RD51 activities and perspectives

• Maximilien Chefdeville (Centre National de la Recherche Scientifique (FR))

MPGD-based photon detectors for the upgrade of COMPASS RICH-1 and beyond

• Silvia Dalla Torre (Universita e INFN Trieste (IT))

Room: salle Casoar-Tadorne

Development of new MPGD structures for nuclear physics applications

• Marco Cortesi (National Superconducting Cyclotron Laboratory)

Room: salle Casoar-Tadorne

R&D on THGEM with Resistive Diamond-like carbon coating

• Guofeng Song (University of Science and Technology of China)

Room: salle Casoar-Tadorne

Recent advances with RPWELL Detectors – physics and potential applications

• Arindam Roy (Ben-Gurion University)

Room: salle Casoar-Tadorne

Test of the first MPGD-based (S)DHCAL

• Dan Shaked Renous (Weizmann Institute of Science (IL))

Room: salle Casoar-Tadorne Digital and Semi-Digital Hadronic Calorimeters (S-DHCAL) were suggested for future Colliders as part of the particle-flow concept. Though studied mostly with RPCs, MPGD-based sampling elements could significantly improve the calorimeter performance thanks to their proportional response. In 2018, several large-area resistive Micromegas and Resistive Plate WELL (RPWELL) of 48x48$~$cm$^{2}$ were tested at CERN. The performance of the first produced detectors were studied with high energy particles delivered by the SPS machine. Then, all detectors were grouped with steel absorber plates into a small MPGD-based SDHCAL prototype which recorded hadronic showers of low-energy pions from the PS. The response of the individual sampling elements and of the calorimeter will be reported. For the former, emphasis will be put on MIP efficiency and hit multiplicity, spatial uniformity, HV stability, and rate effects. The calorimeter response is derived from data samples recorded at different pion momenta, from 2 to 6 GeV/c. To minimise leakage at the rear of the calorimeter, pions showering in the first layers were selected. This way, the energy resolution of the prototype could be assessed as well. Results will be shown and when possible, compared to simulated ones.

Performances of the Micromegas Vertex Tracker at the CLAS12 experiment for the 2017-2018 physics run

• Maxence Vandenbroucke (Université Paris-Saclay (FR))

Room: salle Casoar-Tadorne

Development of μ-PIC with glass substrate aiming at high gas gain

• Mitsuru Abe (Kyoto university)

Room: salle Casoar-Tadorne

Production of Micromegas and progress on the HV stability issues

• Giada Mancini (INFN e Laboratori Nazionali di Frascati (IT))

Room: salle Casoar-Tadorne

VMM3a, an ASIC for tracking detectors

• George Iakovidis (Brookhaven National Laboratory (US))

Room: salle Casoar-Tadorne

New Physics frontiers and future accelerators

• Maksym Titov (Université Paris-Saclay (FR))

Room: salle Casoar-Tadorne

CMS Phase II Upgrade with GEM detectors

• Mohit Gola (University of Delhi (IN))

Room: salle Casoar-Tadorne

Production, Quality Control and Performance of GE1/1 Detectors for the CMS Upgrade

• Rosamaria Venditti (Universita e INFN, Bari (IT))

Room: salle Casoar-Tadorne

Lessons Learnt from the GE1/1 Slice test

• Brian Dorney (Universite Libre de Bruxelles (BE))

Room: salle Casoar-Tadorne

A scalable High Voltage power supply system with SoC control for Micro Pattern Gaseous Detector

• Stefano Levorato (Universita e INFN Trieste (IT))

Room: salle Casoar-Tadorne

Recent Development of Glass GEMs and Their Uses

• Takeshi Fujiwara (National Institute of Advanced Industrial Science & Technology )

Room: salle Casoar-Tadorne

Development and Properties of 100 mm-square size LTCC-GEM

• Yoko Takeuchi (Tokyo Metropolitan Industrial Technology Research Institute)

Room: salle Casoar-Tadorne

Neutrino physics : current and future experiments

• Kam-Biu Luk

Room: salle Casoar-Tadorne

Small-pad resistive Micromegas: Comparison of patterned embedded resistors and DLC based spark protection systems

• Mauro Iodice (INFN - Sezione di Roma Tre)

