Tungsten Alloy Radiation Shielding in Fusion Device

Tungsten alloy radiation shielding in fusion device refers to high-density protective components installed in specific areas of fusion devices such as Tokamaks, primarily providing localized shielding for diagnostic equipment, detectors, ports, and other sensitive components against neutrons, gamma rays, and high-energy particle radiation generated during fusion processes. Radiation protection in fusion devices typically combines different materials according to neutron energy spectra, thermal loads, and available installation space, with tungsten alloy suited to high-density localized shielding, structural protection, and high-temperature areas.

1. Why Choose Tungsten Alloy for Fusion Device Shielding?
(1) Effective Radiation Attenuation: Reduces gamma-ray exposure through high atomic number of tungsten and tungsten alloy density of 16.7–18.8 g/cm³, allowing thinner and more compact shielding structures for space-constrained areas such as ports and diagnostic equipment.
(2) High-Temperature Load Resistance: Withstands localized high temperatures and substantial thermal loads, supported by good thermal stability and high-temperature strength.
(3) Long-Term Irradiation Resistance: Maintains structural integrity and material performance under prolonged exposure to neutrons, gamma rays, and high-energy particles.
(4) Particle Impact Resistance: Resists thermal shock and particle bombardment near plasma-facing regions, reducing material damage caused by high-energy particles and heat flux.
(5) Complex Structural Adaptability: Machinable into shielding blocks, plates, rings, diagnostic shields, and collimator structures tailored to intricate internal spaces and mounting interfaces of fusion systems.
(6) Multi-Material Shielding Integration: Available in tungsten-heavy alloys such as W-Ni-Fe and W-Ni-Cu, which can be combined with stainless steel, boron carbide (B₄C), and other materials to optimize composite protection against mixed-radiation environments.

2. Applications of CTIA’s Tungsten Alloy Radiation Shielding in Fusion Device
(1) Localized Protection for Diagnostic Equipment: Installed around diagnostic ports, detectors, and related equipment to reduce neutron and gamma-ray exposure to detection components and support stable diagnostic system operation.
(2) Protection in High Thermal Load Areas: Used in localized protective structures near plasma-facing components such as the first wall and divertor to withstand heat flux and particle bombardment.
(3) Radiation Protection in Port Areas: Used for localized shielding around diagnostic ports, observation channels, equipment interfaces, and other penetrations, reducing radiation exposure while accommodating equipment installation and signal transmission requirements.
(4) Localized Shielding for Sensitive Components: Installed around detectors, sensors, and other radiation-sensitive components to reduce radiation flux and accumulated dose, minimizing the impact of irradiation on equipment performance.

3. Specifications of CTIA’s Tungsten Alloy Radiation Shielding in Fusion Device
(1) Material: W-Ni-Fe, W-Ni-Cu, and other tungsten heavy alloys
(2) Tungsten Content: 90%–97%
(3) Density: 16.7–18.8 g/cm³
(4) Structures: Shielding blocks, shielding plates, shielding rings, diagnostic protective parts, collimation structures, and custom-shaped components
(5) Dimensions: Customized according to customer requirements

CTIA GROUP has nearly 30 years of experience in tungsten alloy manufacturing and maintains capabilities in powder metallurgy and precision machining. CTIA manufactures shielding blocks, shielding rings, diagnostic protective parts, and complex custom-shaped components with precise dimensions and structural configurations, meeting material performance, machining accuracy, and long-term stability requirements of fusion devices.

For any inquiry, please contact tungsten alloy manufacturer: CTIA GROUP

Email: sales@chinatungsten.com

Tel: 0086 592 5129696 / 0086 592 5129595

Website: tungsten-alloy.com

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