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Dr Craig Woody (Brookhaven National Lab)13/10/2015, 15:50ApplicationsPosterAt large angles (typically greater than ~ 20 degrees), the resolution of conventional GEM tracking detectors deteriorates rapidly due to the increased charge spread along the track direction in the collection gap. In order to circumvent this problem, a minidrift GEM tracking detector has been developed that measures both the position and arrival time of the charge deposited in the drift gap,...Go to contribution page
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Dr Barbara Alvarez Gonzalez (CERN)13/10/2015, 15:50Material and Ageing TestsPosterA resistive-MicroMegas quadruplet built at CERN, serving as prototype of the micromegas for the upgrade of the ATLAS muon system, has been installed at the new CERN Gamma Irradiation Facility (GIF++) with the aim of carrying out a long-term aging study. The detector has four active layers about 0.5 m2 each equipped with 1024 read-out strip and sputtered resistive layer for spark protection. ...Go to contribution page
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Mr Fabian Kuger (CERN / University of Würzburg (Germay))13/10/2015, 15:50Production techniquesPosterThe development work carried out at CERN to push the MicroMegas technology to a new frontier is now coming to an end. The construction of the first anode (or read-out) boards for the upgrade of the ATLAS muon system will demonstrate in full-scale the feasibility of this ambitious project. The read-out boards, representing the heart of the detector, are manufactured in industries, making the...Go to contribution page
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Dr Atsuhiko Ochi (Kobe University)13/10/2015, 15:50Production techniquesPosterMicroMegas with resistive anode will be used for the NSW upgrade of the ATLAS experiment at LHC. The resistive electrode is one of key technology for MPGDs to prevent sparks. Large area resistive electrodes for the MM have been developed using two different technology; screen printing and carbon sputtering. Maximum size of each resistive foil is 45cm x 220cm with printed pattern of 425 micron...Go to contribution page
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Dr Mickaël Frotin (LLR)13/10/2015, 15:50ApplicationsPosterThe HARPO detector is a demonstrator of gamma-ray detector and polarimeter, for a potential space telescope. It is a (30cm) 3 cubic TPC filled with high pressure (up to 4bar) Ar:isobutane mixture. It has been tested with cosmic rays and in a high intensity gamma-ray beam. The TPC data, in particular from cosmic rays, can be used to monitor the gas properties (gain, drift velocity and...Go to contribution page
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Annika Vauth (DESY)13/10/2015, 15:50MPGD Detector PhysicsPosterThe International Large Detector (ILD) is one of two detector concepts at the ILC. It relies on highly granular calorimetry and a high precision tracking system. The tracking system consists of a Silicon vertex detector, forward tracking disks and a large volume Time Projection Chamber (TPC), which will be read out with micro-pattern gas detectors (MPGD). Within the framework of the LCTPC...Go to contribution page
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Mr Viktor Ratza (Helmholtz-Institut für Strahlen- und Kernphysik, Germany)13/10/2015, 15:55MPGD Detector PhysicsPosterIn the context of the upgrade of the LHC during the second long shutdown the interaction rate of the ALICE experiment will be increased up to 50 kHz for Pb-Pb collisions. As a consequence, a continuous operation and read-out of the Time Projection Chamber (TPC) will be required. To handle the expected increase of space-charge distortions without a gating grid, the ion backflow of the charge...Go to contribution page
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Dr Marek Michael GRUCHALA (CERN)13/10/2015, 15:55MPGD Detector PhysicsPosterGas electron multiplier (GEM) technology is being proposed for the forward muon upgrade of the CMS detector for the Phase 2 of the CERN LHC. The proposed prototypes for CMS upgrade, referred to as GE1/1 detectors, are large-area trapezoidal shaped detectors using three GEM-foils arranged in the 3/1/2/1mm gap configuration with 3072 radial readout strips segmented over 24 readout sectors in the...Go to contribution page
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Dr Thorsten Lux (IFAE)13/10/2015, 15:55New Developments in MPDGsPosterThe International Large Detector (ILD) concept for the International Linear Collider (ILC) features a GEM- or Micromegas-based Time Projection Chamber (TPC) as a central tracking detector. Considering the background environment of a high density of charged tracks at the ILC, a gating system located between the drift volume and the gas amplification device of the TPC to prevent positive...Go to contribution page
