摘要
A compact beam-position monitor was constructed using a linear contact image sensor attached to a plastic scintillator and tested using a 230 MeV proton beam. The results indicate that the beam position can be obtained in real-time, and the beam position with a precision of up to 0.03 mm. The compactness and high precision of the device hold considerable potential for it to be used as a beam-position monitor and offline, daily quality assurance monitor in hadron therapy.
The method can provide a high precision and high resolution beam position for flash irradiation in particle therapy in real-time.
The method using contact image sensor with scintillator does not require a long focal length for camera and it is free of image distortion.
The method can be integrated into medical particle accelerator for feedback control and daily quality assurance. (C) 2019 The Author(s). Published by Elsevier B.V.