EP 2296165 A1 20110316 - Dual element switched electron gun
Title (en)
Dual element switched electron gun
Title (de)
Zweiteilig geschaltete Elektronenkanone
Title (fr)
Canon à électrons commuté à élément double
Publication
Application
Priority
- US 24230809 P 20090914
- US 87397910 P 20100901
Abstract (en)
The invention provides an apparatus and method of switching more than one bias voltage within an electron beam tube in order to achieve electron beam cutoff. The invention is particularly useful for high-perveance electron tubes in which a large change in focus-electrode-to-cathode or anode-cathode voltage might otherwise be needed to achieve cutoff. In one embodiment of the invention, the cathode (208) and anode (210) bias voltages are both switched by magnitudes well within the capabilities of standard high-voltage switches to achieve beam cutoff.
IPC 8 full level
H01J 23/34 (2006.01); H01J 25/34 (2006.01)
CPC (source: EP)
H01J 23/34 (2013.01); H01J 25/34 (2013.01)
Citation (search report)
- [X] EP 1814134 A2 20070801 - NEC MICROWAVE TUBE LTD [JP]
- [A] WO 0030145 A1 20000525 - LITTON SYSTEMS INC [US]
- [A] WO 8500074 A1 19850103 - HUGHES AIRCRAFT CO [US]
- [A] US 4323853 A 19820406 - KUROKAWA TERUHISA
- [A] US 5744919 A 19980428 - MISHIN ANDREY V [US], et al
- [A] US 4638215 A 19870120 - SCHMID ECKART [DE], et al
Citation (examination)
US 4247801 A 19810127 - DALLOS ANDRAS, et al
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10176588 A 20100914