QUASAR™ MLC Beam Geometry Phantom

The QUASAR™ MLC Beam Geometry Phantom is designed to address the complex non-dosimetric, beam geometry and beam imaging features of treatment planning systems.

IMRT and other conformal therapies have led to increased demands on physicists responsible for commissioning and maintaining radiotherapy equipment. AAPM Task Group reports, including TG 66(1), TG 53(2), and TG 51(3), make clear recommendations regarding the importance of both dosimetric and non-dosimetric testing. The QUASAR™ MLC Beam Geometry Phantom is a useful tool in machine commissioning, system characterization, and routine QA protocols.

“The modern RTP process includes many aspects not directly related to dose calculations. Therefore, the RTP QA program must also handle these important non-dosimetric issues… for it is in the non-dosimetric issues that much of the complexity of modern treatment planning systems is manifest.” TG53 Report p. 1782-83 (2)