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Noji, S.; Zegers, R. G.T.; Berg, G. P.A.; Amthor, A. M.; Baumann, T.; Bazin, D.; Burkhardt, E. E.; Cortesi, M.; DeKamp, J. C.; Hausmann, M.; Portillo, M.; Potterveld, D. H.; Sherrill, B. M.; Stolz, A.; Tarasov, O. B.; York, R. C.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 10/2022Journal Article
A High Rigidity Spectrometer (HRS) has been designed for experiments at the Facility for Rare-Isotope Beams (FRIB) at Michigan State University (MSU). The HRS will allow experiments to be performed with the most exotic neutron-rich isotopes at high beam energies (≳100 MeV/u). The HRS consists of an analysis beamline called the High-Transmission Beamline (HTBL) and the spectrometer proper called the Spectrometer Section. Here, the maximum magnetic rigidity of the HRS is 8 Tm, which corresponds to the rigidities at which rare-isotope beams are optimally produced at FRIB. The resolving power, angular acceptance, and momentum acceptance are set to match the anticipated scientific program. An ion-optical design developed for the HRS is described in detail, along with the specifications of the associated magnet and detector systems.
