Development of a water-cooled scintillation screen for high-current beam profiling

Abstract This study aimed to develop a scintillation screen monitor for high-current ion beam profiling. It was observed that the conventional scintillation screen is unable to meet the requirements of medium- and high-power accelerators due to the beam damaging the screen and preventing it from functioning properly. Consequently, a water-cooled tantalum-copper composite plate was adopted as the target head and coated with potassium bromide powder. The scintillating screen monitor employs the direct intercept method to observe the beam profile and position recorded by a CCD camera. A water-cooled beam profile monitoring system was manufactured and subjected to preliminary experimental tests on an electron accelerator. The results indicate that the screen monitor exhibits good luminescence, and high resolution, and is capable of effectively evaluating the beam position and profile.