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TY - CONF AU - Furukawa, K. AU - Enomoto, Y. AU - Kaji, H. AU - Katagiri, H. AU - Kurashina, M. AU - Mikawa, K. AU - Miura, T. AU - Miyahara, F. AU - Natsui, T. AU - Satake, I. AU - Satoh, M. AU - Seimiya, Y. AU - Sugimura, H. AU - Suwada, T. ED - Schaa, Volker RW ED - Costa, Isidre ED - FernÃ¡ndez, David ED - Matilla, Ãscar TI - Upgrade of KEK Electron/positron Linac Control System for the Both SuperKEKB and Light Sources J2 - Proc. of ICALEPCS2017, Barcelona, Spain, 8-13 October 2017 C1 - Barcelona, Spain T2 - International Conference on Accelerator and Large Experimental Control Systems T3 - 16 LA - english AB - KEK injector linac has delivered electrons and positrons for particle physics and photon science experiments for more than 30 years. It is being upgraded for the SuperKEKB project, which aims at a 40-fold increase in luminosity over the previous project of KEKB, in order to increase our understanding of flavour physics. This project requires ten-times smaller emittance and five-times larger current in injection beam from the injector. And many hardware components are being tested and installed. Even during the 6-year upgrade, it was requested to inject beams into light sources storage rings of PF and PF-AR. Furthermore, the beam demanding approaches from those storage rings are different. SuperKEKB would demand highest performance, and unscheduled interruption may be acceptable if the performance would be improved. However, light sources expect a stable operation without any unscheduled break, mainly because most users run experiments for a short period. In order to deal with the both requirements several measures are taken for operation, construction and maintenance strategy including simultaneous top-up injections. PB - JACoW CP - Geneva, Switzerland SP - 1257 EP - 1260 KW - ion KW - experiment KW - injection KW - linac KW - electron DA - 2018/01 PY - 2018 SN - 978-3-95450-193-9 DO - 10.18429/JACoW-ICALEPCS2017-THMPL02 UR - http://jacow.org/icalepcs2017/papers/thmpl02.pdf ER -