Conceptual MEIC electron ring injection scheme using CEBAF as a full energy injector

Conference · Tue Sep 01 04:00:00 EDT 2015

OSTI ID:1221906

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

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1. Jefferson Lab., Newport News, VA (United States)

The Medium-energy Electron-Ion Collider (MEIC) proposed by Jefferson Lab is planning to use the newly upgraded 12 GeV CEBAF 1497 MHz SRF CW recirculating linac as a full-energy injector for the electron collider ring. The electron collider ring is proposed to reuse the 476 MHz PEP-II RF system to achieve high installed voltage and high beam power. The MEIC electron injection requires 3-10 (or 12) GeV beam in 3-4µs long bunch trains with low duty factor and high peak current, resulting in strong transient beam loading for the CEBAF. In this paper, we propose an injection scheme that can match the two systems' frequencies with acceptable injection time, and also address the transient beam loading issue in CEBAF. The scheme is compatible with future upgrade to 952.6 MHz SRF system in the electron ring.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1221906
• Report Number(s): JLAB-ACC--15-2081; DOE/OR/23177--3421
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM DYNAMICS
CEBAF ACCELERATOR
ELECTRON BEAM INJECTION
GEV RANGE
GHZ RANGE 01-100
JEFFERSON LAB MEIC
RF SYSTEMS
RINGS
TRANSIENTS