3D simulation of electron and ion transmission of GEM-based detectors

Bhattacharya, Purba; Mohanty, B.; Mukhopadhyay, Supratik; Majumdar, N.; Luz, H. Natal da

doi:10.1016/j.nima.2017.06.054

Cited by 11 publications

(9 citation statements)

References 12 publications

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“…Electric field has been computed using neBEM [30,31], which once again is free, open source, and the commercially available FEM package COMSOL [32]. While the particle model is realistic and extremely capable [33,34], it has certain limitations that turn out to be important especially when the number of charged particles is large. Since the model inherently tracks each of the charged particles, the computation time becomes inordinately long in such cases.…”

Section: Mathematical Modelsmentioning

confidence: 99%

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

et al. 2022

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Gas Electron Multipliers (GEM) are among the more prominent Micro-Pattern Gaseous Detectors (MPGDs) and widely used in high energy particle physics experiments and various related applications. Adoption of different production techniques lead to holes of varying geometries in GEM foils. Since the response of a GEM-based detector is closely related to the hole geometry through the influence of the latter on charge sharing and transport through GEM foils, attempts have been made to relate hole configurations to different figures of merit of a detector. Numerical simulations have been performed to study the effects of hole geometry on important parameters such as charge sharing, collection efficiency, extraction efficiency, gain, possibility of transition from avalanche to streamer modes for single-, double- and triple-layer GEM detectors. The numerical estimates have been compared to available experimental data. The comparisons, although not always in agreement, are found to be generally encouraging.

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Section: Mathematical Modelsmentioning

confidence: 99%

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

et al. 2022

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show abstract

“…Electric field has been computed using neBEM [29,30], which once again is free, open source, and the commercially available FEM package COMSOL [31]. While the particle model is realistic and extremely capable [32,33], it has certain limitations that turn out to be important especially when the number of charged particles is large. Since the model inherently tracks each of the charged particles, the computation time becomes inordinately long in such cases.…”

Section: Mathematical Modelsmentioning

confidence: 99%

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

Roy,

Bhattacharya,

Rout

et al. 2021

Preprint

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Gas Electron Multipliers (GEM) are among the more prominent Micro-Pattern Gaseous Detectors (MPGDs) and widely used in high energy particle physics experiments and various related applications. Adoption of different production techniques lead to holes of varying geometries in GEM foils. Since the response of a GEM-based detector is closely related to the hole geometry through the influence of the latter on charge sharing and transport through GEM foils, attempts have been made to relate hole configurations to different figures of merit of a detector. Numerical simulations have been performed to study the effects of hole geometry on important parameters such as charge sharing, collection efficiency, extraction efficiency, gain, possibility of transition from avalanche to streamer modes for single, double and triple layer GEM detectors. The numerical estimates have been compared to available experimental data. The comparisons, although not always in agreement, are found to be generally encouraging.

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“…It is worth mentioning previous works on simulation of the electric fields and electron transport in THGEM-like structures in the gas phase: [11,12,13,14]. To the best of our knowledge, no one has simulated THGEM performance in liquid argon thus far; it has been done for the first time in the present work.…”

Section: Introductionmentioning

confidence: 99%

Electron transport and electric field simulations in two-phase detectors with THGEM electrodes

Bondar

Frolov

Oleynikov

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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One of the main features of two-phase detectors with electroluminescence (EL) gap being developed in our laboratory for dark matter search is the extensive use of THGEMs (Thick Gas Electron Multipliers). In various versions of the detector, the THGEMs are used as electrodes in the gas and liquid phases to form the drift, electron emission and EL regions, as well as for avalanche amplification of a signal in the gas phase. In this work the simulations of the electric field and electron transport through such THGEM electrodes were performed. In the liquid phase, these simulations allowed to determine the optimal parameters, such as the hole diameter of THGEM and applied voltage across it, that can provide effective transmission of the electrons from the drift region to that of the EL gap. In the gas phase, the effect of the THGHEM voltage on the electric field uniformity in the EL gap was studied. Structure of the THGEM-based two-phase detectorThe generalized version of the two-phase detector with EL gap used in our current studies [3,4,6,9] is shown in Fig. 1. To form the drift, electron emission and electroluminescence

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3D simulation of electron and ion transmission of GEM-based detectors

Cited by 11 publications

References 12 publications

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

Effect of hole geometry on charge sharing and other parameters in GEM-based detectors

Electron transport and electric field simulations in two-phase detectors with THGEM electrodes

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