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Mr Konstantinos Ntekas (National Technical University of Athens)13/10/2015, 15:55MPGD Detector PhysicsPosterResistive Micromegas (Micro MEsh Gaseous Structure) detectors have proven along the years to be a reliable high rate capable detector technology characterised by an excellent spatial resolution. The ATLAS collaboration at LHC has chosen the resistive Micromegas technology, along with the small-strip Thin Gap Chambers (sTGC), for the high luminosity upgrade of the inner muon station in the...Go to contribution page
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Dr Michael Tytgat (UGent)13/10/2015, 15:55Production techniquesPosterThe CMS GEM collaboration plans to equip the very forward muon system with triple GEM detectors that can withstand the environment of the high-luminosity LHC. This project is at the final stages of R&D and moving to production. An unprecedented large area of several 100 qm are to be instrumented with GEM detectors which will be produced in six different sites around the world. A common...Go to contribution page
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Dr Sharma Archana (University of Wisconsin)13/10/2015, 15:55Simulation and SoftwarePosterThe new GE1/1 system of Gas Electron Multipliers (GEM) is going to be installed in the CMS detector in the forward region of 1.6 < |η| < 2.2 after the second long LHC shutdown. 36 super-chambers are planned to be installed in order to ensure the redundancy and robustness of the muon system in high-luminosity conditions at the LHC. A further extension of the GEM system is also considered. Every...Go to contribution page
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Dr Philippe Gros (LLR, Ecole Polytechnique)13/10/2015, 16:00ApplicationsPosterGamma-ray astronomy has become an important branch of astroparticle physics. It now suffers from a sensitivity gap in the 1-100MeV range. Compton telescopes lose sensitivity above 1MeV, and pair production telescopes, due to multiple scattering, have low resolution and high background below a few 100MeV. HARPO proposes a gaseous detector, a TPC, to fill this gap and improve angular resolution...Go to contribution page
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Prof. João Veloso (University of Aveiro)13/10/2015, 16:00MPGD Detector PhysicsPosterRecent investigations with a gaseous avalanche micropatterned detector operating in Kr-Xe mixtures will be presented. The use of such mixtures allows to keep a minimal position resolution over a wide X-ray energy range [1]. Measurements and simulations of the gain, energy and position resolution variation according to the Xenon mixture concentration will be presented. Our first results using a...Go to contribution page
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Dr Thorsten Lux (ETH, Zurich)13/10/2015, 16:00New Developments in MPDGsPosterA giant (10-50 kt) Liquid Argon Time Projection Chamber (LAr- TPC) has been proposed as the detector for an underground observa- tory for the study of neutrino oscillations, neutrino astrophysics and proton decay. This detector has excellent tracking and calorimetric capabilities, much superior to currently operating neutrino detectors. LBNO-DEMO (WA105) is a large demonstrator of the...Go to contribution page
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Ms Megu Kubota (RIKEN/Tokyo University of Science)13/10/2015, 16:00Production techniquesPosterWe have developed a gas electron multiplier (GEM) for the NASA small satellite mission, PRAXyS (Polarization from Relativistic Astrophysical X-ray Sources), which carries a photoelectron tracking type gas X-ray polarimeter using a time projection chamber technique. The GEM foil has a hole diameter of 70 um, hole pitch of 140 um, and insulator thickness of 100 um. We adopted a liquid crystal...Go to contribution page
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Mr Benoit Mauss (GANIL)13/10/2015, 16:00Material and Ageing TestsPosterActive targets are gas-filled detection systems where the gas used as the detection medium serves also as a target for nuclear reactions. They have been used for a wide variety of nuclear physics experiments since the eighties. Improvements in MPGD (Micro Pattern Gaseous Detectors) and in micro electronics achieved in the last decade have lead to the development of a new generation of active...Go to contribution page
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Mr Christoph Krieger (University of Bonn)13/10/2015, 16:00ApplicationsPosterThe CERN Axion Solar Telescope (CAST) is searching for axions and other particles which could be candidates for Dark Matter and even Dark Energy. These particles could be produced in the Sun and detected by a conversion into soft X-ray photons inside a strong magnetic field. This field is provided by a decommissioned LHC prototype dipole magnet accurately pointed towards the Sun. In order to...Go to contribution page
