Verification of scanned ion beams using a fluorescent screen and a CCD camera at HIMAC

A beam verification system, which consists of a fluorescent screen and a CCD camera, has been developed for the scanned ion beams at HIMAC. The 2D relative dose distributions were obtained straightforward from the brightness on screen and the flatness of the irradiation field. We plan to use this verification system for the QA process of new particle-therapy research facilities at HIMAC. Therefore, we designed an optimized hardware geometry and developed a more user friendly control part. This system was successfully checked on the prototype scanning system at HIMAC. In the conference, we will report on details how to perform on the QA process.PTCOG49国際会