Trap-integrated fluorescence detection with silicon photomultipliers for sympathetic laser cooling in a cryogenic Penning trap - Wiesinger, M; Stuhlmann, F; Bohman, M; Micke, P; Will, C; Yildiz, H; Abbass, F; Arndt, BP; Devlin, JA; Erlewein, S; Fleck, M; Jaeger, JI; et al. (REVIEW OF SCIENTIFIC INSTRUMENTS, 2023)