MDC’s replacement filament assemblies are designed specifically for use in Resistive Heating (I²R) degas ionization gauge tubes, ensuring continued accuracy and stability in ultrahigh vacuum (UHV) environments. These assemblies are available in two configurations to suit different performance needs:

Twin Tungsten Filament for Bayard-Alpert gauge tubes—ideal for long-life, high-emission applications
Single Iridium Filament for Bayard-Alpert gauge tubes—suited for high-temperature and chemically resistant environments

These filaments are capable of operating under high bakeout temperatures and are UHV compatible, making them suitable for demanding scientific and industrial vacuum applications. Designed for easy integration, they help minimize system downtime and extend gauge life.

Industry Applications

MDC’s I²R degas filament assemblies are ideal for use in semiconductor processing, UHV research laboratories, thin-film deposition, surface science, and space simulation systems. Their high-temperature tolerance and material options ensure long-lasting, accurate vacuum pressure measurement, even in the most challenging and contamination-sensitive environments.