Key UHV components for high-energy X-ray tubes
PMB 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.
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Cathode and Anode Insulator
- Insulation up to 300 kV
- UHV design
- Precision cleaning for use in UHV and High voltage fields.
- Frequently brazed onto a stainless steel or kovar ring to allow welding on the centerframe.
Beryllium Window 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 fields
- Most of center frames have a specific coating or surface treatment to increase surface emissivity
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
