EP 0415847 B1 19941207 - X-ray tube rotating anticathode.
Title (en)
X-ray tube rotating anticathode.
Title (de)
Röntgenröhre-Drehantikathode.
Title (fr)
Anticathode tournante de tube à rayons X.
Publication
Application
Priority
FR 8911441 A 19890831
Abstract (en)
[origin: US5031201A] An X-ray tube anticathode, intended to be used, for example, in medical instruments, such as scanners, includes a support made of a ceramic/ceramic composite material and a refractory metal film directly in contact with this support. The use of a ceramic/ceramic composite makes it possible to rotate the anticathode at an extremely high speed. In addition, this composite is selected 1) so that its coefficient of expansion is as compatible as possible with that of the refractory metal, which favors adhesion between the support and the active film, and 2) so that the phenomenon of the diffusion of carbon atoms is suppressed or minimized at the active film under the effect of the rise of temperature by not using a graphite material, which renders it ineffective in using an anticarbonizing film, such as rhenium, indium, SiC, etc.
IPC 1-7
IPC 8 full level
H01J 35/10 (2006.01)
CPC (source: EP US)
H01J 35/108 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES GB IT NL
DOCDB simple family (publication)
EP 0415847 A1 19910306; EP 0415847 B1 19941207; AT E115333 T1 19941215; DE 69014779 D1 19950119; FR 2651370 A1 19910301; FR 2651370 B1 19911206; US 5031201 A 19910709
DOCDB simple family (application)
EP 90402388 A 19900829; AT 90402388 T 19900829; DE 69014779 T 19900829; FR 8911441 A 19890831; US 57271890 A 19900824