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Micro Pattern Gas Detectors 2022

11–16 Dec 2022
Asia/Jerusalem timezone

Contribution List

107 out of 107 displayed
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  1. 1. Welcome remarks
    Shikma Bressler (Weizmann Institute of Science (IL))
    12/12/2022, 09:30
  2. 2. Invited talk: Detector R&D road map
    Silvia Dalla Torre (Universita e INFN Trieste (IT))
    12/12/2022, 09:40
  3. 15. TPOT : Micromegas detectors to reconstruct distortions of the sPHENIX TPC
    Maxence Vandenbroucke (Université Paris-Saclay (FR))
    12/12/2022, 10:10

    The sPHENIX detector is being constructed at the Relativistic Heavy Ion Collider (RHIC) at the Brookhaven National Laboratory in the USA. It will be commissioned for data taking in 2023. It will focus on measuring jets as well as open and hidden heavy flavor production in heavy ion collisions to study the properties of the Quark Gluon Plasma. The tracking of the sPHENIX apparatus is...

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  4. 16. Development of Large Area µRWELL Detectors for CLAS12 High Luminosity Upgrade at Jefferson Lab
    Kondo Gnanvo (University of Virginia (US))
    12/12/2022, 10:30

    The high-luminosity upgrade of the CEBAF Large Acceptance Spectrometer (CLAS12) will significantly enhance the physics reach of experiments in Hall B at JLab. However, at the current luminosity of L = 1 × 1035 cm-2 s-1, the reconstruction efficiency of charged particles in the forward region of the CEBAF Large Acceptance Spectrometer (CLAS12) is at the level of 85% and limited in part by the...

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  5. 17. The CLAS12 Barrel Micromegas Tracker: five years and counting of data taking
    Francesco Bossu (Université Paris-Saclay (FR))
    12/12/2022, 10:50

    In the central detector of the CLAS12 experiment at Jefferson Lab, the Barrel Micromegas Tracker (BMT) consists of six layers of low mass cylindrical resistive Micromegas tiles. The BMT surrounds three layers of silicon strip detectors to form the Central Vertex Tracker. The Micromegas tiles sit in a 5 T solenoid magnetic field, with the drift electric field orthogonal to the magnetic field,...

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  6. 18. Development and production of low background and high energy resolution Micromegas detectors using the thermal bonding method for the PandaX-III experiment
    Mr Yunzhi Peng (University of Science and Technology of China)
    12/12/2022, 11:10

    High pressure xenon time projection chamber (TPC) is an important detector technology to search neutrino-less double beta decays. The neutrino-less double beta decay search experiment of PandaX-III at the China Jinping Underground Laboratory uses a 10 bar 136Xe TPC with a readout plane consisting of 52 200×200 mm Micromegas detectors for high granularity, good energy resolution and a...

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  7. 12. Ready foLHC Run III - The ATLAS New Small Wheel and the MicroMegas chambers performances
    Giada Mancini (INFN e Laboratori Nazionali di Frascati (IT))
    12/12/2022, 12:00

    The two New Small Wheels (NSW) for the upgrade of the Atlas Muon Spectrometer are now installed in the experiment and ready to collect data in LHC Run III, started in July 2022. The NSW is the largest phase-1 upgrade project of ATLAS. Its challenging completion and readiness for data taking is a remarkable achievement of the Collaboration. The two wheels (10 meters in diameter) replace the...

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  8. 13. GEM Detectors for the CMS Endcap Muon System: status of three new detector stations
    Piet Verwilligen (Universita e INFN, Bari (IT))
    12/12/2022, 12:20

    In view of the LHC Phase-2, the CMS experiment is being upgraded with three stations of triple-GEM detectors (GE1/1, GE2/1 and ME0) to maintain the excellent trigger pT resolution of its muon spectrometer in the high-luminosity LHC environment and extending its coverage to the very-forward pseudorapidity region 2.4<|η|<2.8. The challenges faced for adapting the triple-GEM technology to a...

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  9. 14. Gain Calibration of the Upgraded ALICE TPC
    Philip Hauer (University of Bonn (DE))
    12/12/2022, 12:40

    A large Time Projection Chamber (TPC) is the main tracking and particle identification device of the ALICE experiment at the Large Hadron Collider (LHC) at CERN. In order to cope with the foreseen Pb-Pb interaction rate of 50 kHz in the Run 3 of the LHC, the MWPC-based readout chambers of the ALICE TPC were replaced by a GEM-based amplification stage. Combined with the new front-end...

