3M™ Tungsten Dispenser Cathodes

3M ID B49000202

Built under strict material and data control, with documentation and test data available

Products are built to the highest achievable quality to meet the most demanding applications

Custom design and engineering to meet customer requirements

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Tech Data Sheet (PDF, 504KB)

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Highlights

Built under strict material and data control, with documentation and test data available
Products are built to the highest achievable quality to meet the most demanding applications
Custom design and engineering to meet customer requirements
Low work function allows for lower operational temperatures
Cathode heater assemblies are 100% tested for proper heater operation

3M™ Tungsten Dispenser Cathodes consist of a porous tungsten matrix impregnated with a barium-based, emission-enhancing material. They are used as an electron source in a variety of aviation, defense and communications applications.

Cathodes are built to high quality standards

A Trusted Electron Source
3M™ Tungsten Dispenser Cathodes are often used as an electron source in vacuum devices and inert/reducing atmospheres, but the most common applications include traveling wave tubes (TWTs), klystrons, magnetrons and plasma devices. While they typically consist of a porous tungsten matrix impregnated with a barium-based, emission-enhancing material, this matrix may also be a mixed metal depending on the application.

3M Offers the Following Cathode Products:

Precision Through Process
3M has over 60 years of industry experience manufacturing cathodes. Our highly controlled manufacturing processes are designed to ensure consistent product quality and to meet the exacting standards of a wide array of military and civilian applications. We control each stage of the cathode manufacturing process, from basic raw materials through the manufacturing of critical components to final assembly.

Industries and Applications

Long-range communications
Printing technologies (lithography)
Commercial ion sources
Space travel
X-ray equipment
Scientific research (particle accelerators)
Traveling wave tubes (TWTs)
Klystrons
Extended interaction klystrons (EIK)
Gyrotrons
Electric propulsion
Plasma contactors
Spacecraft neutralization
Technology used in laser light shows
High-powered gas lasers
Molecular microscopy research
Ion neutralizers
Ion electric propulsion
Magnetrons
Plasma devices

Learn More About 3M Cathodes (PDF, 1.11 Mb)

Typical properties

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