500 J CO2electron beam laser controlled by a glow discharge electron gun

Summary form only, as given. The use of electron beam controlled discharge techniques for high pressure gas lasers provides an efficient method for exciting large active volumes, with a high degree of flexibility in pulse length. The cold-cathode glow-discharge electron gun provides a simple and robust source for electron beam lasers. For certain applications this gun offers considerable advantages over the field emission and thermionic devices which are normally used.