STATUS OF THE JLEIC ION COLLIDER RING DESIGN

Conference · Sun Jul 01 00:00:00 EDT 2018

DOI:https://doi.org/10.18429/JACoW-IPAC2018-MOPML002· OSTI ID:1473693

Wei, Guohui ^[1]; Morozov, Vasiliy ^[1]; Lin, Fanglei ^[1]; Zhang, Yuhong ^[1]; Cai, Y. ^[2]; Nosochkov, Y.M. ^[2]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. SLAC National Accelerator Lab., Menlo Park, CA (United States)

We present an update on the lattice design and beam dynamics study of the ion collider ring of JLEIC (Jefferson Lab Electron Ion Collider). The collider ring consists of two 261.7 degree arcs connected by two straight sections crossing each other. One of the straights houses an interaction region (IR) and is shaped to make a 50 mrad crossing angle with the electron beam at the interaction point (IP) to meet physics requirements. The forward acceptance requirements downstream of the IP in the ion direction lead to an asymmetric IR lattice design. The detector solenoid effects and the multipole fields of the IR magnets further complicate this picture. In this paper, compensation of the detector solenoid effects is considered together with orbit correction and multipole effects. We also study local compensation of the magnet multipoles using dedicated multipole correctors. And an optimization of the betatron tunes is also presented.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177; AC02-06CH11357; AC02-76SF00515
• OSTI ID: 1473693
• Report Number(s): JLAB-ACP-18-2815; DOE/OR/23177-4549
• Resource Relation: Conference: IPAC 2018, 29 Apr - 04 May 2018. Vancouver, BC Canada
• Country of Publication: United States
• Language: English