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Artigos de revistas sobre o tema "Micromegas à anode résistive"

Autor: Grafiati

Publicado: 14 de dezembro de 2024

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1

Kuger, F., e P. Iengo. "Design, construction and quality control of resistive-Micromegas anode boards for the ATLAS experiment". EPJ Web of Conferences 174 (2018): 01013. http://dx.doi.org/10.1051/epjconf/201817401013.

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For the upcoming upgrade of the forward muon stations of the ATLAS detector, 1280m2 of Micromegas chambers have to be constructed. The industrialization of anode board production is an essential precondition. Design and construction methods of these boards have been optimized towards mass production. In parallel quality control procedures have been developed and established. The first set of large size Micromegas anode boards has finally been produced in industries and demonstrates the feasibility of the project on full-scale.

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2

Chefdeville, M., R. de Oliveira, C. Drancourt, N. Geffroy, T. Geralis, P. Gkountoumis, A. Kalamaris et al. "Development of Micromegas detectors with resistive anode pads". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1003 (julho de 2021): 165268. http://dx.doi.org/10.1016/j.nima.2021.165268.

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3

Manjarrés, J., T. Alexopoulos, D. Attié, M. Boyer, J. Derré, G. Fanourakis, E. Ferrer-Ribas et al. "Performances of Anode-resistive Micromegas for HL-LHC". EPJ Web of Conferences 28 (2012): 12071. http://dx.doi.org/10.1051/epjconf/20122812071.

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4

Manjarrés, J., T. Alexopoulos, D. Attié, M. Boyer, J. Derré, G. Fanourakis, E. Ferrer-Ribas et al. "Performances of anode-resistive Micromegas for HL-LHC". Journal of Instrumentation 7, n.º 03 (20 de março de 2012): C03040. http://dx.doi.org/10.1088/1748-0221/7/03/c03040.

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5

Cools, A., S. Aune, F. Beau, F. M. Brunbauer, T. Benoit, D. Desforge, E. Ferrer-Ribas et al. "X-ray imaging with Micromegas detectors with optical readout". Journal of Instrumentation 18, n.º 06 (1 de junho de 2023): C06019. http://dx.doi.org/10.1088/1748-0221/18/06/c06019.

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Abstract In the last years, optical readout of Micromegas gaseous detectors has been achieved by implementing a Micromegas detector on a glass anode coupled to a CMOS camera. Effective X-ray radiography was demonstrated using integrated imaging approach. High granularity values have been reached for low-energy X-rays from radioactive sources and X-ray generators. Detector characterization with X-ray radiography has led to two applications: neutron imaging for non-destructive examination of highly gamma-ray emitting objects and beta imaging for the single cell activity tagging in the field of oncology drug studies. First measurements investigating the achievable spatial resolution of the glass Micromegas detector at the SOLEIL synchrotron facility with a high-intensity and flat irradiation field will be shown in this article.

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6

Fan, Sheng-Nan, Rui-Rui Fan, Bo Wang, Hui-Rong Qi, Qun Ouyang, Fu-Ting Yi, Tian-Chi Zhao et al. "Study of a bulk-Micromegas with a resistive anode". Chinese Physics C 36, n.º 9 (setembro de 2012): 851–54. http://dx.doi.org/10.1088/1674-1137/36/9/010.

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7

Manthos, I., S. Aune, J. Bortfeldt, F. Brunbauer, C. David, D. Desforge, G. Fanourakis et al. "Precise timing and recent advancements with segmented anode PICOSEC Micromegas prototypes". Journal of Instrumentation 17, n.º 10 (1 de outubro de 2022): C10009. http://dx.doi.org/10.1088/1748-0221/17/10/c10009.

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Abstract Timing information in current and future accelerator facilities is important for resolving objects (particle tracks, showers, etc.) in extreme large particles multiplicities on the detection systems. The PICOSEC Micromegas detector has demonstrated the ability to time 150 GeV muons with a sub-25 ps precision. Driven by detailed simulation studies and a phenomenological model which describes stochastically the dynamics of the signal formation, new PICOSEC designs were developed that significantly improve the timing performance of the detector. PICOSEC prototypes with reduced drift gap size (∼119 µm) achieved a resolution of 45 ps in timing single photons in laser beam tests (in comparison to 76 ps of the standard PICOSEC detector). Towards large area detectors, multi-pad PICOSEC prototypes with segmented anodes has been developed and studied. Extensive tests in particle beams revealed that the multi-pad PICOSEC technology provides also very precise timing, even when the induced signal is shared among several neighbouring pads. Furthermore, new signal processing algorithms have been developed, which can be applied during data acquisition and provide real time, precise timing.

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8

Feng, Jianxin, Zhiyong Zhang, Jianbei Liu, Ming Shao e Yi Zhou. "A novel resistive anode using a germanium film for Micromegas detectors". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1031 (maio de 2022): 166595. http://dx.doi.org/10.1016/j.nima.2022.166595.

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9

Cools, A., S. Aune, F. M. Brunbauer, T. Benoit, A. Corsi, E. Ferrer-Ribas, F. J. Iguaz et al. "Neutron imaging with Micromegas detectors with optical readout". EPJ Web of Conferences 288 (2023): 07009. http://dx.doi.org/10.1051/epjconf/202328807009.

