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ISSN - 01689002, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2011, vol. 659, p. 198-206

Constant-gap spectrometer design for the electron/ion collider ELISe

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

For the study of electron-scattering off radioactive nuclei, the ELISe spectrometer will be constructed as a part of the Facility of Antiprotons and Ion Research (FAIR) in Darmstadt. A conceptional design of a spectrometer with a clam-shell gap was presented before. Here, we will present an improved design with a pre-deflector with a constant gap. Such a pre-deflector is not only simpler to construct but also provides larger angle acceptances in the forward-angle range compared to those with the clam-shell design. © 2011 Elsevier B.V. All rights reserved.