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Dr Hiroyuki Sako (Japan Atomic Energy Agency)Applied research and new ideasTalk
J-PARC E88/SA$\Phi$RE experiment aims at elucidating the chiral-symmetry restoration of the $\phi$ meson inside the nuclei by measuring its $K^{+}K^{-}$ decay in proton-nucleus collisions at 30 GeV/c. We have developed an MRPC with high-rate capability by warming the glass stack, aiming at precise time-of-flight measurements for $K^{\pm}$ identification. In E88/SA$\Phi$RE, we measure $\phi...
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Davide Piccolo (INFN e Laboratori Nazionali di Frascati (IT))Physics and SimulationTalk
Within the framework of the TANGO_RD project, a novel gas detector architecture known as Resistive Cylindrical Chambers (RCC) is under active investigation. To effectively guide the hardware R&D, we are developing a dedicated, standalone simulation program. Designed to natively support both traditional planar geometries and the new cylindrical ones, this custom C++ framework relies on...
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Tahany Elhussieny Abdelhameid (ENHEP Egyptian Network of High Energy Physics (EG))Physics and SimulationPoster
Muon detection is an important aspect of modern high energy physics experiments due to the strong penetration capability of muons compared with other secondary particles. In this work, a simulation study was carried out using the FLUKA Monte Carlo package to investigate the production of muons generated by the interaction of electron beams with different target materials and target...
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Kevin Mota Amarilo (Universidade do Estado do Rio de Janeiro (BR))Applied research and new ideasPoster
We present a modular data acquisition (DAQ) system developed for the automated characterization of particle detectors at the Nuclear and Particle Physics Laboratory (LFNP). The system integrates control of CAEN high-voltage power supplies with a finite-state machine (FSM) engine to orchestrate scans across multiple detector channels.
The architecture comprises three services: a web-based...
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CMS CollaborationAlternative Mixtures and LongevityPoster
The CMS Improved Resistive Plate Chambers (iRPCs) are a key component of the muon detection system for operation during the High-Luminosity LHC era. Their long-term performance depends on the stability of the high pressure laminate (HPL) electrodes. Based on previous studies of iRPC aging performed at the CERN Gamma Irradiation Facility (GIF++), this work investigates the microscopic and...
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Tiago Fiorini Da Silva (Universidade de Sao Paulo (BR))Applied research and new ideasTalk
Future high-energy physics experiments demand micropattern gaseous detectors (MPGDs) with enhanced radiation tolerance, long-term stability and reliable operation under increasingly harsh conditions. Meeting these challenges requires a comprehensive understanding of the interplay between detector fabrication, materials properties, gas chemistry and aging mechanisms. To address this need, the...
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Dongdong Hu (University of Science and Technology of China)HEP and Beyond HEP Applications TechniquesPoster
We present an online monitoring and track reconstruction system developed for a multi-detector MRPC (Multi-gap Resistive Plate Chamber) cosmic-ray test platform. Built upon CERN ROOT and deployed in a Linux environment, the system enables simultaneous performance evaluation of multiple MRPC detectors. It performs real-time track fitting using hit information, allowing users to add or remove...
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CMS CollaborationHEP performancePoster
The muon system of the Compact Muon Solenoid (CMS) comprises several gaseous detectors, including Resistive Plate Chambers (RPCs). Each data-taking year, a high-voltage (HV) scan is performed to ensure proper chamber operation and determine the optimal operating voltage of the RPCs. A new algorithm is proposed for determining the HV channel working points by scanning a range of voltages and...
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CMS CollaborationHEP performancePoster
This poster presents the efforts to boost the performance and the reliability of the Resistive Plate Chambers (RPC) of the muon system of the Compact Muon Solenoid (CMS) experiment. The focus is on both the maintenance of the existing RPC chambers and the installation of the improved RPC detectors (iRPC) for the Phase-II upgrade. The RPC system consolidation is based on the standard...
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CMS CollaborationAlternative Mixtures and LongevityPoster
The aging process is one of the main concerns when operating Resistive Plate Chambers (RPCs) in high-luminosity, long-term detector experiments such as the Compact Muon Solenoid (CMS). Since 2010, the CMS experiment has collected about 500 fb⁻¹ of pp collision data, while the expectation for the HL-LHC is to collect more than 3000 fb⁻¹. To ensure reliable operation throughout this period, the...
