The Dedicated Accelerator R&D Facility “SINBAD” at DESY

We present an overview of the dedicated accelerator R&D facility “SINBAD”, currently under construction at DESY. It will host multiple independent experiments related to the generation and acceleration of ultra-short electron bunches and to the development of various advanced acceleration schemes. SINBAD will initially host two experiments: AXSIS and ARES. The AXSIS collaboration aims to generate fs to sub-fs electron bunches at 15-20 MeV using THz-driven dielectric structures, with the objective to generate ultrafast X-ray pulses by inverse Compton scattering. The first stage of the ARES experiment is to set up a 100 MeV S-band electron linac to produce ultra-short electron bunches with excellent beam arrival time stability. The RF-gun is currently being installed and will be commissioned in spring 2018, followed by the installation and commissioning of the accelerating structures. Thereafter in 2019, the electron bunches will be ideally suited for various experiments on advanced accelerator and diagnostics concepts (e.g. DLA experiments in the context of the ACHIP collaboration). In the long term, external injection into a laser driven plasma acceleration stage is also targeted