EP 0215034 B1 19890208 - X-RAY TUBE WITH A CYLINDRICAL METAL COMPONENT ENCLOSING THE ANODE AND CATHODE
Title (en)
X-RAY TUBE WITH A CYLINDRICAL METAL COMPONENT ENCLOSING THE ANODE AND CATHODE
Publication
Application
Priority
CH 136385 A 19850328
Abstract (en)
[origin: WO8605921A1] In order to increase the dielectrical resistance without resorting to internal shielding, the ring plate shaped ceramic insulators (13, 23) which carry the cathode (15) and the anode (25) at the axial inside end surfaces (16, 26) of the X-ray tube are stepped down in radial directions by a step (17, 27) in order to permit the forming of an axial hollow (18, 28) running in the form of a ring. On the ceramic insulator (13) which carries the cathode (15), the hollow (18) borders on the external periphery of the ceramic insulator. Conversely, the hollow (28) on the ceramic insulator (23) carrying the anode (25) borders on the inside periphery of the ceramic insulator. Each of the hollows is entirely filled with an insulation material (19, 29), the dielectric constant of which is less than that of the ceramic material. This insulation material (19, 29) is functionally part of a rubber-elastic ring plate (20, 30) which is pressed onto the outer axial end surface of the respective ceramic insulator (13, 23).
IPC 1-7
IPC 8 full level
H01J 35/02 (2006.01); H01J 35/16 (2006.01)
CPC (source: EP)
H01J 35/02 (2013.01); H01J 35/16 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8605921 A1 19861009; AT E40767 T1 19890215; CH 665920 A5 19880615; DE 3662079 D1 19890316; EP 0215034 A1 19870325; EP 0215034 B1 19890208; JP H0570897 B2 19931006; JP S62502796 A 19871112
DOCDB simple family (application)
CH 8600035 W 19860313; AT 86901329 T 19860313; CH 136385 A 19850328; DE 3662079 T 19860313; EP 86901329 A 19860313; JP 50146486 A 19860313