The India-based Neutrino Observatory (INO) collaboration is planning to build a 50 kiloton magnetized Iron Calorimeter (ICAL) to precisely study the atmospheric neutrino oscillation parameters. The collaboration has chosen Resistive Plate Chambers (RPCs) made up of float glass electrodes of 1.9 m × 1.8 m in area as the active detector elements and is going to deploy 28,800 of them in the ICAL...
The Resistive Plate Chamber (RPC) detector system at the Compact Muon Solenoid experiment at the LHC confers robustness and redundancy to the muon trigger. A total of 1056 double-gap chambers cover the pseudo-rapidity region |η|≤1.6 . All ancillary system (high voltage, low voltage, environmental, gas, and cooling) are constantly and closely monitored to achieve operational stability and high...
INO/ICAL pilot experimental set up is running at TIFR,MUMBAI . Large area glass RPC detectors are under test on a continuous basis. The detector stack has capacity of 12 glass RPCs of maximum 2m x 2m size , connected in parallel . RPCs are continuously purged individually, with gas mixture of R134a , Isobutane and Sulphur Hexafluoride at a steady rate of 6 SCCM to maintain one volume change a...
Resistive Plate Chambers (RPC) made of both glass and bakelite plates are under test and characterization processes as part of the detail R&D work for the ICAL detector setup of India-based Neutrino observatory [1]. A uniform response from the whole chamber is an important requisite for large area coverage (∼ 100,000 m2 ) of the ICAL which along with the large mass (∼ 50 kiloton) will help to...
Two barometric pressure sensor is used to measure both pressure and temperature of the atmosphere and inside of the RPC. These sensors sensor have an accuracy of 0.06hPa (0.6mmWC). After pressurizing the RPC, pressure difference between inside and outside is monitored for over 24 hours. One measurement sample is take in each 5 seconds and send over UDP packets to a computer and plotted...
The CMS experiment, located at the CERN Large Hadron Collider, has a redundant muon system composed by three different detector technologies: Cathode Strip Chambers (in the forward regions), Drift Tubes (in the central region), and Resistive Plate Chambers (both its central and forward regions). All three are used for muon reconstruction and triggering. During the first long shutdown (LS1) of...
A brief description and first preliminary results of the Efficiencies and Cluster Size measurements of the CMS Resistive Plate Chambers, will be presented inside the Gamma Irradiation Facility GIF++ at CERN. Preliminary studies that sets the base performance measurements of CMS RPC for starting aging studies.
We present the results of the simulation of a 10ˆ3−10ˆ4 mˆ2 sampling calorimeter, made of RPCs with analog readout and soil or concrete as aborber. This instrument, deployed at high altitude, would be able to measure cosmic rays in the energy range 1 GeV - 1 PeV, triggered by isolated or quasi-unaccompanied hadrons. A study of optimization of the geometry layout and the electronic readout...
We present the results of the simulation of a multi-gap RPC system, with electrodes suited to increase the RPC efficiency to detect sub-MeV photons. The use of new materials, as well as the layout optimization, provide improved sensitivity while preserving the robustness and the cheapness of the RPC approach. Details on the conversion probability, the opacity of the electrode and the overall...
New eco-friendly gas mixtures are being searched for use in RPC muon detectors of the CMS experiment at the CERN LHC collider. The search must be complemented by detailed studies of the interactions of candidate ecogases with materials utilized in RPC detectors. The strategy followed is two-fold, namely a static and a dynamic search. The static search is performed by comparing materials...
The Endcap Time of Flight of BESIII(Beijing Spectrometer III) was upgraded with the Multi-gap Resistive Plate Chamber (MRPC), and time resolution was required better than 100 ps. The cosmic ray test was carried out for the MRPC detectors gathered with the new designed electronics. In the cosmic ray test the construction quality and joint operation of whole detector system were checked, and the...
The BGOegg experiment located at SPring-8 Synchrotron radiation facility in Japan was started since April 2014. The main goal of the experiment is to study the photoproduction of hadrons from the interaction of high energy photon and several targets like carbon, liquid hydrogen. For the purpose of measuring the recoiled proton from the reaction p(γ,p)X, where X is a meson, we have built a...
The BGOegg experiment located at SPring-8 Synchrotron radiation facility in Japan was started since April 2014. The main goal of the experiment is to study the photoproduction of hadrons from the interaction of high energy photon and several targets like carbon, liquid hydrogen. For the purpose of measuring the recoiled proton from the reaction p(γ,p)X, where X is a meson, we have built a...
