J. Fraga

ORCID: 0009-0000-9507-849X
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About
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Research Areas
  • Particle Detector Development and Performance
  • Particle physics theoretical and experimental studies
  • Radiation Detection and Scintillator Technologies
  • High-Energy Particle Collisions Research
  • Graphite, nuclear technology, radiation studies
  • Radiation Effects in Electronics
  • Rheumatoid Arthritis Research and Therapies
  • Graphene research and applications
  • Autoimmune and Inflammatory Disorders Research
  • Hip disorders and treatments
  • Computational Physics and Python Applications
  • CCD and CMOS Imaging Sensors
  • Muon and positron interactions and applications
  • Fiber-reinforced polymer composites
  • Particle Accelerators and Free-Electron Lasers
  • Advanced Battery Technologies Research

Universidad de Guanajuato
2024-2025

Bulgarian Academy of Sciences
2023-2024

Universidade Federal de Sergipe
2022

Universidad de Los Andes
2020

The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in hostile environment CMS underground cavern on Large Hadron Collider where pp luminosities up to $2\times 10^{34}$ $\text{cm}^{-2}\text{s}^{-1}$ routinely achieved. RPC performance is constantly monitored and detector regularly maintained ensure stable operation. main monitorable characteristics dark current, efficiency for...

10.1016/j.nima.2023.168449 article EN cc-by-nc Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2023-06-16

In the High Luminosity Large Hadron Collider (HL-LHC) program, during next years, instantaneous luminosity will increase up to 5 × 1034 cm−2 s−1 which means a factor five higher than nominal LHC luminosity. that period, present CMS Resistive Plate Chambers (RPC) system be subjected background rates those for detectors have been designed, could affect detector properties and induce aging effects. To study whether RPC can sustain hard conditions HL-LHC running dedicated longevity test is...

10.1088/1748-0221/15/11/c11002 article EN Journal of Instrumentation 2020-11-04

With the HL-LHC upgrade of LHC machine, an increase instantaneous luminosity by a factor five is expected and current detection systems need to be validated for such working conditions ensure stable data taking. At CERN Gamma Irradiation Facility (GIF++) many muon detectors undergo studies, but high gamma background can pose challenge trigger system which exposed fake hits from background. A tracking using RPCs implemented clean hits, taking profit efficiency these chambers. This work will...

10.48550/arxiv.2211.16591 preprint EN cc-by arXiv (Cornell University) 2022-01-01
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