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Dr Seongtae Park (CAPP/IBS)13/10/2015, 16:00ApplicationsPosterFinding nonzero EDM (electric dipole moment) in a fundamental particle would signal strong CP violation and consequently it could explain matter and antimatter asymmetry in our universe. The storage ring proton Electric Dipole Moment (pEDM) experiment is one of the EDM searches using storage ring aiming sensitivity level of 10-29 e·cm per year. In the experiment, the stored polarized protons...Go to contribution page
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Mr Kazuki Komiya (Tokyo Metropolitan Industrial Technology Reserach Institute)13/10/2015, 16:10New Developments in MPDGsPosterIn general, the GEM electrode is based on an organic material such as Polyimide or Liquid Crystal Polymer. However, they cause making short circuit between electrodes by discharge, emitting a lot of gas in high temperature envelopment, and more expensive by a lot of manufacturing process. Therefore the electrode has not higher reliability and the GEM in a sealed chamber is still not appearing...Go to contribution page
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Dr Sebastian White (Princeton University)13/10/2015, 16:10New Developments in MPDGsPosterThere is a growing interest in applying timing measurement of physics objects (leptons, jets, photons) in the high pileup environment planned for the next decade at the LHC. Time of occurrence of events within the same bunch (“in-time pileup”) can be used analogously to the more commonly used “event vertex position” tagging to resolve events of interest in this busy environment. Extending to...Go to contribution page
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Ms CHRYSOULA VASSOU (NCSR Demokritos)13/10/2015, 16:10Production techniquesPosterMicromegas is a well-known micro-pattern gaseous detector with excellent properties in operation stability, position resolution, fast response, low ion feedback (about 10%) and good energy resolution. It can be adapted to detect the full range of particle radiation like photons, x-rays, neutrons, charged particles, alphas, nuclei etc. Micromegas implementation is based on PCB manufacturing...Go to contribution page
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Mr Vladyslav Krylov (LAL - Orsay, T. Shevchenko National University - Kyiv)13/10/2015, 16:10ApplicationsPosterLarge area single-electron sensitive gaseous detector consisting of Micromegas/InGrid as gas multiplication device and integrated CMOS ASIC as a replacement of the conventional pad/strip readout, is a promising candidate for comprehensive tracking systems serving also the trigger for future HEP projects. Challenges for the InGrid concept for TPC detector systems are the large number of...Go to contribution page
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Paolo Iengo (CERN)13/10/2015, 16:10New Developments in MPDGsPosterThick-Groove is a recently developed device belonging to the Micro Pattern Gaseous Detector (MPGD) family. It has been specifically designed for cosmic ray tomography, having the potential to be easily produced on industrial scale. The Thick-Groove detector (TGD) has a large conversion region (few mm up to few cm) and an amplification region less than 1 mm wide. Anode and cathode strips are...Go to contribution page
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Mr Hiroyuki Sugiyama (Hamamatsu Photonics K.K.)13/10/2015, 16:10Production techniquesPosterA Micro-patterned gaseous detector (MPGD) is one of the most attractive and useful detector in various field. A Hole-type MPGD with glass capillary plate (CP) is the most promising detector to provide two-dimensional imaging capability with a good position resolution and highly reliable to discharge. CP gaseous detectors have been intensively studied for the purposes of X-ray radiography,...Go to contribution page
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Shuddha Shankar Dasgupta (T)13/10/2015, 16:10New Developments in MPDGsPosterA novel MPGD based architecture for single photon detection has been developed to overcome the limitations of the present generation of gaseous single photon detectors when large area coverage is needed (~ m2). It couples two different MicroPatternGasDetector structures, the THickGasElectronMultiplier and the Micromegas, resulting in a hybrid scheme able to exploit the properties and the...Go to contribution page
