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Literatura académica sobre el tema "Resistive anode Micromegas"

Autor: Grafiati
Publicado: 14 de diciembre de 2024

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Artículos de revistas sobre el tema "Resistive anode Micromegas"

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Kuger, F. y 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 (julio de 2021): 165268. http://dx.doi.org/10.1016/j.nima.2021.165268.

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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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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 marzo de 2012): C03040. http://dx.doi.org/10.1088/1748-0221/7/03/c03040.

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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 (septiembre de 2012): 851–54. http://dx.doi.org/10.1088/1674-1137/36/9/010.

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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 mayo 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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7

Bayev, V., K. Afanaciev, S. Movchan, A. Kashchuk, O. Levitskaya y 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 junio 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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8

Feng, Jianxin, Zhiyong Zhang, Jianbei Liu, Ming Shao y 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 (mayo de 2022): 166595. http://dx.doi.org/10.1016/j.nima.2022.166595.

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Iengo, Paolo. "The industrial production of Micro Pattern Gaseous Detector: experience from the ATLAS Micromegas". Journal of Instrumentation 18, n.º 09 (1 de septiembre 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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10

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 (mayo de 2022): 166528. http://dx.doi.org/10.1016/j.nima.2022.166528.

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Tesis sobre el tema "Resistive anode Micromegas"

1

Wang, Wenxin. "Etude d’un grand détecteur TPC Micromegas pour l’ILC". Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112099/document.

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Une grande ‘Chambre à Projection Temporelle’ (TPC) est un candidat pour la détection et la mesure des traces chargées auprès de l’ILC, collisionneur linéaire d’électrons et de positons de 31 km permettant d’atteindre des énergies dans le centre de masse de 250 GeV à 1 TeV. Le travail de R&D décrit dans cette thèse porte sur un type nouveau de TPC, dont la lecture est assurée par des Micromégas à anode résistive. Ce dispositif permet de répartir le signal électrique sur plusieurs carreaux, même lorsque la charge est déposée sur un seul carreau. Il permet aussi de protéger l’électronique, ce qui est utilisé dans notre prototype pour miniaturiser les cartes de lecture. Dans ce travail, des modules Micromégas ont été testés et caractérisés, dans un premier temps, en faisceau, un par un au centre de la chambre, puis 7 modules montés en même temps de façon à couvrir la surface. Egalement, des tests sur un banc équipé d’une source de ⁵⁵Fe ont permis de caractériser les 7 modules utilisés. Une résolution en position de 60 microns par ligne de carreaux est obtenue à petite distance de dérive. L’uniformité est aussi évaluée, et des distorsions pouvant atteindre environ 500 microns sont observées. L’ensemble des résultats démontre l’adéquation de ce type de lecture à la TPC pour l’ILC. La fraction de retour des ions est également mesurée à l’aide d’un détecteur de même géométrie et avec le même gaz que ceux utilisés dans ces tests, et la loi en rapport inverse des champs est validée à nouveau dans ces conditions. La même technique est appliquée à la réalisation d’un imageur neutron, consistant en une TPC Micromégas ‘plate’ précédée d’un film convertisseur de 1mm d’épaisseur. Les protons éjectés par les neutrons sont ‘suivis à la trace’ dans le volume gazeux, ce qui permet de reconstruire avec une précision meilleure que le millimètre le point d’origine du neutron
The study of the fundamental building blocks of matter necessitates always more powerful accelerators. New particles are produced in high energy collisions of protons or electrons. The by-Products of these collisions are detected in large apparatus surrounding the interaction point. The 125 GeV Higgs particle discovered at LHC will be studied in detail in the next e⁺e⁻ collider. The leading project for this is called ILC. The team that I joined is working on the R&D for a Time Projection Chamber (TPC) to detect the charged tracks by the ionization they leave in a gas volume, optimised for use at ILC. This primary ionization is amplified by the so-Called Micromegas device, with a charge-Sharing anode made of a resistive-Capacitive coating. After a presentation of the physics motivation for the ILC and ILD detector, I will review the principle of operation of a TPC (Chapter 2) and underline the advantages of the Micromegas readout with charge sharing. The main part of this PhD work concerns the detailed study of up to 12 prototypes of various kinds. The modules and their readout electronics are described in Chapter 3. A test-Bench setup has been assembled at CERN (Chapter 4) to study the response to a ⁵⁵Fe source, allowing an energy calibration and a uniformity study. In Chapter 5, the ion backflow is studied using a bulk Micromegas and the gas gain is measured using a calibrated electronics chain. With the same setup, the electron transparency is measured as a function of the field ratio (drift/amplification). Also, several beam tests have been carried out at DESY with a 5 GeV electron beam in a 1 T superconducting magnet. These beam tests allowed the detailed study of the spatial resolution. In the final test, the endplate was equipped with seven modules, bringing sensitivity to misalignment and distortions. Such a study required software developments (Chapter 6) to make optimal use of the charge sharing and to reconstruct multiple tracks through several modules with a Kalman filter algorithm. The results of these studies are given in Chapter 7. The TPC technique has been applied to neutron imaging in collaboration with the University of Lanzhou. A test using a neutron source has been carried out in China. The results are reported in Chapter 8
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2

Joshi, Shivam. "Characterization of resistive Micromegas for High Angle-Time Projection Chambers readout and preparation of neutrino physics analysis with upgraded near detector of T2K experiment". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP123.

