Upgrade of macromolecular crystallography beamline BL17U1 at SSRF

Beamline BL17U1 at Shanghai Synchrotron Radiation Facility is an energy-tunable macromolecular crystallography beamline that has been in user operation since 2009. Growing demand from the user community for a small beam and related experimental methods have motivated upgrades of the devices in the endstation. Minibeam modes have already been developed for operation. A self-integrated diffractometer reduces the sphere of confusion of the rotatory axis to 1 µm. The new diffractometer is equipped with an upgraded on-axis viewing system that can improve the resolving power. Additionally, the area detector was also upgraded to the newest generation of detectors, the EIGER X 16M, which can collect data at 133 Hz. After these upgrades, the endstation became virtually new. This paper covers the upgrade of the endstation devices and gives the first data collection results.