from the glow discharge plasma onto a surface of the cathode and electrons emitted by the cathode are accelerateable into the glow discharge plasma. The cathode includes a first part made of a first material at least on an emission side, which forms a centrally arranged first surface region of the cathode, and a second part made of a second material, which forms a second surface region of the cathode that encloses the first surface region.

Abstract: The invention relates to a device for producing an electron beam, comprising a housing (12), which delimits a space (13) that can be evacuated and has an electron beam outlet opening; an inlet (16) for feeding a process gas into the space (13) that can be evacuated; a planar cathode (14) and an anode (15), which are arranged in the space (13) that can be evacuated and between which a glow-discharge plasma can be produced by means of an applied electrical voltage, wherein ions can be accelerated from the glow-discharge plasma onto the surface of the cathode (14). The cathode has a first part (14a) made of a first material, which forms a centrally arranged first surface region of the cathode (14), and a second part (14b) made of a second material, which forms a second surface region of the cathode (14) that encloses the first surface region.

Abstract: Method and device for inactivating a microbiologically contaminated mass containing solid particles. The method includes mixing the mass containing solid particles with a gelatinizing agent, transporting the mixed mass of solid particles and gelatinizing agent through a shaping device structured so that the mixed mass, at least in one area, is shaped to form a lamellar volume with a layer thickness of between 1 mm and 3 mm, and impinging the formed lamellar volume of the mixed mass with accelerated electrons.

Abstract: Method and device for inactivating a microbiologically contaminated mass containing solid particles. The method includes mixing the mass containing solid particles with a gelatinizing agent, transporting the mixed mass of solid particles and gelatinizing agent through a shaping device structured so that the mixed mass, at least in one area, is shaped to form a lamellar volume with a layer thickness of between 1 mm and 3 mm, and impinging the formed lamellar volume of the mixed mass with accelerated electrons.