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Giovanni Bencivenni (LNF)13/10/2015, 16:10New Developments in MPDGsPosterIn this work we present the micro-Resistive WELL (micro-RWELL): a compact spark-protected single amplification stage MPGD. The micro-RWELL is realized by merging a suitable etched GEM foil with the readout PCB plane coated with a resistive deposition. The copper on the bottom side of the foil has been patterned in order to create small metallic dots in correspondence of each WELL structure....Go to contribution page
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Dr Ewa Kowalska-Strzęciwilk (IPPLM)13/10/2015, 16:15Production techniquesPosterThis abstract is devoted to design and assembling of GEM detectors for plasma radiation application. In this work we will report the results of mounting of two triple-GEM detectors with different dimensions 100x100mm2 and 200x20mm2. A description of the assembling procedures including the gluing/stretching techniques and selection of materials is given in this work. Particular attention was...Go to contribution page
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Dr Maryna Chernyshova (Institute of Plasma Physics and Laser Microfusion)13/10/2015, 16:15ApplicationsPosterTungsten, being a main candidate for the plasma facing material in ITER and future fusion reactor for some time [1], has recently started to be used as such on many machines, including on the WEST project, where an actively cooled tungsten divertor is being implemented. Inevitably, this forced a creation of the ITER-oriented research programs aiming to effectively monitor the impurity level of...Go to contribution page
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Ms Katie Ley (AWE)13/10/2015, 16:15ApplicationsPosterThick gaseous electron multiplier detectors are cheap, robust and scalable to large areas. Here we consider the application of THGEM technology to cosmic-ray muon scattering tomography in support of nuclear security. Muon tomography applications include the passive scanning of cargo containers for regions of abnormally high density, indicative of concealed special nuclear material. THGEMs are...Go to contribution page
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Mr Simon Bouteille (CEA-Saclay)13/10/2015, 16:15ApplicationsPosterThe recent development concerning MPGDs, in particular with the work done by the R&D51 collaboration, makes us able to build large and robust detectors. These characteristics suit well the needs of a lot of applications which use the cosmic rays muons to make the tomography of large objects. However, these applications need the muon telescope to be run outside and with a low energy...Go to contribution page
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Mr Filippo Resnati (ETHZ / CERN)13/10/2015, 16:15ApplicationsPosterESS instruments like the macromolecular crystallography instrument NMX require an excellent neutron detection efficiency, high-rate capabilities, time resolution, and an unprecedented spatial resolution in the order of a few hundred micrometers over a wide angular range of the incoming neutrons. For these instruments solid converters in combination with Micro Pattern Gas Detectors (MPGDs) are...Go to contribution page
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Mr Jianrong ZHOU (Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS))13/10/2015, 16:15ApplicationsPosterAbstract: With the international development of the new generation neutron source, the traditional neutron detector can't satisfy the demand of the application of the high flux especially. And facing the global crisis of 3He supply, the research on the new style of the neutron detector becomes extremely urgent. Considered with the development demand of the domestic neutron scattering facility...Go to contribution page
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Dr Sebastien Procureur (CEA-Saclay)13/10/2015, 16:15ApplicationsPosterThe development of large and robust MPGDs has opened the door to a vast new field of applications. Among them, the detection of Special Nuclear Material (SNM) in goods transportation has the highest potential in terms of emerging market and mass production. Most of the current detection methods are based on artificial radiations (X-rays, gammas or neutrons), which all suffer from several...Go to contribution page
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Mrs Palma Rita Altieri (Università degli Studi di Bari & INFN)13/10/2015, 16:20ApplicationsPosterIn recent years, a remarkable scientific and technological progress led to the construction of accelerators based facilities dedicated to hadrontherapy was done. This kind of technology requires precise and continuous control of position, intensity and shape of the ions or protons used to irradiate cancers. Patient safety, accelerator operation and dose delivery should be optimized by a real...Go to contribution page