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Optical readout of Micromegas gaseous detectors has been achieved by implementing a Micromegas detector on a glass substrate with a glass anode and a CMOS camera. Efficient X-ray radio-graphy has been demonstrated due to the integrated imaging approach inherent to optical readout. High granularity values have been reached for low-energy X-rays from radioactive sources and X-ray generators taking advantage of image sensors with several megapixel resolution. Detector characterization under X-ray radiography opens the way to different applications from beta imaging to neutron radiography. Here we will focus on one application: neutron imaging for non-destructive examination of highly gamma-ray emitting objects. This article reports the characterization of the detectors when exposed to a low activity neutron source. The response of the detector to thermal neutrons has been studied with different field configurations and gap thicknesses.

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10

Scharenberg, L., F. Brunbauer, H. Danielsson, Z. Fang, K. J. Flöthner, F. Garcia, D. Janssens et al. "Characterisation of resistive MPGDs with 2D readout". Journal of Instrumentation 19, n.º 05 (1 de maio de 2024): P05053. http://dx.doi.org/10.1088/1748-0221/19/05/p05053.

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Abstract Micro-Pattern Gaseous Detectors (MPGDs) with resistive anode planes provide intrinsic discharge robustness while maintaining good spatial and time resolutions. Typically read out with 1D strips or pad structures, here the characterisation results of resistive anode plane MPGDs with 2D strip readout are presented. A µRWELL prototype is investigated in view of its use as a reference tracking detector in a future gaseous beam telescope. A MicroMegas prototype with a fine-pitch mesh (730 line-pairs-per-inch) is investigated, both for comparison and to profit from the better field uniformity and thus the ability to operate the detector more stable at high gains. Furthermore, the measurements are another application of the RD51 VMM3a/SRS electronics.

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11

VAN DER GRAAF, HARRY, TOM AARNINK, ARNO AARTS, NIELS VAN BAKEL, EDWARD BERBEE, AD BERKIEN, MARTIN VAN BEUZEKOM et al. "THE GRIDPIX DETECTOR: HISTORY AND PERSPECTIVE". Modern Physics Letters A 28, n.º 13 (30 de abril de 2013): 1340021. http://dx.doi.org/10.1142/s021773231340021x.

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In 2000, the requirements for a large TPC for experiments at a new linear collider were formulated. Both the GEM and Micromegas gas amplification systems had matured, such that they could be practically applied. With the Medipix chip, a pixel-segmented anode readout became possible, offering an unprecedented level of granularity and sensitivity. The single electron sensitive device is a digital detector capable to record and transfer all information of the primary ionization, provided that it can be made discharge proof.

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12

Kuger, F. "Production and quality control of Micromegas anode PCBs for the ATLAS NSW upgrade". Journal of Instrumentation 11, n.º 11 (11 de novembro de 2016): C11010. http://dx.doi.org/10.1088/1748-0221/11/11/c11010.

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13

Iengo, Paolo. "The industrial production of Micro Pattern Gaseous Detector: experience from the ATLAS Micromegas". Journal of Instrumentation 18, n.º 09 (1 de setembro de 2023): C09014. http://dx.doi.org/10.1088/1748-0221/18/09/c09014.

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Abstract Resistive Micromegas is one of the detector technologies chosen by ATLAS for the Phase-1 upgrade of the Muon Spectrometer, completed in 2022 in view of the LHC Run3 start. It is the largest MPGD-based detector system ever built, covering an active area of 1280 m2, providing trigger and precise tracking capabilities to the ATLAS Muon system and able to stand a radiation background rate up to 20 kHz/cm2. The heart of the ATLAS Micromegas detectors is the anode board, which carries the resistive protection layer, the readout electrodes and the insulating spacers supporting the micro-mesh. The production of the 2048 readout boards of size up to 0.5×2.2 m2 has been assigned to high-technology PCB industries and required dedicated efforts for technology transfer, production follow-up and quality assurance and control. The paper reviews the main challenges from the design phase to the completion of the project which spanned over several years. Emphasis is also put on the thorough quality assurance and quality control protocol established, the achieved results, as well as on the logistic, supply and schedule constraints. The lessons learned from this unprecedented MPGD project are also discussed.

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14

Davis, Marios, Maria Diakaki, Michael Kokkoris, Veatriki Michalopoulou-Petropoulou e Roza Vlastou. "Simulation of a MicroMegas detector for low-energy α-particle tracking using Garfield++". HNPS Advances in Nuclear Physics 28 (17 de outubro de 2022): 251–56. http://dx.doi.org/10.12681/hnps.3715.

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In the present work, the simulated detector was a MicroMegas gaseous one, regularly being used for neutron-induced fission studies at NCSR ‘Demokritos’. The initial code tests involved the linear response of the detector with respect to the energy deposition of 5 MeV α-particles. This study was carried out in two distinct steps: First, by collecting simulated data for the deposited charge in the anode electrode for different particle trajectories, as well as, for the same trajectory, but for different gas pressures, ranging between 0.8 and 1.2 atm and then by comparing them with the corresponding results obtained using SRIM2008 regarding the α-particle energy losses inside the detector, with the same set of parameters. Finally, a simulated spectrum of 5 MeV α-particles, having trajectories randomly distributed within the whole detector volume, was obtained using Garfield++ and was compared to an experimental one. The similarities and discrepancies observed are discussed and analyzed.

