Transit-Tube Cathodes TRIZ Cases
- Thorium-Free Tungsten Alloy Wire for Crack-Resistant Filaments
Rare-earth and carbon doping replaces radioactive thorium in tungsten wire, raising recrystallization control and reducing crack points in filaments.
- Tungsten Carbide Alloy Filament for Stable Thorium-Free Emission
A carburized tungsten carbide filament with rare earth elements delivers stable thorium-free electron emission while reducing brittleness and radiation risk.
- Scandate Cathode Heater Assembly for Low-Power Electron Emission
A scandate cathode in a refractory cup lowers work function, boosting current density while cutting heater power and extending vacuum tube life.