System and method for positioning an electronic portal imaging device

摘要

A portal imaging device positioning apparatus includes a portal imaging device positioner (255) attachable to a support (256). The portal imaging device positioner (255) is adapted to vertically adjust an imaging panel (250) in a treatment or dosimetry mode to receive radiation through a body in the patient plane (8a), and adjust the panel in a physics mode to receive radiation at the patient plane (8a).