A computing module for speeding up the bunch-by-bunch measurement of transverse positions and transverse profiles within injection period

Abstract

The Multi-Bend-Achromat (MBA) structure of the Diffraction-limited Synchrotron Light Source (DLSR) makes the dynamic range of its injection significantly smaller, thus posing a more demanding challenge for the stable injection of beams. To investigate the possible instabilities during the injection process, multi-anode photomultiplier tubes (MAPMT) are used in bunch-by-bunch measurements to obtain the transverse positions and transverse profiles of the bunched beams as they are injected. However, the data processing time witnessed in prior measurements posed a significant challenge in obtaining this information in time, thus failing to meet the stringent demands of online measurements. Consequently, this paper proposes one computing module, engineered to enhance the speed of bunch-by-bunch measurements of transverse positions and profiles. This solution is capable of delivering measurement results for each bunch in the filling pattern, all within the specified injection period.