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Dr Éric Berthoumieux13/10/2015, 16:20New Developments in MPDGsPosterA new transparent XY-MicroMegas neutron beam profiler M. Diakaki(1), E. Berthoumieux(1), T. Papaevangelou(1), F. Gunsing(1,3), E. Dupont(1), M. Kebbiri(1), S. Anvar(1), P. Sizun(1), E. Monmarthe(1), D. Desforge(1), D. Jourde(1), M. Sabaté-Gilarte(3), L. Tassan-Got(2), L. Audouin(2), E. Ferrer-Ribas(1), J. Heyse(5), P. Schillebeeckx(5), C. Paradela(5), F. Belloni(5) 1) ...Go to contribution page
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Dr Bartosz Mindur (AGH University of Science and Technology)13/10/2015, 16:20ApplicationsPosterThe basic principle of an X-ray imaging system based on a large area 10cm x 10cm GEM (Gas Electron Multiplier) detector equipped with 2-dimensional readout and its application to mapping of pigment distributions in historical paintings using X-ray fluorescence technique has been already demonstrated in our previous works. The key components of the developed system are: X-ray tube, adjustable...Go to contribution page
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Dr Tomasz Czarski (Institute of Plasma Physics and Laser Microfusion)13/10/2015, 16:20ApplicationsPosterThe measurement system based on GEM - Gas Electron Multiplier detector is developed for X ray diagnostics of magnetic confinement tokamak plasmas. The fast and accurate mode of the serial data acquisition is applied for the dynamic plasma diagnostics. The ADC samples triggered by the detector current are acquired independently for the measurement channels. The charges are calculated within the...Go to contribution page
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Dr Andrea Muraro (IFP-CNR)13/10/2015, 16:20ApplicationsPosterThe fast neutron GEM detectors (nGEM), i.e. GEM detectors equipped with a cathode that also serves as neutron-proton converter foil, represent a new frontier of beam monitor devices in the new fast neutron beam lines in the spallation sources experiments, such as ChipIR at ISIS, or in the future fusion experiments such as the ITER neutral beam injector. The GEM detectors are particularly...Go to contribution page
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Dr Emanuel Pollacco (IRFU/SPhN)13/10/2015, 16:20ApplicationsPosterEmanuel Pollacco, Denis Calvet, Anna Corsi, Frederic Château, Alain Delbart, Jean-Marc Gheller, Alain Gillibert, Alexadre Obertelli, Clementine Santamaria. IRFU, CEA Saclay , Gif-sur-Yvette, France Rui d’Oiviera, Bertrand Mehl. TD-DEM, CERN Antti Saastamoinen, Brian Roeder, Alexandra Spridon, Grigory Rogachev, Ethan Uberseder, Yevgen Koshchiy, Robert Tribble. Cyclotron...Go to contribution page
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Prof. João Veloso (University of Aveiro)13/10/2015, 16:20ApplicationsPosterCompton Cameras are being pointed as the instrument for far X and gamma-ray detection where the traditional Anger Cameras are inefficient. Moreover, these devices avoid the use of a heavy mechanical collimator responsible for a huge decrease of the photons that reach the Anger Camera crystal [1], [2]. Traditionally a Compton Camera is composed of solid state detectors (Si detector + Ge or NaI...Go to contribution page
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Mr Fabian Kuger (CERN / University of Würzburg (Germay))13/10/2015, 16:25MPGD Detector PhysicsPosterIn the MicroMegas detectors currently under construction for the ATLAS New Small Wheel (NSW) upgrade, the conversion region is limited to 5mm thickness. The number of primary ionization-clusters induced by a passing muon is about 10-15, with a few electrons each. The accuracy of the µTPC reconstruction method relies on the single cluster positions. Consequentially high electron losses during...Go to contribution page
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Mr Yunus KAYA (Uludag University)13/10/2015, 16:25MPGD Detector PhysicsPosterHow does water modify the surface conductivity of graphene? The hope is that the GEM lets electrons through but not ions. As a result, there would be no space charge due to ions drifting from their production point to the drift volume. Therefore, graphene can be use in GEM detectors. Graphene is an allotrope of carbon in the form of a two-dimensional, atomic-scale, hexagonal lattice in...Go to contribution page
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Dr Tadeusz Kowalski (AGH, University of Science and Technology, Krakow, Poland)13/10/2015, 16:25Simulation and SoftwarePosterThe ternary gas mixtures of Ne + CO2 + N2 is used in TPC, in the main tracking detector of ALICE at LHC accelerator. This mixture has a small diffusion constants, small thickness, reasonable value of electron drift velocity, small multiple scattering. A small addition of N2 increases the electron drift velocity and reduces the micro-sparking. In this mixtures, besides the direct ionization,...Go to contribution page
