Tender: Supply of Two I17 White Beam Slit Systems for Diamond‑II Beamline at Diamond Light Source (Harwell, Oxfordshire)

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Diamond Light Source is seeking a supplier for the design, supply of materials, manufacture, assembly, test and delivery of two White Beam Slit systems (S1 and S2) for the Diamond‑II I17 flagship soft x-ray beamline at the Harwell Science and Innovation Campus in Oxfordshire. Each White Beam Slit system will include slit blades and actuators, a cooling system, vacuum vessel, support and manual positioning system, and will be used to define beam size and divergence, control heat load on downstream optics, and provide diagnostic information. The I17 beamline will operate in the 250 eV to 3.5 keV energy range and include optics to focus the beam at exit slits that act as a secondary source for sample illumination; the slits must also define the beam impinging on mirror M1, define accepted beam dimensions after M1 deflection, and allow tuning between flux and transverse coherence.