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Prof. Yi Yuan (IHEP, Beijing, China)HEP performanceTalk
The COMET experiment at J-PARC searches for the charged-lepton-flavour-violating process of coherent muon-to-electron conversion in a muonic atom, $\mu^- N \to e^- N$, with a target single-event sensitivity of $\mathcal{O}(10^{-15})$ during Phase I, which is scheduled to begin in 2028. The experiment employs an 8 GeV bunched slow-extraction proton beam from the J-PARC Main Ring, which is...
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Willian Da Silva (Universidade de Sao Paulo (BR))Alternative Mixtures and LongevityPoster
Resistive Plate Chambers are one of the most used types of particle detectors in High Energy Physics since the 1980s. They offer advantages such as good time resolution and high-rate capability. They can be assembled using simple and cost-effective materials and gas mixtures, such as tetrafluoroethane. However, impurities in the gas can distort the signals or even damage the detector...
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CMS CollaborationHEP and Beyond HEP Applications TechniquesTalk
Various Beyond-the-Standard-Model theories predict the existence of Heavy Stable Charged Particles (HSCPs), making their search one of the key objectives of the CMS Phase-II upgrade for the High-Luminosity LHC (HL-LHC). Owing to their large masses, HSCP candidates are expected to traverse the detector at velocities significantly lower than those of relativistic muons. Therefore, their flight...
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Giulio Aielli (INFN e Universita Roma Tor Vergata (IT))HEP and Beyond HEP Applications TechniquesTalk
The RPC R&D effort of the last decades is culminating in the HL-LHC upgrades of the ATLAS and CMS systems and in the installation of pilot detectors for large Long-Lived Particle (LLP) experiments. In parallel, the need to drastically reduce the use of fluorinated gases has driven RPC research toward previously unexplored operating conditions, leading to promising results combining improved...
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Michael Tytgat (Vrije Universiteit Brussel (BE))Applied research and new ideasTalk
Muon imaging (muography) exploits the natural flux of cosmic-ray muons to probe the internal structure of large or dense objects and has found an increasing amount of applications in areas including geoscience, nuclear safety, homeland security, civil engineering, mining industry and more. To enable muography measurements in logistically challenging environments, we are developing a compact,...
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CMS CollaborationApplied research and new ideasPoster
Gas mixtures for particle detectors are conventionally prepared using mass flow controllers, which can be costly. This work presents the development of a low-cost volume-based gas mixing system that uses peristaltic pumps to produce gas mixtures through volumetric dosing. The effectiveness of the system was evaluated using gas chromatography by comparing the composition of the produced mixture...
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CMS CollaborationApplied research and new ideasPoster
A dedicated electronic circuit breaker has been developed to provide autonomous thermal protection for the front-end electronics of the CMS Improved Resistive Plate Chamber (iRPC) system at the High-Luminosity LHC. The board continuously monitors the temperature near the front-end ASICs using a PT100 sensor and disconnects the 4 V power supply whenever a predefined safety threshold is...
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CMS CollaborationHEP performanceTalk
The iRPC (improved Resistive Plate Chamber) is a newly introduced detector in the CMS Phase-II Upgrade, designed to enhance muon detection efficiency in the high-luminosity LHC environment. In order to study the performance of iRPC and R&D on the key technology of Backend Electronics, a prototype back-end electronics (BE) system based on the MicroTCA (µTCA) architecture has been developed and...
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Luis Miguel Domingues Mendes (CBPF)Applied research and new ideasPoster
Resistive Plate Chambers require a continuous supply of suitable operating gas to ensure stable and reliable detector performance. However, the use and disposal of RPC gases represent an important environmental and operational challenge, particularly in laboratories and experimental systems where long-term detector operation is required. In this context, the development of gas regeneration and...
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Katherine Maslova (UERJ/CERN)Applied research and new ideasTalk
GIF++ (Gamma Irradiation Facility) is a CERN multiuser facility dedicated to the characterization and qualification of particle detectors under radiation conditions as expected at the LHC (Large Hadron Collider) and the future HL-LHC. It combines a high-activity 137Cs gamma source, adjustable attenuation filters, and a high-energy muon beam, providing a unique environment for detector...