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Mr Yunus KAYA (Uludag University)13/10/2015, 16:25Simulation and SoftwarePosterIn recent decades, quantum chemistry calculations have been used for various chemical fields such as reaction pathway analysis and spectroscopic assignments due to the theoretical developments, especially accuracy improvement of functionals in density functional theory (DFT), and high-speed parallel computers. The kinetic studies of formation Xe+Xe cluster in Xe, Ar+Ar cluster in Ar, and...Go to contribution page
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Mr YALÇIN KALKAN (RD51)13/10/2015, 16:25Simulation and SoftwarePosterThe gain in nearly all MPGDs can be calculated with a precision around $20~\%$ - with the notable exception of GEMs. We know from systematic studies that the discrepancy (a factor of 2 in a standard GEM) can not be due solely to the modelling of the holes, to the accuracy of the ionisation cross section and to Penning effects. Surface charge increases the gain by $20~\%$ in a dry standard...Go to contribution page
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Prof. João Veloso (University of Aveiro)13/10/2015, 16:25MPGD Detector PhysicsPosterCsI photocathodes coupled to Gaseous Photomultipliers have long been used in experiments and applications due to their high gains, fast response and coverage of large areas of detection at reasonable costs [1, 2]. In the future, experiments based on rare event detection, namely Dark Matter [3, 4] and Double Beta Decay [5] research, are faced with the problem of the prohibitive costs of the use...Go to contribution page
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Dr Dimos Sampsonidis Sampsonidis (Aristotle University ofThessaloniki)13/10/2015, 16:25MPGD Detector PhysicsPosterResistive Micromegas (Micro MEsh Gaseous Structure) detectors have been chosen by the ATLAS collaboration at LHC for the high luminosity upgrade due to their capability to maintain full efficiency and high spatial resolution at high rates. Operation in the Inner Muon Station of the high-rapidity region, the so called New Small Wheel (NSW) requires also these performances to be maintened in...Go to contribution page
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Prof. Nayana Majumdar (Saha Institute of Nuclear Physics)13/10/2015, 16:30Simulation and SoftwarePosterOwing to the use of typical manufacturing techniques for microelectronics, the new genre of Micro-Pattern Gaseous Detectors (MPGDs) with high granularity and very small distances between the electrodes can offer high spatial and time resolutions and good counting rate capability. The requirement of fast collection of data in various applications of the MPGDs has necessitated a thorough...Go to contribution page
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Prof. Supratik Mukhopadhyay (Saha Institute of Nuclear Physics)13/10/2015, 16:30Simulation and SoftwarePosterA time projection chamber (TPC) is envisaged just beyond the vertex detector of the proposed linear collider. Because of the high flux environment, micro-pattern gaseous detectors (MPGD) have been proposed to build the end-plates of the TPC. Because of the large area coverage and their geometry, the end-plates are expected to be made of a number of MPGD modules. During experiments using the...Go to contribution page
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Dr Karol Malinowski (Institute of Plasma Physics and Laser Microfusion)13/10/2015, 16:30Simulation and SoftwarePosterStudies of Gas Electron Multiplier (GEM) detector are conducted at the IPPLM institute for several years. They aim to develop GEM detector to register the soft X-ray in tokamak experimental conditions. This paper presents the results of simulations of electron avalanches produced within the tested detector due to absorption of X-ray photon. In first step simulations involved the construction...Go to contribution page
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Mr Alfredo Castaneda Hernandez (Texas A&M University at Qatar)13/10/2015, 16:30Simulation and SoftwarePosterGarfield++ is a toolkit for the simulation of the particle detectors that use semi-conductors as sensitive medium. It takes enormous amount of time in the simulations of the complex scenarios such as those involving high detector voltages, gases with larger gains or electric field meshes with large number of elements. We observed that most of the simulation time is being consumed in finding...Go to contribution page
