Harmonic Resonant Kicker Design for the MEIC Electron Circular Cooler Ring

Conference · Tue Sep 01 00:00:00 EDT 2015

OSTI ID:1223481

Huang, Yulu ^[1]; Wang, Haipeng ^[2]; Rimmer, Robert A. ^[2]

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1. Institute of Modern Physics, CAS, Lanzhou (China); UCAS, Beijing (China)
2. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

Bunched-beam electron cooling of the high-energy ion beam emittance may be a crucial technology for the proposed Medium energy Electron Ion Collider (MEIC) to achieve its design luminosity. A critical component is a fast kicker system in the Circular Ring (CR) that periodically switches electron bunches in and out of the ring from and to the driver Energy Recovery Linac (ERL). Compared to a conventional strip-line type kicker, a quarter-wave resonator (QWR)-based deflecting structure has a much higher shunt impedance and so requires much less RF power. The cavity has been designed to resonate simultaneously at many harmonic modes that are integer multiples of the fundamental mode. In this way the resulting waveform will kick only a subset of the circulating bunches. In this paper, analytical shunt impedance optimization, the electromagnetic simulations of this type of cavity, as well as tuner and coupler concept designs to produce 5 odd and 5 even harmonics of 47.63MHz will be presented, in order to kick every 10th bunch in a 476.3 MHz bunch train.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1223481
• Report Number(s): JLAB-ACC-15-2035; DOE/OR/23177-3548; TRN: US1601447
• Resource Relation: Conference: IPAC 2015, Richmond, VA (United States), 3-8 May 2015
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
KICKER MAGNETS
JEFFERSON LAB MEIC
DESIGN
BEAM BUNCHING
RESONANCE
BEAM DYNAMICS
COMPARATIVE EVALUATIONS
ELECTRON COOLING
LINEAR ACCELERATORS
MHZ RANGE 100-1000
CAVITY RESONATORS
HARMONICS
ELECTRIC IMPEDANCE
ION BEAMS
PERIODICITY
BEAM EMITTANCE
ENERGY RECOVERY
WAVE FORMS
OPTIMIZATION
SIMULATION