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  10. 4. Invited talk: MPGD at the HL-LHC era
    Eraldo Oliveri (CERN)
    12/12/2022, 14:30
  11. 3. The MIGDAL Experiment
    Tim Marley
    12/12/2022, 15:00

    Direct dark matter experiments exploit the Migdal effect to extend their sensitivity to low-mass WIMPs, yet the Migdal effect itself has not yet been observed to occur in nuclear scattering. The MIGDAL experiment aims to directly observe this effect in a low-pressure optical time projection chamber exposed to an intense beam of fast neutrons from DD and DT generators. The experiment uses an...

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  12. 19. Commissioning of a hadron blind detector for dielectron measurement in pA reactions at J-PARC
    Dr Koki Kanno (RIKEN)
    12/12/2022, 15:20

    The J-PARC E16 experiment measures mass spectra of low-mass vector mesons, ρ, ω, and φ, in a nucleus using p + A → ρ/ω/φ + X reactions at the J-PARC high-momentum beamline. The invariant mass of vector mesons is reconstructed with the e+e− decay. The branching ratio of e+e− decay is very low and a thin target of 0.5% radiation length must be used to reduce dielectrons from gamma conversion...

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  13. 20. Operation and readout of the CGEM Inner Tracker
    Riccardo Farinelli (Universita e INFN, Ferrara (IT))
    12/12/2022, 15:40

    A recently approved ten-year extension of the BESIII experiment (IHEP, Beijing) motivated an upgrade program for both the accelerator and the detector. In particular, the current inner drift chamber is suffering from aging and the proposal is to replace it with a detector based on the cylindrical GEM technology. The CGEM inner tracker consists of three coaxial layers of triple GEM. The tracker...

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  14. 21. Performance of the large-area micro-RWELL detectors.
    Lev Shekhtman (Budker Institute of Nuclear Physics (RU))
    12/12/2022, 16:00

    Large-area coordinate detectors based on micro-resistive WELL (muRWELL) technology are under development for the CMD-3 detector at the VEPP-2000 collider at Budker INP. The CMD-3 is general purpose detector that is intended to measure parameters of light vector mesons and their excited states with accuracy better than 1% and study dynamics of multihadron production. In order to increase...

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  15. 64. Development of TPC prototype integrated with UV laser tracks for CEPC
    Huirong Qi (IHEP)
    12/12/2022, 16:20
  16. 22. The FTD facility at Bonn
    Markus Ball (University of Bonn (DE))
    12/12/2022, 17:10
  17. 24. The Micro Pattern Technologies laboratory at CERN
    Rui De Oliveira (CERN)
    12/12/2022, 17:30
  18. 23. The Mexico laboratory at Weizmann
    Meir Shoa (Weizmann Institute of Science (IL))
    12/12/2022, 17:50
  19. 5. RD51 MB
    12/12/2022, 18:30
  20. 25. GridPixes and their Applications
    Jochen Kaminski (University of Bonn (DE))
    13/12/2022, 09:30

    A GridPix detector is made of a highly pixelized readout ASIC combined with a Micromegas as a gas amplification stage. The later one is realized by photolithographic postprocessing, which allows for a high precision and good alignment of each Micromegas hole with a readout pixel. Because of this arrangement, the charge signal of a primary electron can be detected separately leading to an...

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  21. 26. The state of art of the µRWELL technology
    Marco Poli Lener (INFN e Laboratori Nazionali di Frascati (IT))
    13/12/2022, 09:50

    Micro-Pattern Gaseous Detectors (MPGD) are the primary choice for the instrumentation of large area apparatus, with high detection efficiency in harsh environment, suitable for muon triggering and tracking at present and future accelerator facilities. They can indeed provide a precise standalone momentum measurement in combination with an inner tracking system. With the addition of a precise...

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  22. 27. Proportional Counter array (PCa) - a new MPGD structure
    Mr Tian Xiangqi (University of Science and Technology of China)
    13/12/2022, 10:10

    Many novel structures of the micro-pattern gaseous detector (MPGD) have been developed to adapt to different application needs since the advent of the MPGD technology. In this report we present a new MPGD structure and its preliminary test results. The new structure consists of an array of grooves, with an anode micro-strip placed at the bottom of each groove, and metal plated on the...

