Energy-efficient operation of a booster RF system for Taiwan light source operated in top-up mode》.pdfVIP

Nuclear Instruments and Methods in Physics Research A 775 (2015) 46–53 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research A journal homepage: /locate/nima Energy-efficient operation of a booster RF system for Taiwan light source operated in top-up mode Meng-Shu Yeh, Chaoen Wang n, Lung-Hai Chang, Fu-Tsai Chung, Tsung-Chi Yu, Ming-Chyuan Lin, Ling-Jhen Chen, Tz-Te Yang, Mei-Hsia Chang, Yu-Han Lin, Ming-Hsun Tsai, Chih-Hung Lo, Zong-Kai Liu National Synchrotron Radiation Research Center, Hsinchu, Taiwan a r t i c l e i n f o a b s t r a c t Article history: Contemporary light sources operate in a top-up mode to maintain their photon intensity quasi-constant Received 18 August 2014 so as to improve significantly the thermal stability of the photon beam and to maximize ultimately the Received in revised form average photon flux at a designed maximum operational beam current. Operating in a top-up mode 25 November 2014 requires frequent beam injection from the synchrotron booster to the storage ring of the light source, but Accepted 26 November 2014 Available online 4 December 2014 the injection intervals occupy only a tiny portion of the operational time of the integrated machine. To maintain a high operational reliability, the booster RF system practically operates necessarily under Keywords: injection conditions