Description
Defense and presentation of posters before a panel of judges
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María José Córdova Salvo (UNAB)
Image reconstruction in positron emission tomography (PET) remains a significant technical challenge. In this work, we report the characterization of front-end electronics (FEE) based on Anger logic designed to read out an array of 21 Multi-Pixel Photon Counters (MPPCs). This photosensor array is optically coupled to an array of wavelength-shifting (WLS) fibers interfaced with a LYSO crystal...
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Mauricio Alexander Santibañez Alvarez (UNAB)
We present the characterization of two planes composed of 8 bars (125 × 4 × 0.7 cm³) made by plastic scintillator coupled to two WLS fibers and read out by four MPPCs at the ends. We performed an event-by-event analysis of the raw signals and implemented a coincidence logic to obtain the SPE calibration using cosmic-ray runs. A monitoring system was established after data quality control.
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Alexis Fabián Espinoza Quinteros (UTALCA)
The ATLAS Inner Tracker (ITk) upgrade requires reliable and scalable control systems for power distribution and detector monitoring. The Monitoring of Pixel System (MOPS) is a radiation-hardened ASIC for monitoring front-end electronics used in the Inner Tracker. The MOPS-Hub is a dedicated aggregation and control platform that interfaces multiple MOPS devices, concentrating power monitoring...
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Francisca Nazarena Donoso Bastias (USM)
This work presents the development of a student oriented control system for the MOPS-Hub crate for the ITk-ATLAS detector, based on an Arduino microcontroller and an FPGA platform. The project includes fixes and improvements to the existing Arduino firmware, contributing to a better understanding of the system. Additionally, a low-level control and monitoring system for a single Card Interface...
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Roberto Renato Felipe Gómez Ramírez
We implemented a CORSIKA8 simulation for proton air showers (1–100 TeV, 45°), optimizing large-scale simulations on the SAPHIR cluster via Slurm Job Arrays and thinning. By analyzing Lateral Distribution Functions (LDF) and Energy Spectra, we verified the framework's physical consistency against standard literature. Results confirm that CORSIKA8 reproduces the expected morphological separation...
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José Luis Soto Pezoa (UNAB)
This study characterizes a particle detector prototype based on 7mm width plastic scintillator bars coupled to wavelength-shifting (WLS) fibers and SiPM readout. To validate the detector response, we measured the energy deposition of 150 GeV/c electrons, muons-, and negative pions from the H4 beamline at the CERN SPS. The experimental results are benchmarked against analytical models...
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Fernanda Mella Alvarez (UC)
In long-baseline neutrino experiments, the systematic uncertainty associated with neutrino flux remains one of the primary challenges for precision measurements. Inverse Muon Decay (IMD) has a unique characteristic since it’s a purely leptonic process and its cross-sections can be theoretically calculated with precision. We can study the IMD reactions at SND@HL-LHC and FASER by simulating...
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Benjamin Ignacio Moncada Aguayo (UNAB), Isidora Isabel Carreño Salinas (UNAB)
This work presents a study of neutral meson production in diffractive collisions using the Pythia8 event generator. Cross sections and momentum transfer distributions are analyzed for double diffractive processes in a fixed-target scheme at beam energies of 10, 39.1, and 40 GeV. The analysis compares the SoftQCD and LowEnergyQCD physics scenarios, assessing their performance in describing...
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