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Natsuki TomidaApplied research and new ideasTalk
We are developing TOF and TOF-tracker MRPCs for the J-PARC MARQ experiment and muography applications.
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The TOF MRPC will be used as a particle-identification (PID) detector in the MARQ spectrometer at the high-momentum beamline of J-PARC.
In contrast, the TOF-tracker MRPC is being developed as a muon detector providing both position and timing information.
These MRPCs share a common... -
Gabriel Campanelli (UERJ)Applied research and new ideasPoster
Resistive Plate Chambers (RPCs) are gas-based particle detectors widely used in High Energy Physics experiments such as CMS and ATLAS, as well as in several other particle physics experiments since the 1980s. Their main advantages are the relatively low cost of covering large areas, compared with non-gas-based detectors, and the very good timing resolution compared with other gas-based...
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Victor Olenin Ramirez Beltran (Universidad Iberoamericana)Physics and SimulationTalk
Resistive Plate Chambers (RPCs) are commonly simulated using a multiscale approach in which Geant4 describes particle transport and energy deposition, while Garfield++ models gas ionization and avalanche development. In most existing workflows, these two frameworks are coupled sequentially: Geant4 outputs are exported and subsequently processed by Garfield++, preventing microscopic ava- lanche...
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RPC EcoGas@GIF++ CollaborationAlternative Mixtures and LongevityTalk
Gaseous detectors are widely employed in high-energy physics experiments, where their operation often relies on fluorinated gases with a high Global Warming Potential. In light of increasing environmental awareness and tightening regulations, the identification of sustainable and low-impact gas mixtures has become a priority for the community.
Resistive Plate Chambers (RPCs) operated in...
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Mr Yingjie Zhou (University of Science and Technology of China)Physics and SimulationPoster
We present a simulation framework for avalanche development, signal formation, and timing studies in a multi-stack resistive plate chamber (MRPC). The detector model has four stacks of six gas gaps and five strip-readout planes.
Cosmic-ray muon tracks generated with CRY are supplied to TrackHeed to simulate primary ionization in the detector gas. Early avalanches are treated with...
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CMS CollaborationPhysics and SimulationPoster
The CMS experiment is upgrading the muon system for High-Luminosity LHC (HL-LHC). Improved Resistive Plate Chambers (iRPCs) will be installed in the endcap stations RE3 and RE4. Compared to conventional RPCs, iRPC has better timing performance because it uses dual TDC channels with bunch-crossing, sub-bunch-crossing, and fine-time information, giving much finer time resolution than the 25 ns...
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Rinaldo Santonico (INFN e Universita Roma Tor Vergata (IT))HEP and Beyond HEP Applications TechniquesTalk
The experiment Argo-(Tibet 4300 m asl) has demonstrated the great RPC potential for gamma ray astrophysics with ground-based detectors. The Argo most relevant point was its very low energy threshold, approaching 100 GeV, which allowed to detect soft Extensive Air Showers (EAS) down to unprecedented energies. This feature offers a unique opportunity for the detection of Gamma Ray Bursts (GRB)...
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Mrs Gabriela Tamberi (Swagelok Brasil)Applied research and new ideasTalk
Resistive Plate Chambers (RPCs) are highly sensitive to the stability, purity, and precise control of their operating gas mixtures. As a result, the performance, reliability, and reproducibility of experimental results are intrinsically linked to the design and operation of the gas delivery system.
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This seminar examines the critical role of fluid system engineering in RPC applications,... -
Mr Xandre Álvarez González (USC)Physics and SimulationTalk
Resistive plates in gaseous detectors are commonly modelled as parallel RC circuits, possibly with a voltage-dependent resistance.
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This approach has enabled substantial progress in the description of resistive-protection techniques, including induced-signal formation, rate capability, dynamic field fluctuations and charging-up times. However, real materials exhibit ideal RC-like behaviour... -
CMS CollaborationProduction and QATalk
The CMS muon system is being upgraded in preparation for the High-Luminosity LHC (HL-LHC), where significantly higher particle rates and radiation levels are expected. As part of this upgrade, 72 Improved Resistive Plate Chambers (iRPCs) in total will be installed in the RE3/1 and RE4/1 stations of the endcap muon system to maintain efficient muon triggering and reconstruction in the forward...
