摘要:
The invention refers to a filament having improved emission of visible light. The emissivity of a tungsten filament is improved by depositing a layer of submicron-to-micron crystallites on the filament, the layer having substantially submicron spacing between crystallites. The crystallites being formed from tungsten or a tungsten alloy of up to 1 weight percent thorium, up to 10 weight percent of at least one of rhenium, tantalum, or niobium, and the balance substantially tungsten.
摘要:
Methods of making an improved high performance x-ray system having an improved cathode assembly which reduces tube failure due to filament misalignment or sagging and prevents costly reflashing of the filament during the manufacturing process is disclosed.
摘要:
An improved high performance x-ray system, having an improved cathode cup assembly which provides reduced tube manufacturing costs and reduces failures due to filament misalignment or sagging of the filament during both the manufacturing process and during operation, is disclosed.
摘要:
A method of making a high performance x-ray system having an improved cathode cup assembly reduces tube manufacturing costs and failures due to filament misalignment during the manufacturing process.