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 (≳100MeV/u). The HRS consists of an analysis beamline called the High-Transmission Beamline (HTBL) and the spectrometer proper called the Spectrometer Section. The maximum magnetic rigidity of the HRS is 8Tm, 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.
@article{arxiv.2207.05995,
title = {Design of the High Rigidity Spectrometer at FRIB},
author = {S. Noji and R. G. T. Zegers and G. P. A. Berg and A. M. Amthor and T. Baumann and D. Bazin and E. E. Burkhardt and M. Cortesi and J. C. DeKamp and M. Hausmann and M. Portillo and D. H. Potterveld and B. M. Sherrill and A. Stolz and O. B. Tarasov and R. C. York},
journal= {arXiv preprint arXiv:2207.05995},
year = {2022}
}