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15

Bayev, V., K. Afanaciev, S. Movchan, A. Kashchuk, O. Levitskaya e V. Akulich. "Effect of multiple discharges on accumulated damage to the DLC anode layer of a resistive Well Electron Multiplier". Journal of Instrumentation 18, n.º 06 (1 de junho de 2023): C06004. http://dx.doi.org/10.1088/1748-0221/18/06/c06004.

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Abstract A prototype of the WEM (Well Electron Multiplier) detector with an active area of 10 × 10 mm2 and a resistive DLC anode was tested in terms of robustness to electrical discharges induced by highly ionizing particles (241Am alpha source). The perforated structure of the WEM detector was produced from a 500 μm thick FR4 with drilled holes of 200 μm in diameter and 500 μm in pitch. The resistive anode was made of 100 nm thick DLC layer with 30 MOhm/square sheet resistance deposited on the anode grid electrode. The anode grid electrode is used to distribute voltage to the resistive layer and provide fast charge evacuation. The detector was operated in Ar:CO2 (90:10) gas mixture at gas gain of 3,500. The alpha source was placed in the drift gap. The WEM detector with intrinsic capacitance of 34 pF did not show visible damage and changes in performance after 1 million accumulated discharges. To simulate a large area detector, we added a capacitance up to 1 nF in parallel with the test device. The results of the experiments with an additional capacitance revealed that a small WEM prototype can't be directly scaled to the dimensions more than 60 × 60 mm2 without losing the robustness to discharges. We assume that the observed damage could be caused by the design features of the prototype. The grid anode electrode with a thickness of 35 μm results in a gap between the perforated FR4 board and the resistive anode board. Simulations of the electric field distribution with Comsol Multiphysics software revealed a significant electric field strength in this gap. This could lead to electric discharge path bypassing the protective resistive DLC layer. A possible solution to this problem could be additional insulation of the anode grid electrode with a coverlay similar to that used in bulk MicroMegas production.

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16

Aphecetche, L., H. Delagrange, D. G. D'Enterria, M. Le Guay, X. Li, G. Martı́nez, M. J. Mora, P. Pichot, D. Roy e Y. Schutz. "Two large-area anode-pad MICROMEGAS chambers as the basic elements of a pre-shower detector". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 459, n.º 3 (março de 2001): 502–12. http://dx.doi.org/10.1016/s0168-9002(00)01044-5.

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17

Agarwala, J., M. Alexeev, C. D. R. Azevedo, F. Bradamante, A. Bressan, M. Büchele, C. Chatterjee et al. "The COMPASS RICH-1 MPGD based photon detector performance". Journal of Physics: Conference Series 2374, n.º 1 (1 de novembro de 2022): 012126. http://dx.doi.org/10.1088/1742-6596/2374/1/012126.

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In 2016 we have upgraded the COMPASS RICH by novel gaseous photon detectors based on MPGD technology. Four new photon detectors, covering a total active area of 1.5 m 2, have been installed in order to cope with the challenging efficiency and stability requirements of the COMPASS physics programme. The new detector architecture consists in a hybrid MPGD combination: two layers of THGEMs, the first of which also acts as a reflective photocathode thanks to CsI coating, are coupled to a bulk Micromegas on a pad-segmented anode. These detectors are the first application in an experiment of MPGD-based single photon detectors. Presently, we are further developing the MPGD-based PDs to make them adequate for a setup at the future EIC collider. All aspects of the COMPASS RICH-1 Photon Detectors upgrade are presented: R&D, engineering, mass production, QA and performance; the on-going development for collider application is also presented.

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18

COLAS, P., A. COLIJN, A. FORNAINI, Y. GIOMATARIS, H. VANDERGRAAF, E. HEIJNE, X. LLOPART, J. SCHMITZ, J. TIMMERMANS e J. VISSCHERS. "The readout of a GEM or Micromegas-equipped TPC by means of the Medipix2 CMOS sensor as direct anode". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 535, n.º 1-2 (11 de dezembro de 2004): 506–10. http://dx.doi.org/10.1016/s0168-9002(04)01717-6.

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19

Bayev, V. G., K. G. Afanaciev, S. A. Movchan, A. Gongadze, V. V. Akulich, A. O. Kolesnikov, N. Koviazina et al. "Improving the robustness of Micromegas detector with resistive DLC anode for the upgrade of the TPC readout chambers of the MPD experiment at the NICA collider". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1031 (maio de 2022): 166528. http://dx.doi.org/10.1016/j.nima.2022.166528.

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20

Attié, David. "Encapsulated resistive anode bulk Micromegas detectors for the T2K experiment TPC upgrade". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, novembro de 2022, 167582. http://dx.doi.org/10.1016/j.nima.2022.167582.

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