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CMS CollaborationPhysics and SimulationTalk
The Compact Muon Solenoid (CMS) Resistive Plate Chamber (RPC) system has operated successfully during the LHC Run 1, Run 2, and Run 3 data-taking periods. During the High-Luminosity Large Hadron Collider (HL-LHC) phase, the instantaneous luminosity is expected to increase by up to a factor of five with respect to the nominal LHC conditions, leading to higher background rates and harsher...
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CMS CollaborationHEP performancePoster
The Resistive Plate Chamber (RPC) system of the CMS experiment has been operating successfully since the beginning of LHC data taking. The prolonged exposure to radiation backgrounds throughout Run 1, Run 2, and Run 3 provides a unique opportunity to assess the long-term behavior of the CMS RPC detectors and to evaluate their expected performance throughout the High-Luminosity LHC (HL-LHC)...
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CMS CollaborationAlternative Mixtures and LongevityTalk
Resistive Plate Chamber (RPC) detectors in the Compact Muon Solenoid (CMS) experiment operate with a gas mixture comprised of 95.2% of C2H2F4, that provides a high number of ion-electron pairs, 4.5% of iC4H10, that ensures the suppression of photon-feedback effects and 0.3% of SF6, used as an electron quencher to further operate the detector in streamer-free mode. C2H2F4 is known to be a...
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Maxime Gouzevitch (Centre National de la Recherche Scientifique (FR))Applied research and new ideasPoster
The COMET experiment at J-PARC searches for the charged-lepton-flavour-
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violating process of coherent muon-to-electron conversion in a muonic atom, $\mu^- N \to e^- N$, with a target single-event sensitivity of $\mathcal{O}(10^{-15})$ during Phase I, expected to start in 2028. Low-energy negative muons are produced by a high-intensity proton beam colliding with an upstream target and are... -
Souvik Chattopadhay (Department of Atomic Energy (IN))Applied research and new ideasTalk
Resistive Plate Chambers (RPCs) are widely used as tracking detectors in high-energy physics experiments due to their simplicity, robustness, and excellent timing performance. However, low-resistive bakelite RPC prototypes often exhibit secondary hit components that degrade time and position resolution and introduce background, complicating track reconstruction. In this work, we present a...
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Luca Quaglia (Universita e INFN Torino (IT))Alternative Mixtures and LongevityTalk
The gas mixtures employed in most RPC systems contain a high fraction of fluorinated greenhouse gases (F-gases), namely C2H2F4 (R134a) and SF6, which have been placed under intense scrutiny by the EU, aiming at a reduction in their availability and usage, making RPC operation more costly and less sustainable.
A possible long-term solution to this problem is to find eco-friendly alternatives...
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Guilherme Lickel (UNICAMP), Edmilson Manganote (CBPF and UNICAMP)Physics and SimulationPoster
Resistive Plate Chambers (RPCs) traditionally operate with a gas mixture based on C$_2$H$_2$F$_4$ (TFE) and SF$_6$, both high-GWP greenhouse gases facing growing regulatory and supply restrictions. C$_3$H$_2$F$_4$ (F-HFO) diluted with CO$_2$ has been proposed as a lower-GWP substitute for TFE, while its chlorinated variant, C$_3$H$_2$ClF$_3$ (Cl-HFO), has separately been explored as a streamer...
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CMS CollaborationAlternative Mixtures and LongevityPoster
Resistive Plate Chamber (RPC) detectors are widely used in major CERN experiments as muon trigger systems thanks to their excellent time resolution. However, the gas mixtures currently employed in RPCs contain greenhouse gases, such as C2H2F4 (R134a) and SF6, with Global Warming Potential (GWP) of 1430 and 22800 respectively, which contribute significantly to environmental emissions. During...
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Mariana Petris (Horia Hulubei National Institute of Physics and Nuclear Engineering (RO))Production and QATalk
For the next generation high interaction rate experiments or for the upgrade at higher luminosities of the running ones, the development of detectors with high counting rate capabilities and aging effects mitigation is a paramount topic in the detector research field. Using a low resistivity glass (~10$^{10}$ $\Omega$cm) in the assembling of timing Multi-gap Resistive Plate Chambers ...
