EP 1747570 A1 20070131 - HIGH-DOSE X-RAY TUBE
Title (en)
HIGH-DOSE X-RAY TUBE
Title (de)
RÖNTGENRÖHRE FÜR HOHE DOSISLEISTUNGEN
Title (fr)
TUBE A RAYONS X POUR EMISSIONS DE DOSES ELEVEES
Publication
Application
Priority
EP 2004050866 W 20040519
Abstract (en)
[origin: WO2005117058A1] The invention relates to an X-ray tube (11) which comprises a cathode emitting electrons (e-) into an interior chamber (40) that is subjected to a vacuum, and a target (31, 32), configured as an anode, for generating high-dose X-radiation ( gamma ). The cathode comprises at least one cold cathode (21, 22, 23) based on an electron (e-) emitting material having a field-enhancing structure (70). The invention especially relates to an X-ray tube (11) having a cold cathode (21, 22, 23) that comprises at least one support layer (201) for supporting the electron (e-) emitting material. The emission area of the cold cathode (21, 22, 23) is defined by the shape of the support layer (201).
IPC 8 full level
H01J 35/06 (2006.01); H01J 33/00 (2006.01)
CPC (source: EP US)
H01J 33/00 (2013.01 - EP US); H01J 35/065 (2013.01 - EP US); H01J 35/116 (2019.04 - EP US); H01J 35/186 (2019.04 - EP US); H01J 2235/068 (2013.01 - EP US)
Citation (search report)
See references of WO 2005117058A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
WO 2005117058 A1 20051208; EP 1747570 A1 20070131; JP 2007538359 A 20071227; US 2008267354 A1 20081030
DOCDB simple family (application)
EP 2004050866 W 20040519; EP 04741611 A 20040519; JP 2007516985 A 20040519; US 59669304 A 20040519