SAGA - Preparing for a GISANS instrument at ESS – A Swedish Initiative

The purpose is to develop the scientific case and technical design to build a dedicated GISANS beamline at ESS, where the high flux unlocks unsurpassed space and time resolution of interfacial structures.

The aim is to 1. provide the science case; 2. benchmark design against existing GISANS capabilities; 3. identify new concepts for neutron instrument components 4. promote the technical development for scale-up; 5.) submit a successful instrument proposal.In SAGA Lund University, Uppsala University, KTH, Linköping University, Malmö University, LINXS, ESS, HIBEAM, other research institutions and industrial partners collaborate.

Tommy Nylander (PI, LU), Max Wolff (UU), Hanna Wacklin-Knecht (LU/ESS), Tom Arnold (ESS) act as co-ordinating group.Time plan: Month (M)12: Science case complete; M16: Benchmarking finalised; M15: New components identified; M20: New components with manufacture feasibility; M24: Scale-up concept; M12: Draft proposal; M24: Proposal submitted (pending ESS deadlines).

The methods involve ray tracing modelling and experimental studies.The planned activity is divided in 5 tasks: 1. Science case; 2. Benchmarking; 3. New components; 4. Scale-up concepts; 5. Instrument proposal.

This involves close collaboration with the community.SAGA will guarantee a viable path towards a competitive proposal for an ESS instrument by providing a convincing science case, unsurpassed technical design, technical development, and an active national and international user network.