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  23. 6. Invited talk: Gas detectors other than MPGD
    Emilio Radicioni (Universita e INFN, Bari (IT))
    13/12/2022, 10:30
  24. 31. Third generation Nuclear Physics instruments with MPGD gas technology
    Emanuel Pollacco (CEA)
    13/12/2022, 11:30

    Spectroscopy of nuclei far from stability and astrophysics studies are of major interests in a number of nuclear physics laboratories. In view of limiting beam intensities and the low energy multi-particle emission, (examples: n+12C = 3a (Ref 1), 14N(paaa) Ref 2 or 20Mg(βpα) Ref 3), the instrumentation calls for gas detection medium with a 4p solid angular cover and precise tracking...

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  25. 32. Status and Future Developments of Micro-pattern Gas Detectors for low-energy nuclear physics applications at FRIB
    Dr Marco Cortesi (Facility for Rare Isotope Beams)
    13/12/2022, 11:50

    Rare isotope (RI) beam facilities are now important tools for nuclear physics. The Facility for Rare Isotope Beams (FRIB), located on the campus of the Michigan State University, is a new world-leading user facility for the study of RIs using the in-flight fragmentation method. The unprecedented potential discovery of a modern rare isotope beam facility, such as FRIB, can only be realized by...

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  26. 33. TMM: A Triple Micro-Mesh gaseous structure with ultra-low ion backflow for gaseous photon detectors sensitive to visible light
    Kunyu Liang (University of Science and Technology of China (CN))
    13/12/2022, 12:10

    Gas photomultiplier tubes (gas-PMT) for visible light detection using micro-pattern gas detectors have been widely studied owing to their potential advantages, such as large detection area with low cost, high spatial and time resolutions, and resistance to magnetic field. But photocathodes sensitive to visible light exhibit a significant aging effect when subjected to excessive ions...

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  27. 34. A large area 100 channel PICOSEC Micromegas detector with sub 20 ps time resolution
    Antonija Utrobicic (Rudjer Boskovic Institute (HR))
    13/12/2022, 12:30

    The PICOSEC Micromegas precise timing detector is based on a Cherenkov radiator coupled to a semi-transparent photocathode and a Micromegas amplification structure. The first proof of concept single-channel small area prototype was able to achieve time resolution below 25 ps. One of the crucial aspects in the development of the precise timing gaseous detectors applicable in high-energy physics...

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  28. 35. Towards robust PICOSEC Micromegas precise timing detectors
    Ms Marta Lisowska (European Organization for Nuclear Research (CERN))
    13/12/2022, 12:50

    The PICOSEC Micromegas detector is a precise timing gaseous detector based on a Cherenkov radiator coupled to a semi-transparent photocathode and a Micromegas amplifying structure. First single-pad prototypes, equipped with a non-resistive Micromegas and a Cesium Iodide (CsI) photocathode, demonstrated a time resolution below 𝜎 = 25 ps. However, to make the concept appropriate to physics...

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  29. 28. Would MPGDs revolutionize noble-liquid detectors?
    Amos Breskin (Weizmann Institute of Science (IL))
    13/12/2022, 14:30

    Some novel ideas of ionization-electron and scintillation-photon sensing concepts in single-phase noble-liquid detectors are presented. They rely on immersed micro-structured electrodes, including ones undercoated with VUV photocathodes. Both, radiation-induced electrons from the liquid and primary-scintillation photoelectrons emitted by the photocathode are collected on thin anode strips or...

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  30. 29. A novel concept for dual-phase noble liquid detectors ? Floating Hole Multiplier
    Vitali Tchepel (Universidade de Coimbra (PT))
    13/12/2022, 14:50

    We describe a novel concept for dual-phase noble liquid detectors, the Floating Hole Multiplier (FHM). It consists of a perforated electrode freely floating on the surface of the liquid. The concept has been validated with a Thick Gas Electron Multiplier (THGEM) on the surface of liquid xenon. First experimental results will be reported showing that the electrons, liberated in liquid xenon due...

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  31. 30. The MPGD-based bubble-free Liquid Hole-Multiplier concept for charge and light detection in dual-phase noble-liquid TPCs
    Arindam Roy (Ben Gurion University)
    13/12/2022, 15:10

    The Bubble-free Liquid Hole-Multiplier (Bf-LHM) concept has been proposed for the simultaneous detection of scintillation-photons and ionization electrons, in dual-phase noble-liquid detectors. In a simpler version of the Bubble-assisted Liquid Hole-Multiplier (Ba-LHM), the gas bubble trapped under a perforated electrode is replaced by a liquid-to-vapor interface located between two...

