Why Choose Tungsten Heavy Alloy Material for Multi-Leaf Collimators

Tungsten heavy alloy is ideal for shielding against X-rays and gamma radiation. It reduces the physical size of shielding components without reducing their effectiveness and requires only two-thirds the thickness of lead while delivering the same shielding results.

This is extremely important in linear accelerator medical systems, which utilize
Multi-Leaf Collimators (MLC) to regulate the beam. The sophisticated shielding properties of tungsten heavy alloy for Multi-Leaf Collimators potentially increases the number of leafs in a collimator and enables a greater precision beam that targets only the area of the patient that requires treatment.

The chart below compares the thickness of (tungsten heavy alloy) WHA to tungsten (W), lead (Pb), and molybdenum (Mo), illustrating that thinner leafs can be used to obtain the same shielding properties as thicker leafs, enabling more leafs in the same space which improves beam precision.

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