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Massimiliano Vallocchia (Istituto Nazionale di Fisica Nucleare - Roma2)Applied research and new ideasPoster
Usual RPC readout is made with long strips a few centimeters wide which behave like signal transmission lines of quite good quality that inject the signal in the front-end electronics circuit located at the strips ends. We present here an alternative readout made with 40x40 cm2 square pads which strongly reduce the number of channels required to cover large sensitive areas.
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The signal pickup... -
Luca Quaglia (Universita e INFN Torino (IT))HEP performanceTalk
ALICE (A Large Ion Collider Experiment) is a multi-purpose detector installed at the CERN Large Hadron Collider (LHC). Its main goal is the characterization of the quark-gluon plasma (QGP) in ultra-relativistic heavy-ion collisions. The QGP is a state of nuclear matter where quarks and gluons are not confined into hadrons. In the forward rapidity region (2.5 < y < 4) ALICE is equipped with a...
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CMS CollaborationHEP performanceTalk
Run 3 data taking of the LHC will conclude in the summer of 2026. So far, the CMS experiment has accumulated 30.36 fb⁻¹ of proton-proton collision data at a center-of-mass energy of 13.6 TeV in 2026 alone, bringing the total for the entire Run 3 to 326.03 fb⁻¹. The CMS experiment is designed to identify muons robustly, efficiently and redundantly. One of the detectors used for this purpose is...
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Gabriele Maria GrittaniApplied research and new ideasTalk
Recent improvements in laser technology have allowed on one hand to reach unprecedented levels of energy and intensity and on the other hand to develop new target systems to produce ever more energetic electron beams. These developments have made it possible to accelerate electrons up to 10
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GeV in the space of 30 cm. The electron beam, interacting with a high-Z target can produce muons either... -
CMS CollaborationAlternative Mixtures and LongevityPoster
The improved Resistive Plate Chamber (iRPC) is a newly introduced detector in the CMS Phase-II Upgrade, designed to enhance muon detection efficiency in the forward region under the challenging conditions of the High-Luminosity Large Hadron Collider (HL-LHC). The detector was developed to operate at particle rates of up to 2 kHz/cm², corresponding to the expected background levels with an...
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Shintaro TANAKA (RCNP, The University of Osaka)HEP and Beyond HEP Applications TechniquesTalk
We are developing an MRPC for imaging the internal structure of volcanoes and estimating soil water content using cosmic-ray muons.
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Continuous observations of cosmic-ray muons may contribute to monitoring geophysical mass variations such as volcanic activity and soil moisture changes.
To identify high-energy penetrating muons, time-of-flight information from two MRPC layers is used to... -
Marco Sessa (INFN e Universita Roma Tor Vergata (IT))HEP performanceTalk
Resistive Plate Chambers (RPCs) have played a crucial role as muon-trigger detectors in the major experiments at the Large Hadron Collider (LHC), including ATLAS, CMS, and ALICE, since the beginning of LHC operations. In the ATLAS experiment, RPCs provide fast trigger signals for muon identification in the barrel region and constitute a fundamental component of the Level-1 (L1) muon trigger...
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Gianluca Rigoletti (CERN)Alternative Mixtures and LongevityTalk
Resistive Plate Chambers at the CERN LHC experiments are operated with gas mixtures based on R-134a, i-C4H10 and SF6. R-134a and SF6 are potent greenhouse gases, known for their high Global Warming Potential, and are therefore subject to decreasing availability due to the European regulation on F-gases.
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A mid-term solution was identified in reducing the use of R-134a by diluting the standard... -
CMS CollaborationHEP performancePoster
The CMS experiment is collecting proton-proton collision data at a center-of-mass energy of 13.6 TeV during LHC Run 3. Resistive Plate Chambers (RPCs) are an important component of the CMS muon system, providing fast timing information for the muon trigger and contributing to muon reconstruction. This study presents an updated evaluation of the CMS RPC detector performance using Run 3 data,...
