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Key UHV components for high-energy X-ray tubes
AVELION provides a variety of components for X-ray tubes, fully manufactured in-house: we are able to custom-design and manufacture cathode and anode insulators, beryllium window centerframes, cathode arms with filaments, rotors, and so on, for several applications.
Beryllium Window Steel or Copper Center Frame
- Holds the key components of the tube
- Allows the X-rays to exit through an “X-ray transparent” window such as Beryllium or Titanium
- UHV design
- Precision cleaning for use in UHV and High-Voltage applications
- Most of center frames have a specific coating or surface treatment to increase surface emissivity
The center frame is a key structural of the X-ray tube, manufactured in stainless steel or copper depending on thermal and mechanical requirements. It supports and positions the critical internal elements while providing a sealed interface for the x-ray exit window.
The X-ray transparent window, typically made of beryllium or titanium, allows X-rays to exit the tube with minimal attenuation while preserving ultra-high vacuum conditions. The complete assembly is designed for UHB operation and is compatible with high-voltage environments.
Precision cleaning process are applied to all parts to meet cleanliness requirements for UHV and high-voltage use. To further enhance thermal performance, most center frames incorporate specific surface treatments or coatings that increase surface emissivity and improve heat dissipation.
Cathode and Anode Insulator
- Insulation up to 300 kV
- UHV design
- Precision cleaning for use in UHV and High voltage applications
- Frequently brazed onto a stainless steel or kovar ring to allow welding on the centerframe
Cathode and anode insulators are critical components of the X-Ray tube, providing electrical isolation between High-Voltage elements while maintaining ultra-high vacuum conditions.
Designed to operate at voltages up to 300 kV, they combine high dielectric strength with mechanical reliability.
To enable integration onto the center frame, the ceramic insulators are commonly brazed onto stainless steel or Kovar rings, allowing subsequent welding operations while preserving vacuum tightness. All parts are subjected to precision cleaning suitable for uHV and high-voltage applications, ensuring stable and reliable operation.
Cathode Arm / Filament Support
- Holds the tungsten filament that generates the electrons which are accelerated by an electromagnetic field to hit the conversion target
- Requires high precision cleaning to avoid particles and arcing
- Tight mechanical dimensions for filament positioning
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