Goals

The workshop is aimed at discussing the science program, as well as the design and construction of the High Rigidity Spectrometer (HRS) and associated infrastructure stationed at the Facility of Rare Isotope Beams (FRIB). The HRS will provide FRIB users with access to beams of the rarest isotopes at the highest yields produced by in-flight fragmentation. It will also provide a flexible and efficient environment for performing state-of-the-art experiments with a wide variety of auxiliary detection systems, using fast rare isotope beams transported with minimal losses from the FRIB fragment separator. About 50% of the NSAC RIB Taskforce benchmarks require experiments with fast beams, and the foreseen program with the HRS at FRIB will also maximize the output from other high-priority and very significant investments by DOE and NSF, such as GRET(IN)A and MoNA-LISA.

In their review of equipment needs for FRIB, the FRIB Scientific Advisory Committee has consistently recognized the High-Rigidity Spectrometer (HRS) as one of the flagship projects. It is important to present the scientific opportunties to the broader scientific community and provide input for the NSAC Long Range Plan. Therefore, the workshop will be the start of the writing of a white-paper for that purpose and contributions from interested researchers with diverse interests is critical.

As input for the workshop, pre-conceptual, first-order ion-optical design studies have been performed to provide a basis for discussions on technical needs and boundary conditions, as well as scientific opportunties. Please refer to this document as a guide for properties of the HRS. They can change significantly on the basis of expressed needs and we are very interested to learn about ideas that can further enhance the capabilities and scienctific output. During the workshop several alternatives preconceptual designs will be discussed