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We review latest progress in gaseous photomultipliers (GPM) combining solid photocathodes and various types of novel electron multipliers. Cascaded gaseous electron multipliers (GEM) coated with CsI photocathodes can efficiently replace…

Instrumentation and Detectors · Physics 2009-11-13 R. Chechik , A. Breskin

The time-dependent gain variation of detectors incorporating Thick Gas Electron Multipliers (THGEM) electrodes was studied in the context of charging-up processes of the electrode's insulating surfaces. An experimental study was performed…

Instrumentation and Detectors · Physics 2018-03-28 M. Pitt , P. M. M. Correia , S. Bressler , A. E. C. Coimbra , D. Shaked Renous , C. D. R. Azevedo , J. F. C. A. Veloso , A. Breskin

In this work GEM and single-hole Thick GEM structures, composed of different coating materials, are studied. The used foils incorporate conductive layers made of copper, aluminium, molybdenum, stainless steel, tungsten and tantalum. The…

Instrumentation and Detectors · Physics 2021-11-08 B. Ulukutlu , P. Gasik , T. Waldmann , L. Fabbietti , T. Klemenz , L. Lautner , R. de Oliveira , S. Williams

Gas detectors are one of the pillars of the research in fundamental physics. Since many years, a new concept of detectors, the Micro Pattern Gas Detectors, allows to overcome many of the problems of other types of commonly used detectors,…

Many experiments are currently using or proposing to use large area GEM foils in their detectors, which is creating a need for commercially available GEM foils. Currently CERN is the only main distributor of large GEM foils, however with…

Instrumentation and Detectors · Physics 2018-06-07 M. Posik , B. Surrow

The Gas Electron Multiplier detectors with wire and metallic electrodes, with a gas filling in the gap between them were proposed and tested. The main advantage of these Gas Electron Multipliers compared to standard ones consists in their…

Instrumentation and Detectors · Physics 2010-12-22 B. M. Ovchinnikov , V. V. Parusov , Yu. B. Ovchinnikov

The use of gaseous Time Projection Chambers enables the detection and the detailed study of rare events due to particles interactions with the atoms of the gas with energy releases as low as a few keV. Due to this capability, these…

Thick GEM-like (THGEM) gaseous electron multipliers are made of standard printed-circuit board perforated with sub-millimeter diameter holes, etched at their rims. Effective gas multiplication factors of 100000 and 10000000 and fast pulses…

Instrumentation and Detectors · Physics 2008-11-26 C. Shalem , R. Chechik , A. Breskin , K. Michaeli

Non destructive quality control of microstructures at the manufacturing stage is an important issue in the foreseen use of huge numbers of such gaseous detectors in the future high luminosity colliders. In this work we report on the use of…

Instrumentation and Detectors · Physics 2009-10-31 F. A. F. Fraga , S. T. G. Fetal , R. Ferreira Marques , A. J. P. L. Policarpo

The two-dimensional (2D) homogeneous electron gas (HEG) is a fundamental model in quantum many-body physics. It is important to theoretical and computational studies, where exchange-correlation energies computed in it serve as the…

Strongly Correlated Electrons · Physics 2025-01-17 Yiqi Yang , Yubo Yang , Kun Chen , Miguel A. Morales , Shiwei Zhang

The detection of photons produced during the avalanche development in gas chambers has been the subject of detailed studies in the past. The great progresses achieved in last years in the performance of micro-pattern gas detectors on one…

Instrumentation and Detectors · Physics 2016-01-20 Michela Marafini , Vincenzo Patera , Davide Pinci , Alessio Sarti , A. Sciubba , Eleuterio Spiriti

When a $\gamma$-ray interacts in a semiconductor detector, the resulting electron-hole charge clouds drift towards their respective electrodes for signal collection. These charge clouds will expand over time due to both thermal diffusion…

Instrumentation and Methods for Astrophysics · Physics 2023-04-20 Steven E. Boggs

Calorimeter shower simulations are often the bottleneck in simulation time for particle physics detectors. A lot of effort is currently spent on optimizing generative architectures for specific detector geometries, which generalize poorly.…

Instrumentation and Detectors · Physics 2022-12-19 Junze Liu , Aishik Ghosh , Dylan Smith , Pierre Baldi , Daniel Whiteson

In view of a possible application as a charge-particle track readout for an Active-Target Time Projection Chamber (AT-TPC), the operational properties and performances of a hybrid Micro-Pattern Gaseous Detector (MPGD) were investigated in…

Instrumentation and Detectors · Physics 2015-12-23 Marco Cortesi , Wolfgang Mittig , Daniel Bazin , Saul Beceiro-Novo , John Yurkon , Rim Soussi Tanani , Michael Wolff , Andreas Stolz

The occurrence of electrical discharges in gas detectors restricts their dynamic range and degrades their performance. Among the different methods developed to mitigate discharge effects, the use of resistive materials in the detector…

Instrumentation and Detectors · Physics 2022-11-16 Abhik Jash , Luca Moleri , Shikma Bressler

The emergent hole dispersion in flat bands is an invaluable platform to study the interplay of quantum geometry and electron-electron interaction with a relatively simple setting. In this work, we find that the hole dispersion in ideal…

Strongly Correlated Electrons · Physics 2024-09-16 Guangyue Ji , Bo Yang

Optically read out gaseous detectors are used in track reconstruction and imaging applications requiring high granularity images. Among resolution-determining factors, the amplification stage plays a crucial role and optimisations of…

Instrumentation and Detectors · Physics 2024-07-23 A. Cools , E. Ferrer-Ribas , T. Papaevangelou , E. C. Pollacco , M. Lisowska , F. M. Brunbauer , E. Oliveri , F. J. Iguaz

Charge multiplication through avalanche processes is commonly employed in the detection of single photons or charged particles in high-energy physics and beyond. In this report, we provide a detailed discussion of the properties of…

Instrumentation and Detectors · Physics 2021-04-23 Philipp Windischhofer , Werner Riegler

Compared to Multi Wires Proportional Chambers (MWPC), Micro-Pattern Gas Detectors (MPGD) used in HEP to detect MIPs offer better spatial resolution, counting rate capability, and radiation hardness; their fabrication is also more…

Instrumentation and Detectors · Physics 2014-10-02 Bruno Guerard , Richard Hall-Wilton , Fabrizio Murtas
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