EP 2206136 B1 20130327 - X-RAY ROTATING ANODE PLATE, AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
X-RAY ROTATING ANODE PLATE, AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
RÖNTGEN-DREHANODENTELLER UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
PLAQUE ANODE ROTATIVE AUX RAYONS X ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- DE 2008001629 W 20081001
- DE 102007047544 A 20071002
- DE 102008021551 A 20080428
Abstract (en)
[origin: WO2009043344A1] The aim of the invention is to design an X-ray rotating anode plate and devise a method for producing such an X-ray rotating anode plate which comprises a base, meets very strict requirements in terms of the temperature of the focal spot and the rotational speed by having a low weight and adequate heat conductivity and being sufficiently resistant to high temperatures, while the cost of materials for the base is kept low. Said aim is achieved by an X-ray rotating anode plate comprising a base (1.1) that contains carbon nanoparticles in a quasi homogeneous spatial distribution which ensures substantially isotropic properties of the base (1.1) in the submacroscopic range. Said carbon nanoparticles can be carbon nanotubes and/or graphite powder nanoparticles having a substantially spherical shape. According to the invention, the solidity and heat conductivity of the base can be improved by additives. Said aim is also achieved by a method in which the starting materials of the base, optionally of a binder layer and/or a diffusion barrier and the X-ray active layer, are brought into an approximate final shape in one procedure in a die by simultaneously applying pressure, temperature, and temporally varied electric currents to said starting materials, the starting materials are compressed to the final thickness, and high-strength diffusion bonds are formed between said starting materials. The invention can be used in high-power X-ray tubes for computed tomography.
IPC 8 full level
H01J 35/10 (2006.01)
CPC (source: EP US)
H01J 35/108 (2013.01 - EP US); H01J 2235/081 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102008050716 A1 20090409; EP 2206136 A1 20100714; EP 2206136 B1 20130327; ES 2409579 T3 20130627; JP 2010541172 A 20101224; US 2010284520 A1 20101111; US 8280008 B2 20121002; WO 2009043344 A1 20090409
DOCDB simple family (application)
DE 102008050716 A 20081001; DE 2008001629 W 20081001; EP 08836274 A 20081001; ES 08836274 T 20081001; JP 2010527322 A 20081001; US 68105508 A 20081001