US 12,274,971 B2
Apparatus and method for applying accelerated electrons to gaseous media
Gösta Mattausch, Dresden (DE); André Weidauer, Dresden (DE); Ralf Blüthner, Dresden (DE); Jörg Kubusch, Dresden (DE); Frank-Holm Rögner, Dresden (DE); Volker Kirchhoff, Dresden (DE); Rainer Labitzke, Dresden (DE); and Burkhard Zimmermann, Dresden (DE)
Assigned to Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
Appl. No. 17/785,538
Filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Munich (DE)
PCT Filed Dec. 14, 2020, PCT No. PCT/EP2020/085888
§ 371(c)(1), (2) Date Jun. 15, 2022,
PCT Pub. No. WO2021/122404, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 134 558.8 (DE), filed on Dec. 16, 2019.
Prior Publication US 2023/0010204 A1, Jan. 12, 2023
Int. Cl. B01D 53/00 (2006.01); B01D 53/34 (2006.01); B01D 53/86 (2006.01); B01J 35/56 (2024.01)
CPC B01D 53/007 (2013.01) [B01D 53/346 (2013.01); B01D 53/8696 (2013.01); B01J 35/56 (2024.01); B01D 2259/812 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for applying accelerated electrons to a gaseous medium, comprising at least one electron beam generator, which has at least one cathode for emitting electrons and at least one electron exit window, wherein
a) the at least one cathode is annular and the at least one electron exit window is formed as an annular first hollow cylinder, wherein the annular electron exit window formed as a first hollow cylinder forms an inner wall of an annular housing of the electron beam generator, wherein the electrons emitted from the cathode can be accelerated to the ring axis of the annular housing;
b) an annular second hollow cylinder is arranged inside the electron exit window formed as the first hollow cylinder, which delimits an annular space between the first hollow cylinder and the second hollow cylinder;
c) a cooling gas flows through the annular space between the first hollow cylinder and the second hollow cylinder and
d) the gaseous medium to which accelerated electrons are to be applied flows through the second hollow cylinder.