The Belle II diamond detector for radiation monitoring and beam abort

Jin, Y.; Adamczyk, K.; Aihara, H.; Aziz, T.; Bacher, S.; Bahinipati, S.; Batignani, G.; Baudot, J.; Behera, P. K.; Bettarini, S.; Bilka, T.; Bozek, A.; Buchsteiner, F.; Casarosa, G.; Cervenkov, D.; Chen, Y. Q.; Corona, L.; Czank, T.; Das, S. B.; Dash, N.; de Marino, G.; Dolezal, Z.; Dujany, G.; Forti, F.; Friedl, M.; Ganiev, E.; Gobbo, B.; Halder, S.; Hara, K.; Hazra, S.; Higuchi, T.; Irmler, C.; Ishikawa, A.; Jeon, H. B.; Joo, C.; Kaleta, M.; Kaliyar, A. B.; Kandra, J.; Kang, K. H.; Kapusta, P.; Kodys, P.; Kohriki, T.; Kumar, M.; Kumar, R.; Kvasnicka, P.; la Licata, C.; Lalwani, K.; Lee, S. C.; Y. B., Li; Libby, J.; Maity, S.; Mayekar, S. N.; Mohanty, G. B.; Grimaldo, J. A. M.; Morii, T.; Nakamura, K. R.; Natkaniec, Z.; Onuki, Y.; Ostrowicz, W.; Paladino, A.; Paoloni, E.; Park, H.; Rao, K. K.; Ripp-Baudot, I.; Rizzo, G.; Rout, N.; Sahoo, D.; Schwanda, C.; Suzuki, J.; Tanaka, S.; Tanigawa, H.; Thalmeier, R.; Tsuboyama, T.; Uematsu, Y.; Verbycka, O.; Vitale, L.; Wan, K.; Webb, J.; Wiechczynski, J.; Yin, H.; Zani, L.; Zhang, T.

The SuperKEKB electron-positron collider at the KEK laboratory in Japan aims to achieve a maximum luminosity 50× higher than its predecessors KEKB and PEPII, positioning the Belle II experiment at the forefront of searches for non-standard-model physics in the next decade. High collision intensity implies high beam-induced radiation, which can damage essential Belle II sub-detectors and SuperKEKB components. Twenty-eight diamond sensors, read-out by purpose-built electronics, are installed in the interaction region to measure radiation and prevent damage. This talk introduces the system features and discusses its performance in early Belle II data taking.