Polarized Ion Beams in Figure-8 Rings of JLab's MEIC
The Medium-energy Electron-Ion Collider (MEIC) proposed by Jefferson Lab is designed to provide high polarization of both colliding beams. One of the unique features of JLab's MEIC is figure-8 shape of its rings. It allows preservation and control of polarization of all ion species including small-anomalous-magnetic-moment deuterons during their acceleration and storage. The figure-8 design conceptually expands the capability of obtaining polarized high-energy beams in comparison to conventional designs because of its property of having no preferred periodic spin direction. This allows one to control effectively the beam polarization by means of magnetic insertions with small field integrals. We present a complete scheme for preserving the ion polarization during all stages of acceleration and its control in the collider's experimental straights.
- 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; AC02-06CH11357
- OSTI ID:
- 1164492
- Report Number(s):
- JLAB-ACP-14-1896; DOE/OR/23177-3110
- Resource Relation:
- Conference: IPAC' 14, June 15-20, 2014, Dresden, Germany
- Country of Publication:
- United States
- Language:
- English
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Polarization preservation and control in a figure-8 ring
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