Room: salle Casoar-Tadorne

Correlation of optical and electrical measurements of the delayed discharge propagation in GEM detector

• Antonija Utrobicic (University of Zagreb, Faculty of Science)

Room: salle Casoar-Tadorne

A numerical investigation on the discharges in Micromegas

• Deb Sankar Bhattacharya (Julius Max. Universitaet Wuerzburg (DE))

Room: salle Casoar-Tadorne

Study of discharges and their effects in GEM detectors

• Jeremie Alexandre Merlin (CERN)

Room: salle Casoar-Tadorne

SRS VMM readout for Gadolinium GEM-based detector prototypes for the NMX instrument at ESS

• Michael Lupberger (CERN)

Room: salle Casoar-Tadorne

Picosecond timing detectors and applications

• Jerry Va'vra (SLAC)

Room: salle Casoar-Tadorne

Recent Developments on Precise Timing with the PICOSEC Micromegas Detector

• Ioannis Manthos (Aristotle University of Thessaloniki)

Room: salle Casoar-Tadorne

Recent photocathode and sensor developments for the PICOSEC micromegas detector

• Xu Wang (University of Science and Technology of China (CN))

Room: salle Casoar-Tadorne

Diamond Like Carbon for the Fast Timing MPGD

• Piet Verwilligen (Universita e INFN, Bari (IT))

Room: salle Casoar-Tadorne

Development of GEM based Transition Radiation Detector and Tracker (GEM-TRD/T)

• Kondo Gnanvo (University of Virginia (US))

Room: salle Casoar-Tadorne

Laser ablation as a novel manufacturing technique of high-precision 1D- and 2D-readout boards for Micro-Pattern Gaseous Detectors (cancelled-included in next talk)

• Stephan Aune (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

Room: salle Casoar-Tadorne

New Developments in MPGDs for a Future Electron Ion Collider

• Bob Azmoun (Brookhaven National Laboratory)

Room: salle Casoar-Tadorne

Development of resistive Micromegas TPCs for the T2K experiment

• David ATTIE (CEA/DSM/DAPNIA/SPP)

Room: salle Casoar-Tadorne

A new scheme for Micromegas TPC readout : the encapsulated resistive anode with reverse grounding

• Paul Colas (Université Paris-Saclay (FR))

Room: salle Casoar-Tadorne

A high-gain and low ion-backflow double micro-mesh gaseous structure

• Jianbei Liu (University of Science and Technology of China (CN))

Room: salle Casoar-Tadorne

TPC technologies using MPGDs

• Piotr Gasik (Technische Universität Muenchen (DE))

Room: salle Casoar-Tadorne

dE/dx Resolution Studies of a Pre-Production Read Out Chamber for the ALICE GEM TPC

• Thomas Klemenz (Technische Universitaet Muenchen (DE))

Room: salle Casoar-Tadorne

Study of a passive gating grid for IBF suppression

• Vladislav Zakharov

Room: salle Casoar-Tadorne

Low-pressure TPC with THGEM readout for ion identification in Accelerator Mass Spectrometry

• Tamara Shakirova (Budker Institute of Nuclear Physics)

Room: salle Casoar-Tadorne A new technique for ion identification in Accelerator Mass Spectrometry (AMS) has been proposed based on measuring the ion track ranges using a low-pressure time projection chamber (TPC). As a proof of principle, the low-pressure TPC with charge readout using a THGEM multiplier was developed. The tracks of alpha-particles from various radioactive sources were successfully recorded in the TPC. The track ranges were measured with a rather high accuracy, reaching 3%. Using these results and SRIM code simulation, it is shown that the isobaric boron and beryllium ions can be effectively separated at the 10 sigma level. This technique is expected to be applied in the AMS facility in Novosibirsk for dating geological objects, in particular for geochronology of Cenozoic Era.

