2024/01/31 by Tom Shutt, Shutt, Tom, Bahrudin Trbalic +23 · 2 citations
Engineering · Physics and Astronomy · #CCD and CMOS Imaging Sensors #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Particle Detector Development and Performance
paper · pdf · doi:10.48550/arxiv.2402.00902
openalex publication_date 2024/01/31 · openalex created_date 2024/02/06 · openalex updated_date 2026/07/28
We report on the development of a novel pixel charge readout system, Grid Activated Multi-scale pixel readout (GAMPix), which is under development for use in the GammaTPC gamma ray instrument concept. GammaTPC is being developed to optimize the use of liquid argon time projection chamber technology for gamma ray astrophysics, for which a fine grained low power charge readout is essential. GAMPix uses a new architecture with coarse and fine scale instrumented electrodes to solve the twin problems of loss of measured charge after diffusion, and high readout power. Fundamentally, it enables low noise and ultra low power charge readout at the spatial scale limited by diffusion in a time projection chamber, and has other possibly applications, including future DUNE modules.