Tungsten Alloy Multi-Leaf Grids

1. What Are Tungsten Alloy Multi-Leaf Grids?
Tungsten alloy multi-leaf grids, also known as tungsten alloy multi-leaf collimators, are precision beam control components installed in medical linear accelerator heads. Multiple independently movable high-density tungsten alloy leaves use computer-controlled positioning to block and shape high-energy X-ray beams, forming irregular radiation fields that conform to tumor target areas. CTIA’s tungsten alloy multi-leaf grids serve as key beam-shaping components in Three-Dimensional Conformal Radiation Therapy (3D-CRT), Intensity-Modulated Radiation Therapy (IMRT), and Volumetric Modulated Arc Therapy (VMAT), combining effective radiation attenuation, and lead-free materials to replace conventional irregular lead blocks in medical linear accelerators.

2. Features of CTIA’s Tungsten Alloy Multi-Leaf Grids
(1) Precise Field Shaping: Independently movable leaves work together to form radiation fields closely conforming to irregular tumor target areas, improving target conformity.
(2) Effective Radiation Shielding: Density of 16.7–18.8 g/cm³ provides effective attenuation of high-energy X-rays, reducing radiation transmission and leakage through and between leaves.
(3) High-Precision Motion Control: Independently driven and precisely positioned leaves support 3D-CRT, IMRT, VMAT, and other treatment modes.
(4) Structural Stability: High strength, wear resistance, and low thermal expansion support repeated motion, precision assembly, and long-term operation.
(5) Lead-Free Composition: Lead-free tungsten alloy reduces use of toxic heavy metals while maintaining effective radiation shielding.

3. Applications of CTIA’s Tungsten Alloy Multi-Leaf Grids
(1) Tumor Radiotherapy: Used in medical linear accelerators for radiation field shaping and dose modulation in 3D-CRT, IMRT, and VMAT.
(2) Stereotactic Radiotherapy: Used in Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiation Therapy (SBRT) to support high-precision irradiation of small target volumes in areas such as the brain and lungs.
(3) Industrial and Scientific Research: Used in industrial CT, X-ray inspection, and radiation experimental equipment to control radiation beam shape and exposure coverage.

4. Specifications of CTIA’s Tungsten Alloy Multi-Leaf Grids
(1) Materials: W-Ni-Fe, W-Ni-Cu
(2) Density: 16.7–18.8 g/cm³
(3) Leaf Structures: Trapezoidal, focused, tongue-and-groove, customizable
(4) Leaf Dimensions: Number, width, thickness, length, customizable

CTIA GROUP brings nearly 30 years of tungsten alloy manufacturing expertise, specializing in precision machining of high-density tungsten alloy shielding. CTIA provides tungsten alloy multi-leaf grids with customized density, leaf structures, and dimensions based on radiotherapy equipment specifications and beam control requirements, supporting radiation attenuation, precise field shaping, accurate leaf positioning, and stable 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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