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The Standard Model (SM) of physics has proven successful over the past decades, despite several measurements that indicate its incomplete description of nature. The search for New Physics (NP) continues at higher energies with larger detectors. One such future detector is the Deep Underground Neutrino Experiment (DUNE). DUNE is a combination of two detectors, a near detector (ND) and a far detector (FD), which will be used together to search for Charge-Parity Violations (CPV) in the lepton sector. The DUNE FD will be a combination of four large (≈ 10 kT) Liquid Argon Time Projection Chambers (LArTPC). Each 10-kT FD requires high precision in both time (≤ 1 ) and spatial resolution (≈ 1 mm) for vertex reconstruction and particle identification (PID) of neutrino events.This dissertation discusses the progress and characterization of a novel implementation of a new pixelated LArTPC readout technology that can be used in an FD. This novel readout is based on a pixel-level charge-integrate-reset circuit: Q-Pix. We present the basic pixel-level readout circuit and the implications of such an implementation when used in kiloton LArTPCs. We also show results from the first prototype implementation based on the Q-Pix readout, which was designed using only off-the-shelf electronics. One problem with any pixelated readout is the ability to handle a large number of unique data channels, which in the case of the DUNE-FD is ≈ 108 . To address the scaling problem, we have developed and tested a modular digital back-end prototype as a proof of concept. This prototype is based on the first Q-Pix digital ASIC design also presented in this thesis. We discuss the back-end system requirements for a Q-Pix based readout technology to provide neutrino oscillation measurements up to 10 GeV, and present the first demonstration of local oscillator calibrations (∼ 0.1 ppm). Simulations were performed based on radiogenic backgrounds and high-energy neutrino beam line events, providing first constraints on digital back-end requirements in both the quiescent and active states. Finally, based on these results from the simulations and prototypes presented here, we discuss the digital back-end readout of a fully realized Q-Pix implementation within a 10 kT DUNE-FD module.

The biography is informative and interesting in revealing his early life, including his schooling in Toowong, Brisbane, where Farley attended the 'muscular Calvinist' Brisbane Boys' College, notable for its insistence on straw boaters as head gear in the Brisbane sun. The work of Rick Farley in bringing Aboriginal land council leaders and pastoralists together to fashion joint approaches to common issues was innovative and led to lasting relationships; mutually valued by the protagonists for decades to come. Rick Farley found himself with the challenging role of containing the visceral reactions of the pastoralists (especially in Western Australia), and seeking to negotiate a lasting solution that would ensure pastoral lease security and recognise Aboriginal title rights.

The Optically Segmented Single Volume Scatter Camera (OS-SVSC) aims to image neutron sources for nuclear non-proliferation applications using the kinematic reconstruction of elastic double-scatter events. We report on the design, construction, and calibration of one module of a new prototype. The module includes 16 EJ-204 organic plastic scintillating bars individually wrapped in Teflon tape, each measuring 0.5 cm\\(\\times\\)0.5 cm\\(\\times\\)20 cm. The scintillator array is coupled to two custom Silicon Photomultiplier (SiPM) boards consisting of a 2\\(\\times\\)8 array of SensL J-Series-60035 Silicon Photomultipliers, which are read out by a custom 16 channel DRS-4 based digitizer board. The electrical crosstalk between SiPMs within the electronics chain is measured as 0.76% \\(\\pm\\) 0.11% among all 16 channels. We report the detector response of one module including interaction position, time, and energy, using two different optical coupling materials: EJ-560 silicone rubber optical coupling pads and EJ-550 optical coupling grease. We present results in terms of the overall mean and standard deviation of the z-position reconstruction and interaction time resolutions for all 16 bars in the module. We observed the z-position resolution for gamma interactions in the 0.3 MeVee to 0.4 MeVee range to be 2.24 cm\\(\\pm\\)1.10 cm and 1.45 cm\\(\\pm\\)0.19 cm for silicone optical coupling pad and optical grease, respectively. The observed interaction time resolution is 265 ps\\(\\pm\\)29 ps and 235 ps\\(\\pm\\)10 ps for silicone optical coupling pad and optical grease, respectively.

Tarlach reviews PLANCK: DRIVEN BY VISION, BROKEN BY WAR by Brandon R Brown.

Using Commercial Off-The-Shelf (COTS) Operational Amplifiers (OpAmps) and Complementary Metal-Oxide Semiconductor (CMOS) transistors, we present a demonstration of the Q-Pix front-end architecture, a novel readout solution for kiloton-scale Liquid Argon Time Projection Chamber (LArTPC) detectors. The Q-Pix scheme employs a Charge-Integrate/Reset process based on the Least Action principle, enabling pixel-scale self-triggering charge collection and processing, minimizing energy consumption, and maximizing data compression. We examine the architecture's sensitivity, linearity, noise, and other features at the circuit board level and draw comparisons to SPICE simulations. Furthermore, we highlight the resemblance between the Q-Pix front-end and Sigma-Delta modulator, emphasizing that digital data processing techniques for Sigma-Delta can be directly applied to Q-Pix, resulting in enhanced signal-to-noise performance. These insights will inform the development of Q-Pix front-end designs in integrated circuits (IC) and guide data collection and processing for future large-scale LArTPC detectors in neutrino physics and other high-energy physics experiments.