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  32. 7. Invited talk: Women in physics: Bound by the ropes of motherhood expectations and the gendered labor market
    Dr Meytal Eran Jona (Weizmann Institute of Science)
    13/12/2022, 15:30
  33. 66. RD51 CB - Opened session - please join
    13/12/2022, 16:00
  34. 67. Avalanche Gain and Its Effect on Energy Resolution in GEM-based Detectors
    Tom Thorpe
    13/12/2022, 16:30
  35. 68. Soft X-ray Performance Studies of GEM Detectors with Reduced Copper Content
    Bartosz Mindur (AGH University of Science and Technology)
    13/12/2022, 16:33
  36. 69. Development and test of the Micromegas detector prototype and its readout electronics for the AMBER experiment at CERN
    Chiara Alice
    13/12/2022, 16:36
  37. 70. Puzzling time properties of electroluminescence in two-phase argon detector with THGEM readout
    Ekaterina Borisova
    13/12/2022, 16:39
  38. 71. Status of the construction of an experiment for the measurement of angular correlation between light charged particles
    Hugo Natal Da Luz (Czech Technical University in Prague)
    13/12/2022, 16:42
  39. 72. Algebraic methods for reconstruction of coordinates in strip detectors
    Igor Smirnov (NRC Kurchatov Institute PNPI (RU))
    13/12/2022, 16:45
  40. 73. Production and characterization of random electrode sectorization in GEM foils
    Michele Bianco (CERN)
    13/12/2022, 16:48
  41. 74. GADGET - a Gaseous Detector with Germanium Tagging
    Moshe Friedman (The Hebrew University of Jerusalem)
    13/12/2022, 16:51
  42. 75. Accelerated longevity test of Resistive Micromegas detectors operated with and without small amount of hydrocarbons.
    13/12/2022, 16:54
  43. 76. Reconstruction and trigger performance studies of Micromegas detectors for the ATLAS New Small Wheel project
    13/12/2022, 16:57
  44. 77. Configuration and Calibration of the Front-End Electronics of the ATLAS New Small Wheel Micromegas Detectors
    13/12/2022, 17:00
  45. 78. uRANIA: a micro-Resistive WELL for neutron detection
    Riccardo Farinelli (Universita e INFN, Ferrara (IT))
    13/12/2022, 17:03
  46. 79. The high voltage system the novel MPGD-based photon detectors of COMPASS RICH-1 and its development towards a scalable HVPSS for MPGDs
    Dr Stefano Levorato (INFN Trieste (IT) and CERN)
    13/12/2022, 17:06
  47. 80. Intelligent analysis of element distribution maps acquired with a full-field XRF imaging spectrometer
    Tomasz Andrzej Fiutowski (AGH University of Science and Technology (PL))
    13/12/2022, 17:09
  48. 81. Cluster Ions in Ne-CO2 gas mixture
    Dr Yalcin Kalkan (Muş Alparslan University (TR))
    13/12/2022, 17:12
  49. 82. A new gaseous UV detector design
    Dr Yalcin Kalkan (Muş Alparslan University (TR))
    13/12/2022, 17:15
  50. 83. Research on fast grounding simulation method for the MPGD with resistive layer
    Zhujun Fang
    13/12/2022, 17:18
  51. 84. A KiCad toolbox for particle detector design
    Aude Marie Grabas (Université Paris-Saclay (FR))
    13/12/2022, 17:21
  52. 85. New Resistive Materials for cryogenic operation of particle detectors
    Olano Vegas-Galician
    13/12/2022, 17:24
  53. 86. Development of a Multi-layer Boron-coated GEM detector for slow neutron detection at spallation sources
    Stephanie Cancelli (Milano-Bicocca University)
    13/12/2022, 17:27
  54. 87. New technique of ion identification in Accelerator Mass Spectrometry using low-pressure TPC with GEM readout
    Tamara Shakirova (Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences (BINP SB RAS))
    13/12/2022, 17:30
  55. 88. Missing data reconstruction using CNN in the gaseous TPC PandaX-III experiment
    Andrii Lobasenko (CEA-Saclay/IRFU/DPhN)
    13/12/2022, 17:33
  56. 89. Preliminary analyses of X-Rays from vacuum discharges during HV conditioning experiments at HVPTF with a GEM detector
    Federico Caruggi
    13/12/2022, 17:36
  57. 90. Electroluminescence in He/CF4 and hydrocarbons gas mixtures for directional dark matter searches with the CYGNO Optical Time Projection Chamber
    Fernando Amaro (LIBPys - Coimbra University)
    13/12/2022, 17:39
  58. 91. The SAMPA-SRS integrated readout for radiation gaseous detectors.
    Mr Geovane Grossi Araujo de Souza
    13/12/2022, 17:42
  59. 92. Studying the impact of humidity on the performance of MPGDs
    Henrik Fribert
    13/12/2022, 17:45
  60. 93. The novel XYU-GEM for ambiguity reduced tracking
    Karl Jonathan Floethner (University of Bonn (DE))
    13/12/2022, 17:48
  61. 94. Effect of Multiple Discharges on Accumulated Damage to the DLC Anode Layer of a Resistive Well Electron Multiplier
    Konstantin Afanaciev (NC PHEP BSU)
    13/12/2022, 17:51
  62. 95. HYDRA-TPC with a hybrid GEM-Micromegas detector
    Liancheng Ji (Technische Universität Darmstadt)
    13/12/2022, 17:54
  63. 96. A Segmental 2D readout board for GEM detectors
    Michał Babij (TTA Techtra)
    13/12/2022, 17:57
  64. 97. Development of miniaturized circuit boards for GEM detectors onboard the CubeSat X-ray observatory NinjaSat
    Naoyuki Ota
    13/12/2022, 18:00
  65. 98. Primary Scintillation in Argon-CF4 mixtures
    Pablo Amedo Martinez (Universidade de Santiago de Compostela (ES))
    13/12/2022, 18:03
  66. 99. Investigation of the uniformity in performance of a single mask triple GEM chamber
    Mr Sayak Chatterjee (Bose Institute (Kolkata)), Sayak Chatterjee
    13/12/2022, 18:06
  67. 100. Performance study of novel micro-Resistive WELL (uRWELL) detector in different gas mixtures and geometries
    Soham Chakraborty (University of York)
    13/12/2022, 18:09
  68. 101. Spark detection at sPHENIX TPC
    Tamás Majoros (University of Debrecen)
    13/12/2022, 18:12
  69. 102. Detectors and electronics for high precision measurements of thermal neutrons
    Thomas Block
    13/12/2022, 18:15
  70. 103. DLC Surfaces for Photon Detection with THGEMs
    Thomas Klemenz (Technische Universitaet Muenchen (DE))
    13/12/2022, 18:18
  71. 104. Discharge Consortium in quest for Spark-Less-Avalanche-Microstructures
    Tobias Yannick Waldmann (Technische Universitaet Muenchen (DE))
    13/12/2022, 18:21
  72. 105. Gas selection for Xe-based LCP-GEM detectors onboard the CubeSat X-ray observatory NinjaSat
    Tomoshi Takeda
    13/12/2022, 18:24
  73. 106. Further optimization studies of Resistive Plate WELL detector
    Darina Zavazieva
    13/12/2022, 18:27
  74. 107. Fabrication, characterization and charging up studies of THick Gas Electron Multipliers
    Nayana Majumdar (Saha Institute of Nuclear Physics (IN))
    13/12/2022, 18:30
  75. 8. RD51 CB - Closed session
    13/12/2022, 20:30
  76. 36. Development of DLC-RPC for Radiative Decay Counter of MEG II Experiment
    Atsuhiko Ochi (Kobe University (JP))
    14/12/2022, 09:00