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Takao Kitaguchi (Hiroshima University)13/10/2015, 16:35ApplicationsPosterWe have developed a gaseous Time Projection Chamber (TPC) containing a single-layered foil of a Gas Electron Multiplier (GEM) to open up a new window on cosmic X-ray polarimetery. The GEM-TPC polarimeter works as a highly sensitive tracker for photoelectrons whose initial direction is sensitive to linear polarization of incident X-rays. The GEM foil is used to increase signal-to-noise ratio of...Go to contribution page
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Giuseppe De Robertis (BA)13/10/2015, 16:35ElectronicsPosterIn this work the MOSAIC (“MOdular System for Acquisition, Interface and Control”) board, designed for the readout and testing of the new pixel tracker modules of the ALICE experiment, is described. It is based on a large Artix7 Field Programmable Gate Array device by Xilinx and is compliant with the six unit “Versa Modular Eurocard” standard (6U-VME) for easy housing in a standard VMEbus...Go to contribution page
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Dr Waqar Ahmed (National Centre for Physics, Quaid-I-Azam Univ.)13/10/2015, 16:35ElectronicsPosterThe CMS Collaboration is planning to use triple GEM detectors as part of its muon system upgrade in order to enhance the muon tracking and triggering capabilities in the region of 1.5 < | eta |< 2.2. Triple-GEM detectors have been identified as a suitable technology to sustain the specific high radiation environment in that region. In CMS the triple-GEM detectors will be equipped with the...Go to contribution page
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Paul Colas (CEA/Irfu Saclay)13/10/2015, 16:35Material and Ageing TestsPosterThere are more and more applications of resistive coatings for MPGD anodes. They are used for spark suppression and damping in Large Area detectors and for charge spreading to improve the resolution in a TPC (with the suitable RC constant per unit area). Recently a new material, Diamond-Like Carbon has been tested as coating for Micromegas TPC modules. Performances of modules with this new...Go to contribution page
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Dr Michele Quinto (INFN, Sezione di Bari)13/10/2015, 16:35ElectronicsPosterThe TOTEM (TOTal cross section, Elastic scattering and diffraction dissociation Measurement at the LHC) experiment at LHC, has been designed to measure the total proton-proton cross-section with a luminosity independent method, based on the optical theorem, and study the elastic and diffractive scattering at the LHC energy. To cope with the increased intensity of the LHC run 2 phase,...Go to contribution page
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Dr Yi Zhou (China)13/10/2015, 16:40Production techniquesPosterGEM detectors have been successfully used in modern nuclear and high-energy physics experiments which demonstrates the maturity of the GEM detector technology in applications for high-rate experiments. The key to the GEM application at large-scale experiments is cost-effective realization of large-size detectors, in which development of GEM detector assembly techniques plays a key role. The...Go to contribution page
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Hugo Natal da Luz (Instituto de Fìsica, Universidade de São Paulo, Brasil)13/10/2015, 16:40ApplicationsPosterOne of the most relevant issues in neutron detection is the search for alternatives to Helium-3 as neutron converter. Its high absorption cross section for thermal neutrons used to make it the preferred absorber to build large area thermal neutron detectors. Its current unavailability triggered an intense research to find for alternatives, turning the attention of gaseous detectors developers...Go to contribution page
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Dr Timo Hildén (Helsinki Institute of Physics)13/10/2015, 16:40Production techniquesPosterAn optical Quality Assurance (QA) system has been developed at the Detector Laboratory of the Helsinki Institute of Physics. The size and shape of the holes in a Gas Electron Multiplier (GEM) -foil can be measured with the system. The system is used e.g. for the QA of the GEM foils of the TPC detectors being developed for the beam diagnostics system of the SuperFRS at future FAIR facility and...Go to contribution page
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Dr Qian Liu (UCAS, China)13/10/2015, 16:40Production techniquesPosterThinner-THGEM, which has 0.2mm thickness, 0.1mm~0.15mm hole diameter, 0.3mm pitch and 5~20um rim has been manufactured successfully. Two methods have been investigated for the manufacture: drilling and laser. The performance has been studied and it shows that 1.0X10^4 gain for one layer and 16% energy resolution for 55Fe source can be achieved. The spatial resolution of thinner-THGEM with 0.3...Go to contribution page
