SU-GG-T-204: Feasibility Study of On-Site IMRT Audit in Japan

Purpose: The purpose of this study is to establish on‐site IMRT audit in Japan. Method and materials: We developed IMRT audit system using specialized water phantom. The phantom can be used to calibrate dose of reference condition and to validate monitor unit of conventional and IMRT field. In the specialized water phantom, detector can be set up at various positions, and various detectors can be used by replacing sleeves. The protocol of IMRT...