CTIA's Tungsten Heater in Thermionic Cathode
CTIA’s tungsten heater is used in thermionic cathode systems to provide a stable high temperature heat source, allowing the cathode to reach the required emission temperature for consistent electron beam generation and output. The tungsten heat source is fabricated from high purity tungsten wire through precision coiling, forming, and vacuum high temperature degassing. It is widely used in X-ray tubes, oscilloscopes, microwave tubes, traveling wave tubes, and mass spectrometer ion sources.
Why Use CTIA’s Tungsten Heater in Thermionic Cathode
Thermionic cathodes act as the energy source in vacuum electronic devices, and emission stability depends on the thermal field provided by the heater. CTIA’s tungsten heater offers the following characteristics:
(1) High melting point: Tungsten has a melting point of 3410°C, enabling stable operation in the 1000 to 1600°C range without structural failure.
(2) High vacuum compatibility: Extremely low vapor pressure reduces material volatilization and prevents contamination of the cathode surface.
(3) Stable electrical resistance: Optimized wire diameter and coiling structure ensure consistent resistance for precise temperature control.
(4) Strong structural stability: Doping optimization improves creep resistance and vibration tolerance for long term operation under demanding conditions.
Specifications of CTIA’s Tungsten Heater
Material: High purity tungsten wire with purity ≥99.95% or doped tungsten wire
Wire diameter: 0.1~0.8 mm
Structure: Spiral, hairpin, and customized geometries
Surface treatment: Electrolytic polishing or vacuum high temperature degassing
CTIA GROUP specializes in tungsten heater manufacturing with over 30 years of experience. Systematic optimization of wire diameter, doping composition, geometry, effective heating length, and lead configuration is carried out based on spatial constraints and vacuum thermal field distribution. Full-cycle customization covers material selection, structural design, and precision manufacturing.
For any inquiry, please contact tungsten heater manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
WeChat:
More info>>
1.Tungsten heater quotation table
2. Catalog of tungsten heater
3. Tungsten heater models
4. Stranded tungsten wire for making tungsten heater