Capture, acceleration and bunching rf systems for the MEIC booster and storage rings

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

OSTI ID:1221892

Wang, Shaoheng ^[1]; Guo, Jiquan ^[1]; Lin, Fanglei ^[1]; Morozov, Vasiliy ^[1]; Rimmer, Robert A. ^[1]; Wang, Haipeng ^[1]; Zhang, Yuhong ^[1]

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1. Jefferson Lab, Newport News, VA

The Medium-energy Electron Ion Collider (MEIC), proposed by Jefferson Lab, consists of a series of accelerators. The electron collider ring accepts electrons from CEBAF at energies from 3 to 12 GeV. Protons and ions are delivered to a booster and captured in a long bunch before being ramped and transferred to the ion collider ring. The ion collider ring accelerates a small number of long ion bunches to colliding energy before they are re-bunched into a high frequency train of very short bunches for colliding. Two sets of low frequency RF systems are needed for the long ion bunch energy ramping in the booster and ion collider ring. Another two sets of high frequency RF cavities are needed for re-bunching in the ion collider ring and compensating synchrotron radiation energy loss in the electron collider ring. The requirements from energy ramping, ion beam bunching, electron beam energy compensation, collective effects, beam loading and feedback capability, RF power capability, etc. are presented. The preliminary designs of these RF systems are presented. Concepts for the baseline cavity and RF station configurations are described, as well as some options that may allow more flexible injection and acceleration schemes.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1221892
• Report Number(s): JLAB-ACC-15-2080; DOE/OR/23177-3423
• Resource Relation: Conference: IPAC 2015, 3-8 May 2015. Richmond, Virginia, USA
• Country of Publication: United States
• Language: English