May 29, 2018 to June 3, 2018
Hyatt Regency Indian Wells Conference Center
US/Pacific timezone

Demonstration of 3D Micro-Power Readout for Liquid Argon Time Projection Chambers

Jun 1, 2018, 6:30 PM
East Foyer (Hyatt Regency Indian Wells Conference Center)

East Foyer

Hyatt Regency Indian Wells Conference Center

44600 Indian Wells Lane, Indian Wells, CA 92210, USA
Board: 4
Poster NMNM Poster Session


Daniel Dwyer


We report the demonstration of a micro-power sensor designed for three-dimensional ionization charge detection and digital readout of liquid argon time projection chambers (LArTPCs). 3D readout is achieved using a custom-designed 32-channel system-on-a-chip ASIC (LArPix-v1), manufactured in 180 nm bulk CMOS, to uniquely instrument each pad in a charge-sensitive pad sensor array. Using a prototype sensor with 3 mm spacing between pads, we demonstrate low-noise ($<500\ e^-$ equivalent) low-power ($<100\ \mu$W/ch) ionization signal detection and readout of cosmic ray interactions in two LArTPCs with drift distances of 10 to 60 cm. This demonstration of 3D micro-power readout overcomes a critical technical obstacle for operation of LArTPCs in high-occupancy environments, such as the near detector site of the Deep Underground Neutrino Experiment (DUNE).
E-mail [email protected]
Funding source DOE-OHEP contract number DE-AC02-05CH11231

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