X-ray tube for medical diagnostic procedures, has shield formed in form of layer on surface arranged inside vacuum casing, where shield comprises carbon nanotubes and/or boron nitride nanotubes and/or carbon boron nitride nanotubes

摘要

#CMT# #/CMT# The tube (1) has a vacuum casing (3) that comprises a cathode (5) and an anode (7). Electrons are emitted from the cathode to the anode when applying a high voltage to the cathode and the anode. A shield (31) is provided for backscattering electrons emitted from the anode. The shield is provided with carbon and/or boron and/or nitrogen. The shield is formed in the form of a layer on a surface arranged on the inside of the vacuum casing, where the shield comprises carbon nanotubes and/or boron nitride nanotubes and/or carbon boron nitride nanotubes. #CMT#USE : #/CMT# X-ray tube for medical diagnostic procedures. #CMT#ADVANTAGE : #/CMT# The shield is formed in the form of the layer on the surface arranged inside the vacuum casing, where the shield comprises carbon nanotubes and/or boron nitride nanotubes and/or carbon boron nitride nanotubes, thus allowing the shield to have high absorption capacity, and enabling the shield to withstand high operating temperatures of over 500 degrees Celsius. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic sectional view of an X-ray tube. 1 : X-ray tube 3 : Vacuum casing 5 : Cathode 7 : Anode 31 : Shield #CMT#METALLURGY : #/CMT# The surface is made available by a substrate comprising Inconel(RTM: austenitic nickel-chromium-based superalloy) alloy.