Collimator comes with four sets of leaves Dec 10, 2007

TrackLeaf, a micro Multi Leaf Collimator, is unique in having four sets of leaves, instead of the conventional two. This patented configuration allows for more precise target conformity for IMRT (intensity modulated radiotherapy), IMAT (Intensity Modulated Arc Therapy), while offering a much faster response time needed for dynamic, image-guided treatments.

TrackLeaf is a key component of our TrackBeam real-time target tracking device.

Cross-Leaves TrackLeaf Advantages:

High Resolution Beam Steering

Fast Tracking

For parallel leaves, aperture motion is determined by the time required to cover/uncover target edges parallel to leaf motion and by leaf speed. Since there aren't any such target edges for cross leaf – aperture formation, time is consequently several times faster than that of a parallel leaf collimator.

In addition, cross leaves smaller weight and lower friction enable high leaf speed and reliability

Improved Conformity

Cross leaf conforms better to complicated targets (e.g., doubly concave) and eliminates collimator rotation. Conformity is significantly improved even for a regular shape, e.g.,

Omni Directional Dynamic Wedges

The cross leaves architecture enables simultaneous aperture and dynamic wedges formation. It enables seamless fields’ abutment by exposing adjacent overlapping sub-fields with complementary dynamic wedges at the seam.

Low Interleaf Leakage

Cross leaves have inherently lower inter-leaves leakage.

More products from this company

• AccuChanger for remote collimator control Dec 19, 2007
• CrossPlan eases IGRT treatment planning Dec 12, 2007
• TrackBeam delivers dynamic image guidance Dec 10, 2007