Development of CoRDIA: An Imaging Detector for Next-Generation Synchrotron Rings and Free Electron Lasers

Abstract CoRDIA (Continuous Readout Digitizing Imager Array) is a hybrid pixel detector development targeted to 4 th generation synchrotron sources and (continuous) high-rate Free Electron Lasers. Serving the latter it builds upon the concept of the AGIPD detector, employing a charge sensitive preamplifier with adaptive gain switching. The further signal path comprises of a Correlated Double Sampling stage and an 11 bit Analogue to Digital Converter (ADC), serving a sub array of 16 pixels. 128 ADCs connect to a multi-gigabit serial link to drive the images off chip. For this part CoRDIA adopts the ” GWT-CC ” implementation on the Timepix4 chip by Nikhef. A chip with 256 × 192 pixels will implement 24 of these blocks. Since the links conform to industry standards (IEEE 802.3ae), the subsequent data acquisition can be based on commercial components. Performance targets are a continuous frame rate of ≈ 150 kHz, single-photon sensitivity at <12 keV, and a dynamic range of a few thousand photons (@ 12 keV) with a silicon sensor. The energy range could be extended using active sensors or sensors from ” high-Z ” materials towards lower and higher photon energies.