    The RPC with very thin material budget using MPGD technology has been developed for MEG- II experiment; muon to positron + gamma rare decay experiment. To improve the background rejection, low energy (< a few MeV) positrons coming from radiative decay should be detected under intense muon beam (around 4 x 106 muons per unit cm2) penetrating in the detector. Very small material budget (<0.001 x...

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  77. 37. The surface Resistive Plate Counter (sRPC): an MPGD technology based RPC
    Matteo Giovannetti (INFN e Laboratori Nazionali di Frascati (IT))
    14/12/2022, 09:20

    The Surface Resistive Plate Counter (sRPC) is a novel RPC based on surface resistivity electrodes, a completely different concept with respect to traditional RPCs that use electrodes characterized by volume resistivity. The electrodes of the sRPC exploit the well-established industrial Diamond-Like-Carbon (DLC) sputtering technology on thin (50μm) polyimide foils, already introduced in the...

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  78. 38. Studying signals in particle detectors with resistive elements such as the 2D resistive-strip bulk Micromegas.
    Djunes Janssens (Vrije Universiteit Brussel (BE))
    14/12/2022, 09:40

    The uninterrupted advancements of modelling and simulation tools, such as Garfield++, has guided the widespread development and understanding of particle detector technologies. Since novel detector structures are proposed regularly, with resistive detectors becoming an ever-increasing fraction of these, it is vital to reflect this progress in the capabilities of the modelling tools. This talk...

