Diamond Annual Review 2023/24

25 D I A M O N D L I G H T S O U R C E A N N U A L R E V I E W 2 0 2 3 / 2 4 optics (f-switch) to provide micro focusing capabilities in EH1 has been approved, while a set of Be lenses for the system is already available. The aim is to install the new optical system during the Diamond-II dark period. The user programme of the beamline continues to focus on a wide range of subjects, including electrochemistry (electrodeposition, corrosion, etc.), peroskvite solar cells, 2D materials and biomimetic membranes amongst many others. Beamline B07 (VerSoX) Both branches of B07 have been in full operation, providing beamtime for 38 and 33 standard user experiments on Branch B and C, respectively. Concurrently, commissioning was carried out to integrate a silicon drift partial fluorescence yield detector and automated sample transfer in the UHV endstation (ES1) of Branch B whilst a new channel-cut crystal monochromator (CCM) was installed on Branch C. The latter is important for X-ray Photoelectron Spectroscopy (XPS) at high photon energies, as it provides significantly higher energy resolution than the standard Plane Grating Monochromator (PGM), but only offers three fixed energies, 2000, 2250, and 2500 eV. It is available for user operation. The I09 team. The critical role that surfaces and interfaces play in broader research areas such as battery technology, photovoltaic structures, the discovery of novel quantummaterials and catalytic/electrochemical systems under operando conditions are key drivers for these developments.