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Marco Sessa (INFN e Universita Roma Tor Vergata (IT))Production and QATalk
Gas-volume production is the first crucial step in the construction of Resistive Plate Chambers (RPCs), and Quality Assurance/Quality Control (QA/QC) at the production site is essential to ensure the high quality of the new RPC detectors to be installed in a large-scale experiment such as ATLAS. The production of the gas volumes for the upgrade of the Barrel Inner (BI) layer of the Muon...
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CMS CollaborationProduction and QAPoster
In preparation for the Phase-II upgrade for the High-Luminosity LHC program, out of 72 improved Resistive Plate Chambers (iRPC) 36 are already installed and remaining 36 are to be installed in the third and fourth endcap disks of the Compact Muon Solenoid (CMS) during LS3. This new generation of RPC detectors will operate in a low-angle momentum (extending RPC coverage from pseudorapidity |η|=...
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Paolo Camarri (Università degli Studi di Roma "Tor Vergata" and INFN Roma Tor Vergata)HEP performanceTalk
The R&D activity which was needed for the required upgrade of the RPCs in view of the HL-LHC operation paves the way to the development of next-generation RPCs for general-purpose experiments at future colliders such as the Future Circular Collider (FCC) foreseen at CERN. The first big step will be the FCC-ee, which will study collisions of electron and positron beams with a center-of-mass...
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Dr Maxime Gouzevitch (Centre National de la Recherche Scientifique (FR))HEP and Beyond HEP Applications TechniquesTalk
The COMET experiment at J-PARC searches for the charged-lepton-flavour-
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violating process of coherent muon-to-electron conversion in a muonic atom,
μ−N → e−N , with a target single-event sensitivity of O(10−15) during Phase I,
which is expected to begin in 2028. Low-energy negative muons are produced
by collisions of a high-intensity proton beam with an upstream production tar-
get and... -
Mauricio Thiel (Universidade do Estado do Rio de Janeiro (BR))Physics and SimulationPoster
Resistive Plate Chambers (RPCs) are vital gaseous detectors used for precise particle detection and fast triggering in experiments like the Compact Muon Solenoid (CMS) at the LHC. Under high voltage (10 kV) and intense radiation, the standard gas mixture (95.2% $C_{2}H_{2}F_{4}$, 4.5% $i-C_{4}H_{10}$, 0.3% $SF_{6}$) undergoes molecular dissociation under electron avalanches. This cascade...
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Dario StoccoPhysics and SimulationTalk
There remains a significant discrepancy between the effective ionization rate measured at low pressure on a Pulsed Townsend (PT) setup and that obtained at ambient pressure with Resistive Plate Chambers (RPC). This mismatch becomes particularly pronounced at high reduced electric field strengths, i.e. equivalently in small-gap RPCs . In these fields, RPC measurements systematically yield lower...
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Gianluca Rigoletti (CERN)Applied research and new ideasTalk
Several gaseous detector installations at CERN make use of gas mixtures containing greenhouse gases, such as R-134a, SF6 and CF4. Due to the decreasing availability of these gases in the European Union and their consequent cost increase, several strategies have been implemented to reduce their use as much as possible.
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Gas systems are responsible for preparing the gas mixture, recirculating it... -
Luca Quaglia (Universita e INFN Torino (IT))Alternative Mixtures and LongevityPoster
The ALICE Muon IDentification (MID) system consists of 72 single-gap Resistive Plate Chambers (RPC), operated with a gas mixture composed of: 89.7% C2H2F4, 10% i-C4H10 and 0.3% SF6, with a 37% relative humidity content. To reduce gas consumption and emissions, the MID gas system is operated in closed loop mode with a recirculation fraction of 88%. The high concentration of fluorinated gases in...
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Alessandro Ferretti (Universita e INFN Torino (IT))Alternative Mixtures and LongevityTalk
The first batch of ALICE MID Resistive Plate Chambers was produced in 2005, more than twenty years ago. Since then, these gas gaps have either been operated in the ALICE MID or stored under controlled temperature conditions as spares.
In 2022, two MID gas gaps were replaced due to increasing dark currents and were subsequently studied with the ALICE RPC cosmic-ray test station in Torino....
