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Yuki Mitsuya03/07/2013, 16:45The GEM is widely used in variety of applications today, but its flexible structure requires careful handling. The GEM is also made of organic material, so it emits outgas. Therefore, we have developed a Glass GEM, whose substrate is made of Photosensitive Etching lass, PEG3 from HOYA Corporation. The conventional GEMs have a simple structure of thin foil with many tiny holes, but its...Go to contribution page
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Rafael M Gutierrez (Universidad Antonio Nariño)03/07/2013, 16:45In this work we present the progress of the MPGD laboratory at the Universidad Antonio Nariño (UAN), Bogotá, Colombia. This is a new facility for research, development, training and new applications of MPGDs and related technologies. Along with the RD51-CERN, this laboratory is also supported by a new PhD program in applied science at the UAN. This is an effort of the UAN to continuo and...Go to contribution page
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Pedro Manuel Mendes Correia (University of Aveiro (PT))03/07/2013, 16:45Charging-Up of the insulator surfaces in MicroPatterned Gas Detectors (MPGDs) have been pointed as one of the responsible for the difference between experimental and Monte Carlo results. In this work an iterative method to simulate the charging-Up in Gas ectron Multiplier (GEM) and in the Thick-Gas Electron Multiplier (THGEM) is propose. The method consists on the simulation of the avalanches...Go to contribution page
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Andre Zibell (Ludwig-Maximilians-Univ. Muenchen (DE))03/07/2013, 16:45High-rate capable micro-pattern gas detectors, as miromegas, are foreseen to replace the current detectors in the innermost foreward region of the ATLAS small wheel systems. In 2012, two micromegas prototype detectors have been installed inside the ATLAS myon spectrometer in front of a CSC detector. To read the data from these detectors together with the other ATLAS subsystems, a ReadOutDriver...Go to contribution page
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Xie Yuguang03/07/2013, 16:45We report the successful development of Au-coated THGEM totally based on homemade industrial PCB technology in China. The THGEMs with various dimensions and substrates had been made and tested. The production capability covers $500\times1000$ mm$^2$ sensitive area, hole diameter down to 200 um, thickness down to 150 um, rim from 10 to 120 um, different substrates, and mass production...Go to contribution page
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Saitkat Biswas (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))03/07/2013, 16:45In the GSI detector laboratory a test setup has been installed for the study of the characteristics of the Gas Electron Multiplier (GEM). GEMs will be used as trackers in the Muon Chamber in the future Compressed Baryonic Matter (CBM) experiment. The characteristics of triple GEM detectors have been studied systematically by using cosmic ray muons. The minimum ionizing particle (MIP) spectra...Go to contribution page
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Dr Atsuhiko Ochi (Kobe University (JP))03/07/2013, 16:45New MPGD production method, forming resistive electrodes by metal/carbon sputtering, has been developed. Both fine electrodes structure (<50 micron) forming and large area production (>1m^2) are available using this method. The surface resistivity is controlled within a few tens percent of uniformity in the range of 100kΩ/sq. – 10MΩ/sq. Those properties are very useful for ATLAS MicroMEGAS...Go to contribution page
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Piotr Jan Gasik (Technische Universitaet Muenchen (DE))03/07/2013, 16:45ALICE at the CERN-LHC is planning a major upgrade of the central barrel detectors to cope with an increase of the LHC luminosity in Pb-Pb after 2018. The goal is to record Pb-Pb interactions at a rate of 50-100 kHz after Long Shutdown 2 (LS2), which is a factor of about 100 more the current data acquisiton rate. For the Time Projection Chamber (TPC) this implies replacement of the existing...Go to contribution page
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Ana Luisa Silva (University of Aveiro)03/07/2013, 16:45The THCOBRA [1] consists on a hybrid device combining characteristics of a THGEM and a MHSP in one single structure. The structure presents two multiplication stages allowing to reach the high gains needed to use resistive line readout methods. The 2D-THCOBRA structure used has an active area of about 10x10 cm2. The 2D-THCOBRA have shown a fair energy resolution capability of about 22% (FWHM)...Go to contribution page
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Yacine Haddad (Ecole Polytechnique (FR))03/07/2013, 16:45Digital sampling calorimeter with gaseous sensor layer can be used as Particle Flow Orientated calorimeter, since its homogeneous, robust and cost-efficient. The response of digital gaseous calorimeter can be characterized with efficiency and multiplicity. To validate the simulation tool and to enable further simulation-based analysis as well as data-MC comparison, we developed a general...Go to contribution page
