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The Gas Electron Multiplier (GEM) detectors are widely used in high-energy physics (HEP) experiments as tracking devices because of their excellent position resolution and to handle high particle rates capability. Charging-up effect is a…

Instrumentation and Detectors · Physics 2026-05-06 S. Mandal , S. Ghosh , S. Das , S. Biswas

We developed a prototype time projection chamber using gas electron multipliers (GEM-TPC) for high energy heavy ion collision experiments. To investigate its performance, we conducted a beam test with 3 kinds of gases (Ar(90%)-CH4(10%),…

Instrumentation and Detectors · Physics 2008-11-26 S. X. Oda , H. Hamagaki , K. Ozawa , M. Inuzuka , T. Sakaguchi , T. Isobe , T. Gunji , Y. Morino , S. Saito , Y. L. Yamaguchi , S. Sawada , S. Yokkaichi

Fast simulation of the energy depositions in high-granular detectors is needed for future collider experiments with ever-increasing luminosities. Generative machine learning (ML) models have been shown to speed up and augment the…

Instrumentation and Detectors · Physics 2024-02-27 Erik Buhmann , Frank Gaede , Gregor Kasieczka , Anatolii Korol , William Korcari , Katja Krüger , Peter McKeown

The triple GEM detector is a micropattern gas detector which consists of a primary ionisation gap and three consecutive gas electron multiplier (GEM) foils. A printed circuit board with readout strips detects the current induced by the…

High Energy Physics - Experiment · Physics 2009-10-31 M. Ziegler , P. Sievers , U. Straumann

We have developed a new detector of photons and charged particles- a hole-type structure with electrodes made of a double layered resistive material: a thin low resistive layer coated with a layer having a much higher resistivity. One of…

Instrumentation and Detectors · Physics 2008-11-26 G. Charpak , P. Benaben , P. Breuil , A. Di Mauro , P. Martinengo , V. Peskov

We show that physics of multi-GEM structures is rather complex, regarding the number of phenomena affecting detector performance. The high-pressure operation in noble gases and the ion feedback are considered in more detail. It is proposed…

Instrumentation and Detectors · Physics 2009-11-07 A. Buzulutskov

Radiation is important for the propagation of streamers in dielectric liquids. Photoionization is a possibility, but the effect is difficult to differentiate from other contributions. In this work, we model radiation from the streamer head,…

Applied Physics · Physics 2020-07-28 I Madshaven , OL Hestad , M Unge , O Hjortstam , PO Åstrand

This part of the conference proceeding provides a detailed overview of cutting-edge advancements in detector technologies, focusing on their optimization, characterization, and applications in particle physics experiments. Building on the…

We present a numerical method to deal efficiently with large numbers of particles in incompressible fluids. The interactions between particles and fluid are taken into account by a physically motivated ansatz based on locally defined drag…

Condensed Matter · Physics 2016-08-31 W. Kalthoff , S. Schwarzer , G. H. Ristow , H. J. Herrmann

The new beam profile measurement for the Antiproton Decelerator (AD) at CERN is based on a single Gas Electron Multiplier (GEM) with a 2D readout structure. This detector is very light (~0.4% X0), and measures horizontal and vertical…

Instrumentation and Detectors · Physics 2012-03-20 Serge Duarte Pinto , Rhodri Jones , Leszek Ropelewski , Jens Spanggaard , Gerard Tranquille

BESIII is a particle physics experiment located at the Institute of High-Energy Physics (BEPC-II) e+e- collider at IHEP in Beijing. The Italian collaboration is leading the effort for the development of a cylindrical GEM (CGEM) detector…

Instrumentation and Detectors · Physics 2018-08-07 R. Farinelli

For its ease manufacturing, flexible geometry, and cheap manufacturing cost, the gas electron multiplier (GEM) detector can be used as an x-ray image sensor. For this purpose, we acquired relative detection efficiencies and suggested a…

Instrumentation and Detectors · Physics 2015-03-13 Sukyoung Shin , Jaehoon Jung , Soonhyouk Lee

A quadruple GEM detector has been assembled in a standalone configuration and operated using Ar and CO$_2$ gas mixtures in proportions of 70:30 and 90:10. Detailed performance study of the detector has been made by using $^{106}$Ru-Rh…

Instrumentation and Detectors · Physics 2018-10-09 Rajendra Nath Patra , Rama Narayan Singaraju , Saikat Biswas , Yogendra P. Viyogi , Tapan K. Nayak

A study has been carried out to evaluate the performance stability of Gas Electron Multiplier (GEM) chamber prototypes in the laboratory using $^{55}$Fe radiation source with Argon and CO$_2$ gas mixture. This research focuses on the…

Instrumentation and Detectors · Physics 2026-04-10 S. Mandal , S. Gope , S. Das , S. Biswas

Gas detector are very light instrument used in high energy physics to measure the particle properties: position and momentum. Through high electric field is possible to use the Gas Electron Multiplier (GEM) technology to detect the…

Context. The magnetic field in the solar atmosphere continually reconnects and accelerates charged particles to high energies. Simulations of the atmosphere in three dimensions that include the effects of accelerated particles can aid our…

Solar and Stellar Astrophysics · Physics 2022-10-05 L. Frogner , B. V. Gudiksen

We consider a non-isothermal compositional gas liquid model for the simulation of well operations in geothermal processes. The model accounts for phase transitions assumed to be at thermodynamical equilibrium and is based on an…

Numerical Analysis · Mathematics 2024-01-05 Daniel Castanon Quiroz , Laurent Jeannin , Simon Lopez , Roland Masson

With Gaussian expansion method (GEM), realistic wave functions are used to calculate coupled-channel effects for the bottomonium under the framework of ${}^3P_0$ model. The simplicity and accuracy of GEM are explained. We calculate the mass…

High Energy Physics - Phenomenology · Physics 2016-08-17 Yu Lu , Muhammad Naeem Anwar , Bing-Song Zou

The nonlinear space-charge effects in a high intensity or high brightness accelerator can have a significant impact on the beam properties through the accelerator. These effects are included in the accelerator design via self-consistent…

Accelerator Physics · Physics 2023-02-22 Ji Qiang

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