Development of a Time Projection Chamber for Hadron Experiments at J-PARC

• Shinhyung Kim

Room: salle Casoar-Tadorne

MPGD applications outside high energy physics

• Florian Maximilian Brunbauer (CERN, Vienna University of Technology (AT))

Room: salle Casoar-Tadorne

Development of novel ultra-thin Micromegas and a Time Projection Chamber for animal ion transmission tomography

• Jona Bortfeldt (CERN)

Room: salle Casoar-Tadorne

ACTAR TPC: a tool for nuclear physics applications

• Thomas ROGER (Grand Accelerateur National d'Ions Lourds (FR))

Room: salle Casoar-Tadorne The ACTAR TPC (Active Target & Time Projection Chamber) is a detector developed for fundamental nuclear physics studies such as nuclear reaction and structure studies as well as exotic decay and proton emission studies. It results from the joint efforts to build a second generation gaseous target and detector that merges the advantages of the first generation active target MAYA based on wire amplification and the CENBG TPC based on GEMs. In addition to specific developments concerning the high density collection plane (with 16k pads) and the active volume, the device is equipped with the GET electronics that allows for time sampling of signal of each pad for a full 3D reconstruction of tracks. The pad planes are equipped with 128 and 256 µm bulk micromegas (64x128 mm2) either on standard PCB or on a specific metal-core PCD. After the realization of demonstrator detectors that have been tested in various conditions including in beam tests, the final detectors (2 pad plane geometries have been designed) are now almost completed, with in-beam commissioning runs at GANIL, for active target and decay detector modes of the device. We propose to present the characteristics of the detector in terms of particle tracking and energy analysis, resulting from the various source and beam test measurements. We will also address the issues related to the gas used in Active Targets. The ACTAR TPC device is planned to be used in 2 experiments at GANIL in 2019.

GEM detectors for the MAGIX focal plane: minimising materials for low energy experiments

• Stefano Caiazza (Johannes Gutenberg Universitaet Mainz (DE))

Room: salle Casoar-Tadorne The new MAGIX experiment, to be built at the 105 MeV line of the ERL MESA at the institute for Nuclear Physics of the University of Mainz, features two high-resolution spectrometers looking at the target area where luminosity of the order of $10^{35} \text{cm}^{-2}\text{s}^{-1}$ will be achievable. To improve the momentum and angular resolution of the spectrometers, the greatest challenge is to minimise the material budget of their GEM-based focal plane detectors as much as possible. In this talk we will present the solutions we developed to build a high-resolution MPGD tracker for those experimental conditions including a foil based readout plane with Chromium-GEM amplification and a short-drift TPC with an open field cage, the latter being the solution finally approved for the experiment.

new MPGD-based structures for electroluminescence TPCs

• Diego Gonzalez Diaz (Universidade de Santiago de Compostela (ES))

Room: salle Casoar-Tadorne Optical TPCs, specially those operating in electroluminescence mode, are widely used in the searches for rare events, particularly in those involving the reconstruction of very faint energy deposits (down to single photon/electron sensitivity) or outstanding energy resolution. Unlike avalanche multiplication, electroluminescence depends just on the maximum voltage that the structure can sustain, hence thick structures are preferable. In order to work in these conditions, a new type of very thick GEM ('FAT'-GEM) based on acrylic has been developed at CERN workshop. Acrylic is a rugged and homogeneous radio-pure material, easy to machine and widely available, therefore it holds some promise for a new generation of optimised structures in the field of rare event searches. First measurements under an Ar/Xe mixture at 10bar already showed an energy resolution extrapolating to 2%(FWHM) for the Qbb-energy of 136Xe, at an optical gain of around 1000ph/e. We will report in this contribution results of this ongoing effort, presenting results for a wide range of structures, gases and pressures.

CYGNO: Triple-GEM Optical Readout for Directional Dark Matter Search

• Davide Pinci (Sapienza Universita e INFN, Roma I (IT))

Room: salle Casoar-Tadorne

Charging up study in resistive Micromegas detectors

• Jerome Samarati (CERN)

Room: salle Casoar-Tadorne

Information Room: salle Casoar-Tadorne

New MPGD-based muon telescopes for ScanPyramids and associated R&D on gas consumption

• Sebastien Procureur (Université Paris-Saclay (FR))

Room: Amphitheater

Development of high-performance DLC resistive electrodes for MPGDs

• Lunlin Shang (Lanzhou Institute of Chemical Physics, Chinese Academy of Science)

