Bunch-resolved diagnostics for a future electron-storage ring

The upgrade of the BESSY II light source in Berlin towards a variable pulse-length storage-ring will lead to complex bunch-filling pattern. This may involve co-existing electron bunches with significant variations their properties. Among many other conditions, it calls for bunch-resolved diagnostics sub-ps time resolution and micrometer spatial resolution. Currently, we are finishing constructing diagnostic platform connected new dipole beamlines visible as well THz measurements. mid-term aim is 24/7 use optical beam development advanced methods specific purposes. Preliminary interferometric data transverse profiles presented discussed. main topic this paper, however, recent streak-camera results along concepts achieve high signal-to-noise ratio, 2D at efficiency.