EP 0991106 A2 20000405 - High power X-Ray tube
Title (en)
High power X-Ray tube
Title (de)
Hochleistungsröntgenröhre
Title (fr)
Tube à rayons x de haute puissance
Publication
Application
Priority
- EP 91310751 A 19911121
- US 61646490 A 19901121
Abstract (en)
A high power x-ray generating tube (2) for reducing the effects of excessive heating of the window (16) through which the x-rays (16) are transmitted. The x-ray generating tube consists of a metal center section (6) having a stationary cathode (8) and a rotating anode (10). Various embodiments are employed for deflecting secondary electrons back scattered from the anode away from the window (16) to avoid overheating of the window. In particular the invention is characterised in that the window (16) includes insulating means for providing a build-up of negative charge on the inner surface of the window to repel secondary electrons (20). A grounded anode simplifies the mechanisms required to prevent overheating.
IPC 1-7
IPC 8 full level
H01J 35/00 (2006.01); H01J 35/04 (2006.01); H01J 35/14 (2006.01); H01J 35/16 (2006.01); H01J 35/18 (2006.01)
CPC (source: EP US)
H01J 35/04 (2013.01 - EP); H01J 35/16 (2013.01 - EP); H01J 35/18 (2013.01 - EP US); H01J 2235/122 (2013.01 - EP); H01J 2235/1262 (2013.01 - EP); H01J 2235/167 (2013.01 - EP); H01J 2235/168 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0491471 A2 19920624; EP 0491471 A3 19920930; EP 0991106 A2 20000405; EP 0991106 A3 20000503; JP H04315752 A 19921106
DOCDB simple family (application)
EP 91310751 A 19911121; EP 99123769 A 19911121; JP 33151691 A 19911121