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  • 3M™ Tungsten Dispenser Cathodes
  • 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
    • Low work function allows for lower operational temperatures
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    Specifications
    Attribute Name
    Value
    Application
    Avionics
    Details
    • 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.

    3M Tungsten Dispenser Cathode Parts
    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)

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