Tungsten Alloy MLC Leaves

Tungsten alloy MLC leaves are precision beam-shaping components used in Multi-Leaf Collimator (MLC) systems for radiotherapy equipment. Independently movable leaves dynamically shape treatment fields according to target geometry, enabling precise field control and dose delivery while limiting radiation exposure to surrounding healthy tissue. CTIA’s tungsten alloy leaves combine high density, effective attenuation of high-energy X-rays and gamma rays, and strong mechanical stability, supporting precise positioning and reliable long-term operation with higher shielding efficiency than conventional lead leaves.

1. Features of CTIA’s Tungsten Alloy MLC Leaves
(1) High Radiation Attenuation: Attenuate high-energy X-rays and gamma rays effectively with density of 16.7–18.8 g/cm³, reducing radiation transmission and improving shielding performance.
(2) Excellent Mechanical Stability: Maintain strength, hardness, wear resistance, and dimensional stability under high-radiation and high-frequency movement, with thermal expansion coefficient of approximately 5.2–6.1 × 10⁻⁶/°C.
(3) Precision Structural Design: Incorporate tongue-and-groove, single-focusing, double-focusing, and focused leaf-tip designs to reduce penumbra and interleaf leakage while improving beam control accuracy.
(4) High Structural Precision: Achieve accurate leaf dimensions, surface quality, and stable movement through precision machining, grinding, and polishing, meeting high-precision MLC positioning requirements.

2. Applications of CTIA’s Tungsten Alloy MLC Leaves
(1) Medical Radiotherapy: Used in MLC systems for conformal radiotherapy, Intensity-Modulated Radiation Therapy (IMRT), and Volumetric Modulated Arc Therapy (VMAT).
(2) Nuclear Medicine Equipment: Used for beam shaping and scatter suppression to improve imaging accuracy and reduce radiation exposure.
(3) Industrial Inspection and Research Equipment: Used in radiation control systems for Non-Destructive Testing (NDT), high-energy physics experiments, and related applications.

3. Specifications of CTIA’s Tungsten Alloy MLC Leaves
(1) Grades: 90WNiFe, 92.5WNiFe, 95WNiFe, 97WNiFe
(2) Tungsten Content: 90%–97%
(3) Density: 17.0–18.6 g/cm³
(4) Dimensions: Length 100–150 mm, width 2.5–10 mm, height 50–90 mm; customizable
(5) Surface Treatment: Fine grinding, polishing, deburring
(6) Structures: single-focusing, double-focusing, tongue-and-groove, rounded leaf tip, focused leaf tip

CTIA GROUP draws on nearly 30 years of tungsten alloy manufacturing expertise to produce precision MLC leaves for radiotherapy, nuclear medicine, and industrial inspection systems. CTIA applies powder metallurgy and precision machining to control material grade, density, leaf geometry, critical dimensions, and surface quality, providing customized leaf configurations that meet specific beam-shaping, shielding, positioning, and assembly requirements.

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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