EP 3853879 A1 20210728 - ELECTRON GUN
Title (en)
ELECTRON GUN
Title (de)
ELEKTRONENKANONE
Title (fr)
CANON À ÉLECTRONS
Publication
Application
Priority
- DE 102018123100 A 20180920
- EP 2019074183 W 20190911
Abstract (en)
[origin: WO2020058053A1] An electron gun is specified, which comprises: - a cathode, which has a cathode holder and a cathode body; and - a Wehnelt cylinder, wherein the cathode holder receives the cathode body and the Wehnelt cylinder is suitable for bundling free electrons, which can escape from the cathode body toward the Wehnelt cylinder, to form an electron beam, and the Wehnelt cylinder is interlockingly arranged, at least in some parts along a first inner surface facing the cathode holder, on an outer surface of the cathode holder and at least partly extends around the cathode holder.
IPC 8 full level
H01J 1/26 (2006.01); H01J 1/18 (2006.01); H01J 1/28 (2006.01); H01J 1/94 (2006.01); H01J 23/04 (2006.01); H01J 23/083 (2006.01); H01J 25/36 (2006.01); H01J 37/067 (2006.01)
CPC (source: EP US)
H01J 1/18 (2013.01 - EP); H01J 1/26 (2013.01 - EP); H01J 1/28 (2013.01 - EP); H01J 1/94 (2013.01 - EP); H01J 3/027 (2013.01 - US); H01J 3/14 (2013.01 - EP); H01J 23/04 (2013.01 - EP); H01J 23/07 (2013.01 - US); H01J 23/083 (2013.01 - EP); H01J 25/36 (2013.01 - EP); H01J 25/42 (2013.01 - EP); H01J 35/06 (2013.01 - US); H01J 35/066 (2019.04 - EP); H01J 37/067 (2013.01 - EP)
Citation (search report)
See references of WO 2020058053A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102018123100 A1 20200326; EP 3853879 A1 20210728; US 11990307 B2 20240521; US 2021350995 A1 20211111; WO 2020058053 A1 20200326
DOCDB simple family (application)
DE 102018123100 A 20180920; EP 19769112 A 20190911; EP 2019074183 W 20190911; US 201917277760 A 20190911