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  79. 39. Design, production and performances of the Encapsulated Resistive Anode Micromegas detectors for the readout of the High-Angle TPCs of the upgrade of the T2K Near Detector
    Alain Delbart (Université Paris-Saclay (FR))
    14/12/2022, 10:00

    The long baseline neutrino experiment T2K will upgrade its near detector (ND280) next year to reduce the systematic uncertainty to less than 4% by adding an active highly segmented neutrino target (Super Fine Grained Detector) surrounded by two new gaseous Time Projection Chambers (High-Angle TPCs) and a 4p TOF veto. The required performances of these TPCs for momentum measurement and particle...

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  80. 40. A neutron detector with RWELL in 3He-CF4 gas mixtures
    Davide Raspino (STFC)
    14/12/2022, 10:20

    The MSGC was the earliest MPGD and the only type found able to operate in 3He-CF4 gas mixtures with a CF4 partial pressure of several atmospheres. This was until our work on the μRWELL, the most recently developed MPGD. Our investigations were the first to test 3He as a neutron converter with the μRWELL and we found we could safely use at least six bar of CF4. Despite the 3He shortage,...

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  81. 41. Cryogenic RWELL: high gain with quenched discharges
    Andrea Tesi (Weizmann Institute of Science (IL))
    14/12/2022, 10:40

    "Large volume Liquid Argon (LAr) Time Projection Chambers (TPC) are the technology of choice to study the elusive nature of neutrinos and to search for dark matter (DM) particles. Within the volume of noble liquid, neutrino or DM interactions produce prompt scintillation light and ionization electrons. The former is readout using UV light sensors while the latter are drifted under the...

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  82. 9. Invited talk: Development of wafer-scale, monolithic CMOS pixel sensors for particle detection
    Magnus Mager (CERN)
    14/12/2022, 11:30
  83. 42. The industrial production of Micro Pattern Gaseous Detector: experience from the ATLAS Micromegas
    Paolo Iengo (CERN)
    15/12/2022, 09:30

    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 m^2, providing trigger and precise tracking capabilities to the ATLAS Muon system and able to stand a radiation background rate...

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  84. 43. Integration of CVD graphene in Gaseous Electron Multipliers for high energy physics experiments
    Giorgio Orlandini (Friedrich Alexander Univ. Erlangen (DE))
    15/12/2022, 09:50

    To enhance the performance of micro-patterned gaseous detectors (MPGDs) to meet the challenging requirements of future HEP experiments, 2D materials are attractive candidates to address the backflow of positive ions (ion backflow, IBF), which affects detector performance by distorting electric field lines. A single or few layers of graphene are promising to...

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  85. 44. Progress on coupling MPGD-based photon detectors with nanodiamond photocathodes A Bari-Trieste Collaboration
    Mr Chandradoy Chatterjee (INFN Trieste (IT))
    15/12/2022, 10:10

    Hydrogenated nonodiamond grains represent an alternative to CsI for detection of single VUV photons in gaseous detectors. A dedicated R&D study on of nanodiamond photocathodes coupled to THGEM-based photon detectors is ongoing. The first phase of these studies includes the comparison of QE in vacuum and in gaseous atmospheres and measurement of aging effects under irradiation and exposure to...

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  86. 45. Transmission through Graphene of Electrons in the 30 - 900 eV Range
    Alice Apponi (Università Roma Tre)
    15/12/2022, 10:30

    The study of 2D materials, and in particular their interaction with low-energy electrons, is of great interest in surface physics, as well as in several applications ranging from the development of electronic devices to novel detectors for particle physics. The concept of graphene as a pressure-tight membrane transparent to electrons can be employed for the upgrade of MPGD detectors, like...

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  87. 46. New (TH)GEM coating materials characterised using spectroscopy methods
    Thomas Klemenz (Technische Universitaet Muenchen (DE))
    15/12/2022, 10:50

    Gas Electron Multiplier (GEM) has become a widely employed technology in modern particle and nuclear physics experiments. Despite great advancements in their construction and performance, the formation of electrical discharges remains one of the major factors limiting the long-term stable operation of GEM detectors and it is crucial to develop methods to mitigate them. In this work GEM...

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  88. 10. Invited talk: Nanophotonic particle detectors: how quantum optics can contribute to scintillators and Cherenkov detectors
    Ido Kaminer
    15/12/2022, 11:40
  89. 47. Optical negative ion drift operation at nearly atmospheric pressure
    Elisabetta Baracchini (Gran Sasso Science Institute)
    15/12/2022, 12:10

    We are going to present for the first time Negative Ion Drift (NID) operation in He:CF4:SF6 at nearly atmospheric pressure within a Time Projection Chamber (TPC) with optical readout via PMTs and scientific CMOS camera (sCMOS). These results have been obtained in the context of the CYGNO/INITIUM project, for the development of high precision 3D TPC for directional direct Dark Matter searches....

