Speaker
Description
This lecture introduces the fundamental principles and practical aspects of radiofrequency (RF) cavities in particle accelerators, with emphasis on their role in overcoming intensity limitations in hadron beams. Starting from the historical development of early accelerators, the presentation traces the evolution of RF acceleration, outlines the theoretical foundations, and describes the essential technologies. Special attention is given to the Radiofrequency Quadrupole (RFQ), a key structure for low-energy hadron acceleration, with design principles illustrated through the ESS RFQ and the ISIS FETS RFQ as physics and engineering case studies. Practical cavity designs are reviewed for both normal-conducting structures and superconducting cavities. Real-world examples are discussed from facilities including ESS, CERN, and ISIS
