technology and the development of radiation- hard nano-focusing optics.

ID16B welcomed its first post-EBS users in remote mode in early September 2020. The improvements brought to the beamline by the EBS include, among others, a monochromatic (pink) beam flux increased by 30x (10x), opening new possibilities for in-situ and multi-modal characterisation. In 2021, several technical improvements will be deployed on ID16B to make it better adapted to the EBS. A new, three-element X-ray fluorescence (XRF) detector and faster readout electronics will enable XRF acquisitions in a few milliseconds, maintaining low detection limits. The increased monochromatic beam will enable faster X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) acquisitions. A faster XRD camera will be implemented to equal XRF and XRD acquisition times. A nitrogen cryostat will complement the helium one already available, in order to perform low-temperature characterisation and to avoid any potential radiation damage on the samples.

The refurbishment at ID21 is ongoing. Regarding software, the beamline now operates with the new BLISS control system and offers a completely new, web-based graphical user interface, dedicated to 2D µ-XRF maps, µ-X-ray absorption near-edge structure (XANES) spectroscopy and hyperspectral mapping. Users can be fully autonomous in less than one hour. Regarding hardware, the commissioning of the new DCM continues, revealing impressive beam stability over the XAS energy range, but also when switching from one edge to another. The design of the future X-ray nanoscope is also progressing well. Complementing and outperforming the present X-ray microscope, which will be preserved for macro- and micro- analyses, this new, state-of-the-art instrument will offer higher lateral resolution and higher flux from 2 to 11 keV as well as better XRF detection capacities, higher speed and an improved cryo-stage. The beamline will be closed until April 2021 for preliminary infrastructure work in the experimental hutch. Its operation will resume with the present scanning X-ray microscope, which will be later complemented by the new nanoscope.

T. SCHÜLLI, , M. COTTE, P. CLOETENS, M. BURGHAMMER and J. SEGURA