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Le travail de thèse se situe dans le domaine de la physique des neutrinos dans le cadre de l'expérience T2K. La thèse est divisée en deux sujets : la caractérisation des détecteurs et la préparation de l'analyse physique. Dans le contexte de la mise à niveau du détecteur proche de T2K - ND280, un modèle a été développé et utilisé pour caractériser la dispersion de charge dans le détecteur Micromegas résistif novateur (ERAM). De plus, le gain et la résolution énergétique de chaque ERAM ont été obtenus, pad par pad, pour une caractérisation complète. Les résultats ont directement conduit à la sélection d'ERAM spécifiques pour une installation à des positions spécifiques sur les plans d'anode des chambres à projection temporelle à grand angle. Au total, 37 ERAM ont été caractérisés avec succès en utilisant des données aux rayons X provenant d'un banc d'essai au CERN. Ces informations ont également été utilisées pour la reconstruction. L'amélioration des statistiques et de l'efficacité de détection des événements quasi-élastiques en courant chargé dans la région de haut Q² (transfert de moment à quatre dimensions) après la mise à niveau du ND280 a été étudiée. La question de savoir dans quelle mesure les incertitudes de haut Q² seront effectivement contraintes après la mise à niveau du ND280 par les 4 paramètres de haut Q² dans le modèle de section efficace neutrino-noyau a été abordée en utilisant les outils de re-pondération de T2K et le programme d'ajustement - GUNDAM. Une source importante des incertitudes de haut Q² est le modèle de facteur de forme axial-vecteur (dipolaire) actuellement utilisé dans le modèle de section efficace. Certains modèles alternatifs de facteur de forme qui peuvent mieux contraindre ces incertitudes ont également été étudiés. L'effet des incertitudes dans l'estimation de l'énergie de liaison des nucléons sur différentes variables (cinématique des muons, énergie des neutrinos, etc.) a été étudié. Des splines par bins ont été produites pour les 4 paramètres de l'énergie de liaison dans le modèle de section efficace dans le contexte de l'analyse des oscillations utilisant les données collectées en 2024
The PhD work is in the field of Neutrino Physics as a part of the T2K experiment. The thesis is divided into two subjects- detector characterization and preparation of physics analysis. In the context of the upgrade of T2K near detector- ND280, a model was developed and utilized to characterize the charge spreading in novel resistive Micromegas (ERAM) detector. In addition, pad-by-pad gain and energy resolution was obtained for each ERAM for a complete characterization. The results directly led to the selection of specific ERAMs for installation at specific positions in the High Angle-Time Projection Chamber anode planes for charge readout. In total, 37 ERAMs were successfully characterized using X-ray data from a test bench at CERN. This information was also used as inputs for reconstruction. Improvement in statistics and detection efficiency of charged-current quasi-elastic events in high Q² (4-momentum transfer) region after the ND280 upgrade was studied. The question of- how effectively the high Q² uncertainties will be constrained after the ND280 upgrade by the 4 high Q² parameters in the neutrino-nucleus cross-section model was addressed using T2K re-weighting tools and the ND280 fitter- GUNDAM. An important source of the high Q² uncertainties is the axial-vector form factor model (dipole) used currently in the cross-section model. Some alternative form factor models that can better constrain these uncertainties were also studied. The effect of uncertainties in nucleon removal energy estimation on different variables (muon kinematics, neutrino energy, etc.) was studied. Binned splines were produced for the 4 removal energy parameters in the cross-section model in the context of Oscillation Analysis using data collected in 2024
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3

Guillaume, Cauvin. "Study of MicroMegas detectors with resistive anodes for the muon reconstruction in ATLAS at HL-LHC". Thesis, KTH, Fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102178.

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Actas de conferencias sobre el tema "Resistive anode Micromegas"

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RuiRui Fan, Fengjie Hou, Shennan Fan, Futing Yi, Qun Ouyang, Yuanbo Chen y Tianchi Zhao. "Micromegas with resistive anode". En 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009). IEEE, 2009. http://dx.doi.org/10.1109/nssmic.2009.5402051.

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Desaunais, P., J. Jeanjean y V. Puill. "Performance of a new type of Micromegas detector with stainless steel woven wire mesh and resistive anode readout". En 2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515). IEEE, 2003. http://dx.doi.org/10.1109/nssmic.2003.1352122.

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Jeanneau, F., T. Alexopoulos, D. Attie, M. Boyer, J. Derre, G. Fanourakis, E. Ferrer-Ribas et al. "Performances and ageing study of resistive-anodes Micromegas detectors for HL-LHC environment". En 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154443.

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