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  90. 48. Development of negative-ion gaseous TPC using micro pattern readout for direction-sensitive dark matter search
    Satoshi Higashino (Kobe University (JP))
    15/12/2022, 12:30

    NEWAGE is the experiment of direction-sensitive dark matter search using low pressure gaseous TPC with micro pattern strip readout (μ-PIC). It allows to measure the distribution of angles of WIMP-nuclear recoil by track reconstruction, and it leads a positive signature of dark matter. In recent years, large size (~1 m3) TPC filled with SF6 gas, which is so called “negative-ion gas”, is under...

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  91. 49. Ultra low background Micromegas detectors for BabyIAXO solar axion search
    Esther Ferrer Ribas (Université Paris-Saclay (FR))
    15/12/2022, 12:50

    IAXO is a large scale axion helioscope that will look for axions and axion-like particles produced in the Sun with unprecedented sensitivity. BabyIAXO is an in intermediate experimental stage that will be hosted at DESY (Germany) and that will test all IAXO subsytems serving as a prototype for IAXO but at same time as a fully-fledged helioscope with relevant physics at reach in itself and with...

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  92. 50. Measurement of Detector Properties in a Spherical Proportional Counter
    Philippe Gros
    15/12/2022, 13:10

    NEWS-G (New Experiments With Spheres-Gas) is an experiment searching for dark matter using Spherical Proportional Counters (SPCs). SPCs are low capacitance detectors which allow the detection of gas ionisation with very low (single electron) thresholds. It consists in a grounded metal sphere with a small sensing anode at the center, creating a radial electric field. Its low capacitance, and...

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  93. 11. Invited talk: MPGD in space applications
    Dr Toru Tamagawa (RIKEN)
    15/12/2022, 15:30
  94. 51. Neutron and beta imaging with Micromegas detectors with optical readout
    Antoine Cools, Antoine Cools (CEA - IRFU DEDIP)
    15/12/2022, 16:00

    Recent developments have shown that coupling a Micromegas gaseous detector on a glass substrate with a transparent anode and a CMOS camera enables the optical readout of Micromegas detectors. Efficient X-ray radiography has been demonstrated due to the integrated imaging approach inherent to optical readout. Spatial resolutions of better than σ = 200 μm have been demonstrated for low-energy...

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  95. 52. 3D track reconstruction of low-energy electrons in the MIGDAL low pressure optical time projection chamber
    Ms Elizabeth Tilly (University of New Mexico)
    15/12/2022, 16:20

    We will demonstrate three-dimensional track reconstruction of electrons in a low pressure (50 Torr) optical TPC consisting of two glass GEMs with an ITO strip readout in CF4 and CF4/Ar mixtures. These reconstructed tracks show a variety of event topologies, including short tracks from photoelectrons induced by 55Fe 5.9 keV X-rays and long tracks from gamma ray interactions and beta decays....

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  96. 53. The CYGNO Experiment: A Directional Dark Matter Detector with Optical Readout
    Fabrizio Petrucci (Universita e INFN Roma Tre (IT))
    15/12/2022, 16:40

    We are going to discuss the R&D and the prospects for the CYGNO/INITIUM project, towards the development of an innovative, high precision 3D tracking Time Projection Chamber with optical readout using He:CF4 gas at 1 bar. CYGNO uses a stack of triple thin GEMs for charge multiplication, this induces scintillation in CF4 gas, which is readout by PMTs and sCMOS camera. High granularity and low...

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  97. 54. FAT-GEM detectors for operation in noble elements
    Sara Leardini (Universidade de Santiago de Compostela (ES))
    15/12/2022, 17:00

    We introduced in 2019 a new concept for electroluminescence in noble elements, based on very-thick acrylic-based perforated structures (Field-Assisted Transparent Gas Electroluminescence Multipliers, or FAT-GEMs in short). Although the structure had the potential for increased light collection thanks to its transparent substrate, such a possibility was not exploited and efforts were put on...

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  98. 55. Towards Large Size Pixelized Micromegas for operation beyond 1 MHz/cm2
    Mauro Iodice (INFN - Sezione di Roma Tre)
    16/12/2022, 09:00

    In recent years, an R&D project has been conducted to consolidate resistive Micromegas technology for operations well beyond the current ones in HEP experiments, with the aim of a stable, reliable, and high gain operation up to particle rates above 1 MHz/cm2, on large surfaces. To achieve this goal, while maintaining a low occupancy on the readout elements, a configuration with small pads...

