Tungsten Alloy Grids in Gamma Knife

Tungsten alloy grids in gamma knife are key beam-control components in Stereotactic Radiosurgery (SRS), primarily used for gamma-ray collimation, focusing, and shielding. CTIA’s tungsten alloy grids use high-density tungsten alloys with precision collimation apertures or Multi-Leaf Collimator (MLC) structures to precisely control cobalt-60 (Co-60) gamma-ray beams, concentrate radiation on treatment targets, and reduce radiation leakage and scattering, improving treatment accuracy and safety.

1. Features of CTIA’s Tungsten Alloy Grids in Gamma Knife
(1) High Gamma-Ray Shielding Efficiency: Attenuate gamma rays effectively with density of 16.7–18.8 g/cm³ and tungsten atomic number (Z=74), reducing leakage and scattered radiation.
(2) Precise Radiation Collimation: Control beam directions through micro-aperture collimation structures or Multi-Leaf Collimator (MLC) leaves, enabling multiple gamma-ray beams to converge accurately at the isocenter.
(3) High-Precision Structural Machining: Supports manufacturing of complex geometries such as collimation pinholes and grid leaves, capable of processing 1–8 mm collimation apertures and 2.0–3.8 mm grid leaf widths to satisfy diverse radiation field shaping needs.
(4) Compact Structure and High Strength: Reduce component dimensions through high density while maintaining structural stability with tensile strength of 700–1000 MPa.
(5) Precision Machinability: Support precision machining, wire Electrical Discharge Machining (wire EDM), Electrical Discharge Machining (EDM), grinding, and polishing for high-precision collimation components.
(6) Thermal Stability: Maintain dimensional stability during long-term operation through thermal expansion coefficient of approximately 4–6 × 10⁻⁶/°C, supporting consistent beam control accuracy.

2. Applications of CTIA’s Tungsten Alloy Grids in Gamma Knife
(1) Gamma Knife Collimation Systems: Used in collimator heads, collimators, and shielding components to control Co-60 gamma-ray directions through precision channels for accurate target irradiation.
(2) Stereotactic Radiosurgery: Used in head and body stereotactic radiosurgery systems to optimize field distribution and reduce radiation exposure to surrounding healthy tissue.
(3) Multi-Leaf Collimator Systems: Used in computer-controlled beam control systems, where MLC leaves dynamically shape treatment fields according to target contours.
(4) Radiation Therapy Shielding Components: Used in shielding rings, collimation components, and other protective structures to reduce scattered radiation and support safe equipment operation.

3. Specifications of CTIA’s Tungsten Alloy Grids in Gamma Knife
(1) Materials: W-Ni-Fe, W-Ni-Cu
(2) Tungsten Content: 90%–97%
(3) Density: 16.7–18.8 g/cm³
(4) Dimensions: Customizable

With nearly 30 years of tungsten alloy manufacturing experience, CTIA GROUP specializes in precision manufacturing of tungsten alloy grids and related shielding parts for gamma knife systems. CTIA controls grid geometry, collimation apertures, critical dimensions, and assembly interfaces to meet system requirements, supporting precise beam focusing, consistent shielding performance, and reliable long-term operation.

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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