Speaker
Description
Future neutrino and rare event searches require exceptionally large detectors with high spatial-granularity readout technologies. Efforts in scalable readout systems for noble liquid detectors will be discussed, starting with LArPix. This custom integrated circuit (64-channel SOC, integrating CSA, 10-bit SAR ADC, now in 130nm CMOS) and associated scalable readout system architecture was developed to provide native 3D imaging of ionization in kiloton-scale liquid argon time-projection chambers, achieving targets for low-noise (<1000 e- ENC), low-power (<200 $\mu$W/channel), and cryogenic (down to 77 K) operation. This talk will focus on lessons learned from the production and operation of O(10$^6$) LArPix channels in prototype LArTPCs (i.e. 2x2 Demonstrator, ND-LAr Full-scale Demonstrator), as well as recent developments using LArPix as a platform for generic noble liquid detector R&D. Variations of the system design, including modification for high-channel-count photon detectors and novel techniques for adaptive data routing, will also be discussed.