HiRES, short for High Repetition-rate Electron Scattering apparatus, is a facility at Lawrence Berkeley National laboratory (LBNL).  Built upon the LBNL Very High Frequency (VHF) gun, the APEX Gun with the same technology utilized for LCLS, HiRES serves as a testbed for advanced accelerator technology in the framework of high average current/high brightness particle accelerators with unique MHz repetition rate capabilities. By employing ultrafast electron diffraction (UED) experiments, HiRES enables researchers to track the dynamic behavior of atoms and molecules with unparalleled precision and temporal resolution.

Our facility is well poised to conduct experiments to develop and test low-level RF controls, precise timing synchronization, high dynamic range beam diagnostics, ultrafast electron beam physics and technology, and machine learning-based adaptive feedback controls for particle accelerators.

In the realm of UED experiments, HiRES beamline offers opportunities to gain new insight into material science, such as improving the efficiency and output of chemical reactions; pinpoint defects and their effects; track electronic and superconducting properties in exotic materials; and detail chemical reactions in gas etc.