The APT Advantage in Electron Sources
Thermionic, field emission, and thermal field emission cathodes for microscopy, microanalysis, x-ray generation, lithography, additive manufacturing, or any other electron beam application requiring a high brightness source.
Let us create your ideal, custom solution.
Our team of scientists has over 60 years of combined experience in charged-particle optics, high-voltage systems, vacuum technology and surface physics, as well as ion and electron cathode assembly. Contact us to speak with one of our specialists about your application.
Our experienced technicians use state-of-the-art manufacturing methods to create and build cathodes for each customer’s unique specifications.
Explore our electron sources:
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Thermionic Emitters
We grow and fabricate our own high-quality, single-crystal LaB6 and CeBix® in-house using a process that produces the purest and lowest work function material commercially available.
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Cold Field Emitteres
We grow and process our own single-crystal tungsten in-house. Our etch processes can be tailored to customers’ requirements and are tightly controlled to guarantee quality and consistency.
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Thermal Field Emitters
Our zirconiated tungsten thermal field emitters (ZrOW TFE), are the industry-standard for applications requiring high brightness, improved spatial resolution, stable emission, and long life.
