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The muon spectrometer of the CMS (Compact Muon Solenoid) experiment at the Large Hadron Collider (LHC) is equipped with a redundant system made of Resistive Plate Chambers (RPCs) and Drift Tube (DT) chambers in the barrel, RPC and Cathode…

Instrumentation and Detectors · Physics 2017-06-22 M. I. Pedraza-Morales , M. A. Shaha , M. Shopova

The performance of pressurized drift-tube detectors at very high background rates has been studied at the Gamma Irradiation Facility (GIF) at CERN and in an intense 20 MeV proton beam at the Munich Van-der-Graaf tandem accelerator for…

CMS experiment will use Resistive Plate Chambers (RPCs) as dedicated muon trigger detectors. The first 24 RPCs for the barrel muon system of the CMS experiment have been assembled and tested. A brief description of the cosmic muon telescope…

Instrumentation and Detectors · Physics 2010-11-19 Borislav Pavlov

A new small-diameter Monitored Drift Tube (sMDT) chamber has been developed for the muon spectrometer of the ATLAS experiment to handle the higher collision rates expected at the CERN High Luminosity Large Hadron Collider (HL-LHC). This…

Instrumentation and Detectors · Physics 2021-12-08 Kevin Nelson , Yuxiang Guo , Dante Amidei , Edward Diehl

A tracking detector system has been constructed with an innovative approach to the classical multi-wire proportional chamber concept, using contemporary technologies. The detectors, covering an area of 0.58 square meters each, are optimized…

Instrumentation and Detectors · Physics 2016-08-30 Dezső Varga , Gábor Nyitrai , Gergő Hamar , László Oláh

The Muon Upgrade Phase II of the Compact Muon Solenoid (CMS) aims to guarantee the optimal conditions of the present system and extend the $\eta$ coverage to ensure a reliable system for the High Luminosity Large Hadron Collider (HL-LHC)…

Instrumentation and Detectors · Physics 2020-06-17 M. I. Pedraza-Morales

Triple-GEM detector technology was recently selected by CMS for a part of the upgrade of its forward muon detector system as GEM detectors provide a stable operation in the high radiation environment expected during the future…

Instrumentation and Detectors · Physics 2018-12-12 Aashaq Shah , CMS-Muon Collaboration

The CMS experiment, located at the Large Hadron Collider (LHC) in CERN, has a redundant muon system composed by three different gaseous detector technologies: Cathode Strip Chambers (in the forward regions), Drift Tubes (in the central…

Instrumentation and Detectors · Physics 2020-01-29 M. A. Shah , R. Hadjiska

We report on the construction and initial performance studies of two micromegas detector quadruplets with an area of 0.5 m$^2$. They serve as prototypes for the planned upgrade project of the ATLAS muon system. Their design is based on the…

The LHCb experiment(Fig. 1), that is presently taking data at CERN (European Center for Nuclear Research) Large Hadron Collider (LHC), aims at the study of CP violation in the B meson sector. Its key elements is the Muon detector [1], which…

Instrumentation and Detectors · Physics 2015-12-09 Valerio Bocci

Pressurized drift-tube chambers are efficient detectors for high-precision tracking over large areas. The Monitored Drift-Tube (MDT) chambers of the muon spectrometer of the ATLAS detector at the Large Hadron Collider (LHC) reach a spatial…

Instrumentation and Detectors · Physics 2016-10-04 B. Bittner , J. Dubbert , S. Horvat , O. Kortner , H. Kroha , F. Legger , R. Richter , S. Adomeit , O. Biebel , A. Engl , R. Hertenberger , F. Rauscher , A. Zibell

The central detector in the MuSun experiment is a pad-plane time projection ionization chamber that operates without gas amplification in deuterium at 31 K; it is used to measure the rate of the muon capture process $\mu^- + d \rightarrow n…

The Micro Pixel Chamber (mu-PIC) using resistive electrodes has been developed and tested. The surface cathodes are made from resistive material, by which the electrical field is reduced when large current is flowed. Two-dimensional…

Instrumentation and Detectors · Physics 2015-06-17 Atsuhiko Ochi , Yuki Edo , Yasuhiro Homma , Hidetoshi Komai , Takahiro Yamaguchi

A new type of resistive plate chamber with thin-film electrodes based on diamond-like carbon is under development for background identification in the MEG II experiment. Installed in a low-momentum and high-intensity muon beam, the detector…

Instrumentation and Detectors · Physics 2023-07-19 Kensuke Yamamoto , Sei Ban , Kei Ieki , Atsuhiko Ochi , Rina Onda , Wataru Ootani , Atsushi Oya , Masato Takahashi

New developments in Thin Gap Chambers (TGC) detectors to provide fast trigger and high precision muon tracking under sLHC conditions are presented. The modified detectors are shown to stand a high total irradiation dose equivalent to 6…

The Resistive Plate Chambers detector system at the CMS experiment at the LHC provides robustness and redundancy to the muon trigger. A total of 1056 double-gap chambers cover the pseudo-rapidity region < 1.6. The main detector parameters…

Instrumentation and Detectors · Physics 2016-05-31 Mehar Ali Shah

New Micromegas (Micro-mesh gaseous detectors) are being developed in view of the future physics projects planned by the COMPASS collaboration at CERN. Several major upgrades compared to present detectors are being studied: detectors…

Composite detectors made of stainless steel converters and multigap resistive plate chambers have been irradiated with quasi-monoenergetic neutrons with a peak energy of 175MeV. The neutron detection efficiency has been determined using two…

Dual-phase liquid xenon time projection chambers are the core detector elements of many experiments that conduct searches for Dark Matter and rare events, as well as in neutrino and high-energy physics. As part of this detector technology,…