Tungsten Alloy Collimator in Medical Accelerator

Tungsten alloy collimator in medical accelerator is precision beam control component installed in treatment head of Medical Linear Accelerator (LINAC). CTIA’s tungsten alloy collimator limits and shapes high-energy X-ray or electron beams to form treatment fields according to treatment plans. Precise control of beam direction and field dimensions helps reduce unnecessary radiation to surrounding healthy tissue while improving treatment-field accuracy and dose control.

1. Features of CTIA’s Tungsten Alloy Collimator in Medical Accelerator
(1) High Density and High Shielding Efficiency: Attenuate high-energy X-rays and scattered radiation with a density of 16.7–18.8 g/cm³, reducing leakage radiation and supporting effective beam control within limited space.
(2) Compact Structure and Low Space Occupancy: Reduce collimator thickness and overall dimensions through high specific gravity properties, fitting space-constrained treatment head assemblies.
(3) High Strength and Motion Stability: Withstand repeated leaf movement through tensile strength of up to 700–1200 MPa, combined with high hardness, wear resistance, and dimensional stability for reliable long-term operation.
(4) Radiation Resistance and Stable Performance: Maintain structural integrity and dimensional stability under prolonged high-energy radiation exposure, supporting consistent beam control.
(5) Precision Machining and Accurate Field Control: Achieve tolerances of up to ±0.01 mm in leaf ends, side profiles, and collimation apertures, improving treatment-field edge definition.
(6) Optimized Structure and Low Leakage: Reduce interleaf leakage and off-axis radiation through optimized leaf thickness, end-face geometry, and leaf interfaces.

2. Applications of CTIA’s Tungsten Alloy Collimator in Medical Accelerator
(1) Primary Collimator: Limit the maximum beam divergence through a fixed tungsten alloy collimation structure positioned at the front of the treatment head, reducing initial scattered radiation.
(2) Multi-Leaf Collimator (MLC): Shape irregular treatment fields through independently driven tungsten alloy leaves, matching field geometry to tumor targets for Three-Dimensional Conformal Radiation Therapy (3D-CRT), Intensity-Modulated Radiation Therapy (IMRT), and stereotactic radiotherapy.
(3) Secondary Collimator: Further define and optimize the radiation field downstream of the primary collimation system, improving field-edge accuracy and reducing scatter.

3. Specifications of CTIA’s Tungsten Alloy Collimator in Medical Accelerator
(1) Materials: W-Ni-Fe, W-Ni-Cu
(2) Tungsten Content: 90%–97%
(3) Density: 16.7–18.8 g/cm³
(4) Types: Fixed collimators, MLC leaves, secondary collimator components, and custom-shaped shields
(5) Dimensions: Leaf width 2.5–10 mm; positioning accuracy ≤1 mm; customizable

CTIA has nearly 30 years of experience in tungsten alloy manufacturing, specializing in design, precision processing, and production of tungsten alloy collimators and related shields. CTIA combines material selection, powder metallurgy, precision forming, and machining capabilities to supply customized collimation assemblies that meet radiotherapy requirements for beam shaping, dose modulation, and long-term operational stability.

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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