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Sebastien Procureur (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))03/07/2013, 16:45Modern particle physics experiments frequently require the detection of particles on large areas, with an excellent spatial resolution. The resulting detectors usually contain thousands of readout elements – strips, pixels, pads – and consequently the same number of electronic channels. In most cases, the electronics budget therefore becomes significant in the total cost of the project. It...Go to contribution page
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Kondo Gnanvo (University of Virginia (US))03/07/2013, 16:45The Super Big Bite Spectrometer (SBS) is Hall A firt new equipment in preparation for the 12 GeV upgrade of the CEBAF accelerator at Thomas Jefferson National Accelerator facility (JLab). University Of Virginia (UVa) is in charge of building of the GEM-based Polarimetry Back Tracker system for SBS. The Back Tracker is made of 8 large area (50 × 200 cm2) chambers. Each chamber is assembled...Go to contribution page
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Szymon Gburek03/07/2013, 16:45Requirements for detector – electronics system and its operation in solar X-ray experiments are discussed. Addressed are the issues related to readout method, thermal stability, radiation hardness, mechanical robustness, data acquisition and telemetry. Examples of solutions used in modern solar X-ray missions are shown. Discussion of the requirements for Micro Pattern Gaseous Detectors and...Go to contribution page
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Stephanie Zajac03/07/2013, 16:45The next frontier in QCD research involves the construction of an Electron-Ion Collider (EIC), whose desired capabilities will include particle identification up to ~ 60 GeV/c. Particle identification capabilities require a momentum spectrometer and a precision velocity measurement. Here, we achieve velocity resolution via a RICH detector by measuring the Cherenkov angle of the radiation,...Go to contribution page
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Szymon Gburek03/07/2013, 16:45X-ray observations of the solar corona have been undertaken in Solar Physics Division of Space Research Centre of the Polish Academy of Sciences (SRC-PAS) in Wroclaw, Poland for more than four decades. A review of SRC-PAS satellite solar experiments and their measurements is shown with a particular focus on the latest ones. Various types of gaseous and solid state detectors used in space X-ray...Go to contribution page
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Ryo Yonamine03/07/2013, 16:45Unprecedented charged particle momentum resolution is required for precision Higgs studies at the International Linear Collider (ILC), which in turn demands as many as 200 sampling points with a high spatial resolution of 100 microns or better if we are to adopt a TPC for the central tracker. We discuss a novel theoretical resolution formula for a GEM-readout TPC, which is applicable to...Go to contribution page
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Kohei Terasaki (University of Tokyo (JP))03/07/2013, 16:45Ion Back Flow (IBF) suppression is essential for limiting the space-charge distortions in the upgraded ALICE TPC, where continuous readout is foreseen. GEM technology is one possible solution to achieve small IBF and to keep good performance in terms of particle tracking and particle identification at high rates. The development of readout chambers for the ALICE TPC with single mask GEMs is...Go to contribution page
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L. F. N. D. Carramate03/07/2013, 16:45The main goal of this work is to study the performance of a triple GEM (Gas Electron Multiplier) detector, envisaging the development of high detection efficiency detectors for X-ray imaging applications. Preliminary studies were done using a triple GEM detector in a standard configuration filled with krypton and xenon at atmospheric pressure. First results shows a stable operation at high...Go to contribution page
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Astrid Muennich (DESY)03/07/2013, 16:45A Time Projection Chamber (TPC) using micro-pattern gas detectors is planned as the tracking device for the next linear collider. A novel support structure for GEMs, which minimizes the material and improves the flatness of the foils, has been developed and tested with multiple GEM modules in a large TPC prototype at DESY. Reducing dead material at the GEM module boundaries improves the field...Go to contribution page
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joao veloso (university of aveiro)03/07/2013, 16:45A new VUV single-photon gaseous photomultiplier with position capability will be presented. It is based on a triple cascade of two THGEM followed by a 2D-THCOBRA with a CsI photocathode deposited on the top electrode of the first structure. To allow high gain at low voltage a mixture of Ne/CH4 at atmospheric pressure was used. The gas mixture also provide excellent photoeletron extraction from...Go to contribution page
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