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  99. 56. Optimizing Structure and Operating of Gas Electron Multiplier (GEM) Detectors for High Particle Rate at Jefferson Lab
    Huong Nguyen (University of Virginia)
    16/12/2022, 09:20

    The Gas Electron Multiplier (GEM) detectors built at the University of Virginia are used for both front and rear tracking systems in the Super Bigbite Spectrometer (SBS) experiments at Jefferson Lab (JLab). These GEM detectors include some of the largest area GEM detectors to be used in an experiment. Furthermore, with over 50 large area GEM modules, this is one of the largest ever sets of...

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  100. 57. Studying MPGDs simultaneously in energy, space and time at high rates: performance of the new RD51 VMM3a/SRS beam telescope
    Lucian Scharenberg (CERN, University of Bonn (DE))
    16/12/2022, 09:40

    The RD51 collaboration organises up to three times per year joint test beam campaigns at the H4 beam line of the CERN SPS. Following the integration of the VMM3a front-end ASIC into the RD51 Scalable Readout System (SRS), the combination of VMM3a and SRS was adapted to read out a new beam telescope for the RD51 collaboration. Furthermore, the beam telescope was used as Beam Position Detector...

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  101. 58. Gaseous Detectors for Preclinical Proton Beam Monitoring, Characterization and Imaging
    Jona Bortfeldt (Ludwig Maximilians Universitat (DE))
    16/12/2022, 10:00

    At LMU Munich a proton irradiation platform for preclinical research with tumor bearing mouse models has been developed and commissioned. It converts injected clinical proton beams to low energies of 20 to 50MeV and small diameters of O(1mm) to enable precise, image-guided irradiation of mice. The profile of the produced beam has been in depth characterized with an optically read out bulk...

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  102. 60. The Effects of a Passive Bi-Polar Grid on Ion Back Flow & Resolution
    Vladislav Zakharov
    16/12/2022, 10:20

    Time Projection Chamber (TPC) tracking detectors measures 3D space points of charged particle to give position, dE/dx & Particle Identification (PID). The gain stages create large amounts of Ion Back Flow (IBF), which is the dominant source of space charge & distorts the drift E⃗-field, and thus resolution. IBF can be reduced by manipulating field ratios above and below the gain struc- ture to...

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  103. 61. Impact of the gas choice and the geometry on the breakdown limits in MPGD detectors
    Piotr Gasik (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
    16/12/2022, 11:10

    In this study we investigate the intrinsic stability limits of GEM, Thick GEM and Micromegas detectors upon irradiation with alpha particles. The measurements are performed in Ar- and Ne- based mixtures with different CO2 content to study the influence of the gas on discharge probability and critical charge limits. The latter are evaluated by comparing the experimental data to results obtained...

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  104. 62. Studies of HV discharges in GEM detectors for the CMS Endcap Muon System
    Simone Calzaferri (Università degli studi di Pavia - INFN Pavia)
    16/12/2022, 11:30

    From 2018 to the first months of 2022, the Large Hadron Collider (LHC) and the experiments installed on the accelerator ring have performed the Long Shutdown 2 (LS2) upgrade campaign, to cope with the challenges offered by the High Luminosity LHC project. This phase will consist in an increase of the luminosity delivered to the experiments, aiming at enlarging the data statistics, for search...

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  105. 63. Discharges and their effect in WELL detectors with and without resistive anodes
    Dr Abhik Jash (Weizmann Institute of Science (IL))
    16/12/2022, 11:50

    Resistive anodes are employed in gaseous detectors to avoid or minimize the damaging effects of discharges and to protect the readout electronics. We have characterized discharges in Thick-GEM-based WELL configurations with and without resistive anodes, employing different charge evacuation mechanisms. We used a new method for the resistive detectors to identify gas breakdowns that occur when...

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  106. 65. Invited talk: The way the simulation developed
    Rob Veenhof (CERN)
    16/12/2022, 12:10
  107. 59. NitroGEM, a beam monitor for high-intensity neutron beamlines
    davide raspino (STFC)

    The NitroGEM is a neutron beam monitor optimised for high-intensity beamlines. It is under development at ISIS in the UK for use on the Loki instrument at the ESS neutron source in Sweden. The Loki instrument is built by ISIS as part of the UK’s in-kind contribution to the ESS. The beam monitors play a crucial role during the commissioning and operations of a neutron instrument like...

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