Speaker
Description
Q-Pix is an innovative approach for measuring ionization and, potentially, scintillation signals in large liquid argon Time Projection Chambers (LArTPCs). At its core is a self-triggering "Charge Integrate/Reset" circuit, where a charge-sensitive amplifier continuously integrates incoming current on a feedback capacitor. When the signal reaches a preset threshold, a ‘reset’ transition is initiated. The cycle then recommences, allowing continuous capture of detailed time and charge information. The original current can be reconstructed from the time between resets. Compared to traditional wire-based readout systems, a pixelated readout system offers the advantage of unambiguous 3D imaging in LArTPCs, reducing ambiguities in event reconstruction. This talk will present the latest status and R&D results from Q-Pix, including simulations, prototype detectors, ASIC development and testing, and lab infrastructure.
