Abstract: A novel reaction chamber is described for the treatment of gases which either have a noxious odor or include toxic elements. The chamber is for treatment of the gases with energetic electrons and uses an extended electron source in the center of a chamber volume which creates electrons that move out of the source and radially into the chamber. The gases are flowed into the area of the source and away from the source as to result in uniform and efficient exposure of the flowing gases.

Abstract: There is described, for example, a generally cylindrical generator of energetic electrons that releases electrons from a vacuum enclosure into a surrounding space including into the atmosphere where the electrons may be used for a variety of applications including clean up of a flowing gas stream. Described is an efficient electron generator that emits more beam power than past structures in this class of devices and does so in connection with the treatment of gases or surfaces requiring treatment.