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Marco Sessa (INFN e Universita Roma Tor Vergata (IT))Alternative Mixtures and LongevityTalk
The trigger system in the barrel region of the ATLAS experiment at CERN relies on about 3700 2 mm gas-gap Resistive Plate Chambers (RPCs), which will be upgraded during Long Shutdown 3 with an additional system of about 1000 new 1 mm gas-gap RPCs to be installed in the muon Inner Barrel. Since 2008 and until 2023, these detectors have been operated in avalanche mode with a gas mixture based on...
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CMS CollaborationPhysics and SimulationTalk
Resistive plate chambers (RPCs) are widely used in high-energy physics. The induced signal is a waveform correlated with the avalanche production. Waveform studies, besides allowing the measurement of induced electric charge and time quantities, can also serve as a probe for analyzing individual avalanche processes. Given new regulations that drastically limit greenhouse gas emissions,...
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CMS CollaborationAlternative Mixtures and LongevityPoster
Widely adopted in high-energy physics experiments, Resistive Plate Chambers (RPCs) face a significant challenge due to new regulations that severely limit allowable greenhouse gas emissions — including those typically used in RPC operation. As a result, finding a mixture with low global warming potential has become a priority for the gas detector community. In this context, we present an...
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Mr Yiding Zhao (USTC(University of Science and Technology of China))Applied research and new ideasTalk
This work investigates rate effects in a photoelectric resistive plate chamber (Photo-RPC) operated in single-photoelectron mode, focusing on the role of electrode bulk resistivity and the underlying mechanism of timing degradation. The detector has a 215 μm gas gap filled with R134a/SF6/i-C4H10 (90/5/5), and a 355 nm femtosecond pulsed laser is used to control the incident photoelectron rate....
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CMS CollaborationProduction and QATalk
The CMS RPC Construction Database was developed to support the large-scale production, certification, installation, and long-term traceability of Resistive Plate Chamber (RPC) detectors for the CMS experiment. Initially designed for the original CMS RPC construction campaign, the system has subsequently been extended and adapted to support multiple detector upgrade projects, providing a...
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CMS CollaborationPhysics and SimulationPoster
High energy collisions in LHC produce an enormous number of particles and consequently a large quantity of electronic signals, which is a challenge for the The Compact Muon Solenoid (CMS). The increasing instantaneous luminosity of the LHC, i.e. HL-LHC, will be in the order of 2 x 10^34 cm^(-2)s^(-1). In that context, the CMS Level-1 (L1) trigger system rapidly processes raw information of the...
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Bianca Sabiu (Universita e INFN, Bologna (IT))HEP performanceTalk
Multigap Resistive Plate Chambers (MRPCs) are gaseous detectors of choice for nuclear and particle physics experiments given their excellent time resolution, high efficiency and low cost. Among others, two large-area experiments have employed MRPCs for over 15 years: the ALICE Time-of-Flight (TOF) detector at the LHC and the Extreme Energy Events project (EEE).
The ALICE TOF is a key...
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Barbara Liberti (INFN e Universita Roma Tor Vergata (IT))Applied research and new ideasTalk
The TANGO_RD project aims to extensively characterize the physical behavior of Resistive Cylindrical Chambers (RCC), a new promising gas detector technology. This talk presents the three-year R&D program designed to deeply understand and optimize the RCC operational principles and to manufacture and test the first prototypes. We will first introduce the core characteristics, design advantages...
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Dayron Ramos Lopez (Universita e INFN, Bari (IT))HEP performanceTalk
Future collider experiments impose stringent requirements on muon detector technologies, demanding large-area coverage at low cost per channel, high detection efficiency, time resolution on the order of a few hundred picoseconds, and long-term operational stability. Resistive Plate Chambers (RPCs) remain strong candidates for next-generation muon systems, and ongoing R&D is pursuing thin-gap...
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RPC EcoGas@GIF++ CollaborationAlternative Mixtures and LongevityTalk
Gaseous detectors play a key role in particle physics, yet their operation often relies on fluorinated gases with very high Global Warming Potential. In particular, Resistive Plate Chambers (RPCs) operated in avalanche mode typically employ high-performance gas mixtures containing high-GWP components such as C₂H₂F₄ and SF₆.
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With increasing environmental concerns and progressively tighter...
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