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ISSN - 01689002, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2011, vol. 640, p. 123-132

A novel spectrometer for studying exotic nuclei with the electron/ion collider ELISe

Berg G. P A, Adachi T., Harakeh M. N., Kalantar-Nayestanaki N., Wörtche H. J., Simon H., Koop I. A., Couder M., Fujiwara M.

A novel concept of an electron spectrometer developed for the ELISe facility is presented. This spectrometer will be constructed as a part of the international Facility for Antiprotons and Ion Research (FAIR) at GSI Helmholtzzentrum für Schwerionenforschung. The spectrometer is designed to analyze electron scattering at the ionelectron interaction region of the NESR and EAR colliding storage rings with a high resolution and a large solid angle. A pre-deflector with a zero-field central channel along the path of the intersecting beam allows the measurement of scattered electrons without interfering with the circulating beams. Ion-optical and magnet design calculations are presented to demonstrate the feasibility and achievement of realistic design specifications. © 2011 Elsevier B.V. All rights reserved.