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We have developed a novel technique for the measurement of the size of avalanche fluctuations of gaseous detectors using a gating device (gating foil) prepared for the time projection chamber in the international linear collider experiment…

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,…

Instrumentation and Detectors · Physics 2019-09-04 Alexander Bondar , Alexei Buzulutskov , Egor Frolov , Vladislav Oleynikov , Ekaterina Shemyakina , Andrey Sokolov

Given an undirected graph G, the effective resistance r(s,t) measures the dissimilarity of node pair s,t in G, which finds numerous applications in real-world problems, such as recommender systems, combinatorial optimization, molecular…

Social and Information Networks · Computer Science 2023-12-12 Renchi Yang , Jing Tang

Large area Gas Electron Multiplier (GEM) detectors have been the preferred choice for tracking devices in major nuclear and particle physics experiments. Uniformity over surface of the detector in terms of gain, energy resolution and…

Instrumentation and Detectors · Physics 2018-08-15 Rajendra Nath Patra , Rama N. Singaraju , Saikat Biswas , Zubayer Ahammed , Tapan K. Nayak , Yogendra P. Viyogi

Working gas components significantly impact the performance of gaseous detectors. A fast-timing Micromegas detector with two-stage amplification is prone to notable deterioration of uniformity when scaled up. This paper presents a…

Instrumentation and Detectors · Physics 2024-11-08 Yue Meng , Xu Wang , Jianbei Liu , Ming Shao , Zhiyong Zhang , Yi Zhou

We investigate the properties of two standard energy estimators used in path-integral Monte Carlo simulations. By disentangling the variance of the estimators and their autocorrelation times we analyse the dependence of the performance on…

Condensed Matter · Physics 2009-10-30 Wolfhard Janke , Tilman Sauer

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 charged…

We study some aspects of a Monte Carlo method invented by Maggs and Rossetto for simulating systems of charged particles. It has the feature that the discretized electric field is updated locally when charges move. Results of simulations of…

Statistical Mechanics · Physics 2007-06-27 P. A. McClarty

We have recently developed an innovative detector of photons and charged particles: a GEM-like gaseous amplification structure with resistive electrodes instead of commonly used metallic ones. This novel detector combines the best property…

Instrumentation and Detectors · Physics 2010-05-12 P. Fonte , P. Martinengo , E. Nappi , R. Oliveira , V. Peskov

The Large Electron Multipliers (LEMs) are key components of double phase liquid argon TPCs. The drifting charges after being extracted from the liquid are amplified in the LEM positioned half a centimeter above the liquid in pure argon…

Instrumentation and Detectors · Physics 2015-06-23 C. Cantini , L. Epprecht , A. Gendotti , S. Horikawa , L. Periale , S. Murphy , G. Natterer , C. Regenfus , F. Resnati , F. Sergiampietri , A. Rubbia , T. Viant , S. Wu

A large volume time projection chamber (TPC) has been proposed as main tracking device for a detector at a future linear e+e- collider. Gas electron multipliers (GEMs) are studied as potential replacement of the conventional wire based gas…

Instrumentation and Detectors · Physics 2007-05-23 Peter Wienemann

At NISER-IoP detector laboratory an initiative is taken to build and test Gas Electron Multiplier (GEM) detectors for ALICE experiment. The optimisation of the gas flow rate and the long-term stability test of the GEM detector are…

The challenging physics program at the International Linear Collider (ILC) poses stringent requirements on the performance of its tracking system. A large volume time projection chamber (TPC) is considered a good candidate for such a…

Instrumentation and Detectors · Physics 2017-08-23 Peter Wienemann

The LCTPC collaboration is developing a time projection chamber (TPC) for a future linear collider. In the ILD concept for an ILC detector a TPC is foreseen as main tracking device. In order to get measurable signals on the anode, the…

Instrumentation and Detectors · Physics 2009-02-02 Lea Hallermann , Jeannine Beck

The Micro-Pattern Gaseous Detectors offer excellent spatial and temporal resolution in harsh radiation environments of high-luminosity colliders. In this work, an attempt has been made to establish an algorithm for estimating the time…

Instrumentation and Detectors · Physics 2016-05-11 Purba Bhattacharya , Nayana Majumdar , Supratik Mukhopadhyay , Sudeb Bhattacharya

The widespread popularity of replica exchange and expanded ensemble algorithms for simulating complex molecular systems in chemistry and biophysics has generated much interest in enhancing phase space mixing of these protocols, thus…

Statistical Mechanics · Physics 2011-12-06 John D. Chodera , Michael R. Shirts

Gas Electron Multiplier (GEM)-based detectors using a layer of 10B as a neutron converter is becoming popular for thermal neutron detection. A common strategy to simulate this kind of detector is based on two frameworks: Geant4 and…

Instrumentation and Detectors · Physics 2022-12-21 R. Felix dos Santos , M. G. Munhoz , M. Moralles , L. A. Serra Filho , M. Bregant , F. A. Souza

We study the performances of gaseous and two-phase (liquid-gas) cryogenic detectors of ionizing radiation based on gas electron multipliers (GEMs) and operated in an avalanche mode in pure noble gases. The gas amplification in He, Ar and Kr…

Instrumentation and Detectors · Physics 2009-11-10 A. Bondar , A. Buzulutskov , L. Shekhtman , R. Snopkov , Y. Tikhonov

An electron-multiplying charge-coupled device (EMCCD) is often used for taking images with space telescopes and other devices. Photons hit the pixels and photo-electrons are created, and these are multiplied via impact ionization as they…

Instrumentation and Methods for Astrophysics · Physics 2025-03-25 Kevin Ludwick

Micro-Pattern Gaseous Detectors (MPGDs) such as Micromegas or GEM are used in particle physics experiments for their capabilities in particle tracking at high rates. Their excellent position resolutions are well known but their energy…

Instrumentation and Detectors · Physics 2011-07-19 T. Zerguerras , B. Genolini , V. Lepeltier , J. Peyre , J. Pouthas , P. Rosier
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