Multileaf Collimator for Precise Radiotherapy Beam Shaping

Our multileaf collimator gives radiotherapy systems a stable base for field aperture control and conformal dose delivery. The device works as a standard MLC for LINAC platforms and supports beam shaping for photon therapy, VMAT and SRS.

The collimator uses 120 leaf pairs for a 40 mal 40 cm field. Inner leaves measure 40 mal 5 mm, outer leaves 2 mal 10 mm. The system reaches an overtravel of 101 % and a bank motion of 272.7 mm. The leaf height measures 80 mm and the complete unit weighs about 125 kg.

The motion hardware reaches leaf speeds above 65 mm pro Sekunde and accelerations above 1000 mm pro Quadratsekunde. A 40 kHz PID control loop holds the leaf path inside a tolerance below 0.1 mm. Integrated interlocks and error handling protect the beam limiting device during clinical operation.

An SDK for Windows und Linux, a complete MLC emulator and a service GUI support fast integration. Remote access and update functions shorten development and service tasks for OEMs and research teams.

This standard beam shaping device fits LINAC integration projects that need compact radiotherapy hardware with exact field control. The machined leaf geometry shapes the photon beam and protects healthy tissue through accurate dose distribution.