Title (en)

SCANNING X-RAY TUBE

Publication

EP 0115731 A3 19851121 (FR)

Application

EP 83402529 A 19831223

Priority

FR 8222072 A 19821230

Abstract (en)

[origin: EP0115731A2] Tube in which an electron beam (F) is deflected. The X-ray tube (10) comprises, in particular, a filament (2), a focusing element (3) behind the filament (2) and an anodic target (4); the filament (2) and the focusing element (3) form a cathode (C1) emitting the electron beam (F). The focusing element (3) consists of two metal parts (12, 13) electrically insulated from one another and from the filament (2). Independent polarisation of the two metal parts (12, 13) relative to the filament (2) makes it possible to obtain a deflection of the electron beam (F) by an electrostatic effect. The invention is applicable in particular to digital radiology equipment. <IMAGE>

IPC 1-7

H01J 35/06; H01J 35/14

IPC 8 full level

H01J 35/06 (2006.01); H01J 35/14 (2006.01)

CPC (source: EP US)

H01J 35/066 (2019.04 - EP US); H01J 35/14 (2013.01 - EP US)

Citation (search report)

• [X] EP 0032385 A1 19810722 - SIEMENS AG [DE]
• [X] US 3962583 A 19760608 - HOLLAND WILLIAM P, et al
• [A] DE 2249365 A1 19740425 - SIEMENS AG
• [A] US 3646379 A 19720229 - GAREWAL KHEM, et al
• [A] US 3875028 A 19750401 - ATLEE ZED J, et al
• [E] FR 2536583 A1 19840525 - ELSCINT INC [US]

Designated contracting state (EPC)

CH DE FR GB LI

DOCDB simple family (publication)

EP 0115731 A2 19840815; EP 0115731 A3 19851121; FR 2538948 A1 19840706; FR 2538948 B3 19851018

DOCDB simple family (application)

EP 83402529 A 19831223; FR 8222072 A 19821230