Conveners
Detector operation and performance: Detector operation and performance 1
- Roberto Guida (CERN)
Detector operation and performance: Detector operation and performance 2
- Florian Maximilian Brunbauer (CERN)
Detector operation and performance: Detector operation and performance 3
- Anatoli Romaniouk (National Research Nuclear University MEPhI (RU))
Detector operation and performance: Detector operation and performance 4
- Piotr Gasik (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
The presentation will deal with the numerous irradiation tests performed before the construction of
the ATLAS Big-Wheels (BW) TGC’s, as well as irradiation tests performed before the construction of
the New Small Wheel (NSW) sTGC’s. The results achieved by following the charge deposited by MIP’s
in each individual detector plane after 11 years of operation will be shown. A presentation...
The muon detector of LHCb, which comprises 1368 multi-wire-proportional-chambers (MWPC) for a total area of 435 m2, is the largest instrument of its kind exposed to such a high-radiation environment. In nine years of operation, from 2010 until 2018, we did not observe appreciable signs of ageing of the detector in terms of reduced performance. However, during such a long period, many chamber...
The LHCb experiment is designed to study B-decays at the LHC, and as such is constructed as a forward spectrometer. The large particle density in the forward region poses extreme challenges to the subdetectors, in terms of hit occupancies and radiation tolerance.
To accurately and efficiently detect the charged decay particles in the high-density particle environment of the LHC the Outer...
Large size hybrid Micromegas gaseous detectors (40x40 cm² active area) were developed and installed in 2015, in view of the COMPASS2 physics program which started that year. That program involved in particular two years of Drell-Yan studies based on a high intensity pion beam on a thick polarized target. Although the detectors were placed behind an thick absorber, they were exposed to...
The MicroBooNE experiment is a Liquid Argon Time Projection Chamber (LArTPC) placed along Booster Neutrino Beam (BNB) at Fermilab. MicroBooNE ran its physics and R&D runs from 2015 through 2021. Its primary physics goal is to contribute to addressing the elusive short-baseline MiniBooNE low energy excess. MicroBooNE records and utilizes both the ionization charge and scintillation light...
The ALICE Muon IDentifier is composed by 72 single gap bakelite Resistive Plate Chambers, which have been operational since 2009 in maxi-avalanche mode (discrimination threshold:7 mV without amplification) with a tetrafluoroethane/isobutane/sulfur hexafluoride gas mixture, undergoing counting rates of the order of tens of Hz/cm^2.
In this talk, the long-term performance and stability of...
540 Cathode Strip Chambers (CSC), a type of multi-wire promotional chamber, provide precise measurements of muon track coordinates in the CMS endcap region (pseudorapidity: 0.9-2.4) In the HL-LHC lifespan the CSC performance might degrade, in a process often called “aging”, due to the unprecedented high radiation dose. To this end, the CSC group has been conducting irradiation tests at the...
Two 50 cm long protype sMDT drift tubes have been irradiated using
beta-electrons from ^{90}Sr-^{90}Y decays with end point energy of 2.28 MeV.
Over two periods of 100 days and 125 days, respectively, the tubes were drawing
constant currents of 3 uA and 1.25 uA. Regions of approximately 10 cm of
the wires were irradiated intensively. Almost 40 C of charges have
been accumulated in...
Good and safe long-term operation of gaseous detectors are mainly guaranteed by the quality and stability of their gas mixture. Among Micro Pattern Gaseous Detectors (MPGD), Triple Gas Electron Multipliers (Triple-GEMs) have lately been more and more considered as tracking devices for LHC Experiments Muon Systems, as well as for others physics applications. Triple-GEM detectors are commonly...
