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The ionoluminescence of strontium titanate (SrTiO3) under the intense electronic excitation produced by 3 MeV H, 19 MeV Si, and 19 MeV Cl ions was investigated for temperatures between 30 and 100 K. In addition to previously reported emission bands centered at 2.0 eV, 2.5 eV, and 2.8 eV, an asymmetric, narrow emission band centered at 3.15 eV was observed for the first time under ion irradiation. The 3.15 eV band appeared only under heavy ion irradiation (19 MeV Si and Cl) and at temperatures below ~70 K. The absence of the 3.15 eV emission under proton irradiation indicates that impurities and the pre-irradiation defect population likely play little or no role in the emission process, while electronic excitation density does. At the same time, the absence of fluence-dependent growth in the yield suggests that irradiation-induced defects are also unlikely to be the main cause of the emission. Upon comparing the proton induced ionoluminescence, heavy ion induced ionoluminescence, and available literature on low temperature photoluminescence of strontium titanate, a self-consistent interpretation emerges, where the 3.15 eV emission is associated with the recombination of large polarons. 

ProtoDUNE Single-Phase (ProtoDUNE-SP) is a 770-ton liquid argon time projection chamber that operated in a hadron test beam at the CERN Neutrino Platform in 2018. We present a measurement of the total inelastic cross section of charged kaons on argon as a function of kaon energy using 6 and $7\mathrm{GeV}/c$beam momentum settings. The flux-weighted average of the extracted inelastic cross section at each beam momentum setting was measured to be $380\pm 26\mathrm{mbarns}$for the $6\mathrm{GeV}/c$setting and $379\pm 35\mathrm{mbarns}$for the $7\mathrm{GeV}/c$setting. Published by the American Physical Society2024 

The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements and provide comparisons to detector simulations.