Room: Amphitheater Diamond-like carbon (DLC) films are a class of metastable amorphous low-dimensional materials characterized by a mixture of diamond-structure with sp3 type C bonds and graphite-structure with sp2 type C bonds at the atomic level. DLC films open up new avenues to make high-performance resistive electrodes for Micro-Pattern Gaseous Detectors (MPGDs) that present numerous attractive properties, such as excellent mechanical performance, chemical inertness, thermal stability and a large range of electrical resistivity. The DLC resistive electrode not only replace the traditional carbon paste resistive electrode made by screen printing technique to avoid the occurrence of spark between electrodes, but also allow to develop new MPGD structures. In recent research, we have developed a thin DLC film on APICAL substrate with unbalanced magnetron sputtering technology. The sputtering process has been optimized with regards to mechanical adhesion, internal stress and surface resistivity of the DLC coating. A systematical study of the factors affecting the DLC surface resistivity have been investigated, including target power, deposition time, vacuum degree, element doping, and annealing treatment. The results are summarized as follows: (1) the surface resistivity decreases with the increase of the target power and the sputtering time, and appears more stable and uniform at lower target power (0.55kw) with longer sputtering time (40min); (2) the vacuum degree during the sputtering has a significant impact on the surface resistivity: the higher the degree of vacuum, the lower the surface resistivity; (3) hydrogen doping can increase the surface resistivity, probably due to the increase of the sp3 component in the DLC film; (4) after the annealing treatment at 200 degree, the surface resistance decreases to about 1/3 of its original value and stays stable afterwards. We also briefly present several examples of application of the DLC coating in development of MPGDs, including DLC photocathodes for the Picosecond Micromegas detector, resistive DLC electrodes for the μRWELL detector, and high-resistivity DLC coating for “charging-up free” THGEM detectors. In conclusion, we have developed a manufacturing technique for high-quality DLC resistive electrodes for MPGDs as a result of interdisciplinary research involving both material science and particle physics. Development of DLC resistive electrodes opens up enormous opportunities for innovative development and application of MPGDs.

Micromegas for beam loss monitoring

• Laura Segui

Room: Amphitheater

MPGD and neutron detection techniques and applications

• Gabriele Croci (Universita & INFN, Milano-Bicocca (IT))

Room: Amphitheater

Development of a thermal bonding method for fabrication of Micromegas and new MPGD structures

• Zhiyong Zhang (USTC)

Room: Amphitheater

Fast neutron spectroscopy from 1 MeV up to 15 MeV with MIMAC-FASTn, a mobile and directional fast neutron spectrometer

• Nadine Saudraix

Room: Amphitheatre

The Micro Strip Gas Chambers for the X-Ray monitor (JEM-X) onboard ESA’s INTEGRAL mission

• Carl Budtz-Jorgensen (Technical U. of Denmark, Nat. Space Institute)

Room: Amphitheater

Tribute to A. Oed: Anton Oed's Pre-MSGC-History at the Institut Laue-Langevin

• Peter Geltenbort (ILL )

Room: Amphitheater

Triibute to A. Oed: MSGCs and their descendants. Past, Present, and Future

• Vladimir Peskov (Russian Academy of Sciences (RU))

Room: Amphitheater

Tribute to A. Oed: MSGC for neutron scattering instruments at the ILL

• Bruno Guerard (ILL)

Room: Amphitheater

Charpak and Oed Award ceremonies Room: Amphitheater

RD51- Discussions on VMM electronics (open for everyone)

• Jochen Kaminski (University of Bonn (DE))

Room: salle Casoar-Tadorne

Astroparticle Physics

• Elisabetta Baracchini (Gran Sasso Science Institute)

Room: salle Casoar-Tadorne

New Results from GridPixes

• Jochen Kaminski (University of Bonn (DE))

Room: salle Casoar-Tadorne

Application of micro-pattern gas detectors in the present and future experiments in Budker INP

• Lev Shekhtman (Budker Institute of Nuclear Physics (RU))

Room: salle Casoar-Tadorne

First results of Rayleigh scattering method to define the size of ion clusters in a gaseous detector

• Yalcin Kalkan (Uludag University (TR))

Room: salle Casoar-Tadorne

High space resolution μ-RWELL for high rate applications

• Marco Poli Lener (INFN e Laboratori Nazionali di Frascati (IT))

Room: salle Casoar-Tadorne

LHM-based “local dual-phase TPCs” – potential tools for future noble-liquid detectors

• Amos Breskin (Weizmann Institute of Science (IL))

Room: salle Casoar-Tadorne