TY - JOUR AU - Woo, M. K. AB - This work describes a method to obtain “star-shots” of the mechanical and optical isocenters of linear accelerators, similar to the star-shots of radiation isocenters normally obtained using films. In this method a digital camera is connected to a personal computer so that multiply exposed images can be taken at a fixed camera position. A mechanical pointer or a wire aligned along the optical axis can then be imaged by the camera. Multiple exposures at varying gantry angles are then superimposed on a digital image which can be analyzed by the computer to give a high-resolution star-shot. The method provides a convenient way for a linear accelerator quality assurance procedure. © ; 2002 American Association of Physicists in Medicine. TI - A personal-computer-based method to obtain “star-shots” of mechanical and optical isocenters for gantry rotation of linear accelerators; JF - Medical Physics DO - 10.1118/1.1521937 DA - 2002-12-01 UR - https://www.deepdyve.com/lp/american-association-of-physicists-in-medicine/a-personal-computer-based-method-to-obtain-star-shots-of-mechanical-tFPL49Dg92 SP - 2753 EP - 2755 VL - 29 IS - 12 DP - DeepDyve ER -