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Mr Lev Shekhtman (Budker INP)13/10/2015, 16:40MPGD Detector PhysicsPosterSpatial resolution of GEM based tracking detectors is simulated and measured. The simulation includes GEANT4 based transport of high energy electrons with careful accounting of atomic relaxation processes including emission of phluorescent photons and Auger electrons and custom post-processing, including accounting of diffusion, gas amplification fluctuations, distribution of signals on...Go to contribution page
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Mr Yuki Mitsuya (The University of Tokyo)13/10/2015, 16:40New Developments in MPDGsPosterThe glass gas electron multiplier, glass gem (G-GEM), is a GEM based detector which is composed of a photoetchable glass substrate (PEG3, HOYA Corporation, Japan). Its improved spark tolerance and mechanical stability provides better handling and simple detector setup. No outgassing from the substrate enables the long-term sealed operation of detectors. In this research we report on the...Go to contribution page
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Dr Luigi Benussi (LNF)13/10/2015, 16:45Production techniquesPosterWe present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of MPGD, with particular attention to the realisation of the largest triple GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 qm active area each, employing three GEM foils per chamber, to be...Go to contribution page
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Giovanna Saviano (LNF)13/10/2015, 16:45PosterModern gas detectors for the detection of elementary particles, and MPGDs in particular, require F-based gases for optimal performance. Recent regulations demand the use of environmentally unfriendly F-based gases to be limited or banned. This work investigates the properties of potential eco-friendly gas candidate replacements. The aim is to discuss some of the important properties of gases...Go to contribution page
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Saleh Muhammad (L)13/10/2015, 16:45Production techniquesPosterThe GE1/1 CMS project consists of 144 GEM chambers of about 0.5 qm active area each, based on the triple GEMs technology, to be installed in the very forward region of the CMS endcap during the long shutdown of LHC in 2108-2019. GE1/1 chambers will be operated for decades in harsh environment, and are expected to perform consistently providing good space and time resolution and excellent rate...Go to contribution page
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Mr Gergo Hamar (Wigner RCP, Budapest)13/10/2015, 16:45MPGD Detector PhysicsPosterNovel Cherenkov detector upgrades favour GEM and Thick-GEM based MPGD systems. These detectors have reduced ion backflow, fast signal formation, high gain, and could suppress the MIP signals as well. Their common drawbacks are the inefficiencies of photo-electron collection from the top of the TGEM and the local variation of multiplication due to the special geometry. The developed...Go to contribution page
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Dr Erik Brücken (Helsinki Institute of Physics)13/10/2015, 16:45Production techniquesPosterThe ALICE (A Large Ion Collider Experiment) experiment at the Large Hadron Collider (LHC) at CERN is dedicated to heavy ion physics to explore the structure of strongly interacting matter. The Time Projection Chamber (TPC) of ALICE is a tracking detector located in the central region of the experiment. It offers excellent tracking of charged particles and identification of those via dE/dx....Go to contribution page
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Dr Damien Neyret (CEA Saclay IRFU/SPhN)13/10/2015, 16:45Production techniquesPosterThe CEA Saclay/IRFU COMPASS group built a dozen of new Micromegas pixelized detectors in 2014-2015 for the new hybrid detector based tracking system (see the corresponding abstract). These Micromegas detectors were based on bulk boards produced by the ELVIA company at Coutances (France). The boards are large, 80x60 cm² with an active area of 40x40 cm², and require a very precise etching of the...Go to contribution page
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Renato Negrão (Instituto de Física, Universidade de São Paulo, Brasil)13/10/2015, 16:45Production techniquesPosterThick Gas Electron Multipliers (THGEMs) are based on the GEM microstructure, with thickness, pitch and hole diameter enlarged by a factor 10.The substrate is a common copper clad 0.5 mm thick FR4 or G10 board for printed circuits, with 0.5mm diameter holes mechanically drilled at a pitch of 1mm. Although it relies on a much simpler technological process to be fabricated, a precision of few...Go to contribution page
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