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An innovative photosensitive gaseous detector, consisting of a GEM like amplification structure with double layered electrodes (instead of commonly used metallic ones) coated with a CsI reflective photocathode, is described. In one of our…

Instrumentation and Detectors · Physics 2008-07-18 V. Peskov , P. Martinengo , E. Nappi , R. Oliveira , G. Paic , F. Pietropaolo , P. Picchi

Passive Gamma Emission Tomography (PGET) is an IAEA-approved technique for verifying spent nuclear fuel assemblies prior to geological disposal. Reconstructing the emission and attenuation maps from PGET measurements is a nonlinear…

Numerical Analysis · Mathematics 2026-04-30 Tommi Heikkilä , Sara Heikkinen , Riina Rimppi , Tapio Helin

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…

Radar targets are traditionally modelled as point target reflectors, even in the near-field region. Yet, for radar systems operating at high carrier frequencies and small distances, traditional radar propagation models do not accurately…

Signal Processing · Electrical Eng. & Systems 2024-03-28 François De Saint Moulin , Guillaume Thiran , Christophe Craeye , Luc Vandendorpe , Claude Oestges

Ground-based gamma-ray astronomy is a powerful tool to study cosmic-ray physics, providing a diagnostic of the high-energy processes at work in the most extreme astrophysical accelerators of the universe. Ground-based gamma-ray detectors…

Instrumentation and Methods for Astrophysics · Physics 2023-07-07 Ulisses Barres de Almeida , Martin Tluczykont

The central goal of this thesis is to develop methods to experimentally study topological phases. We do so by applying the powerful toolbox of quantum simulation techniques with cold atoms in optical lattices. To this day, a complete…

Quantum Gases · Physics 2017-09-26 Samuel Mugel

The Diffusion Entropy algorithm is a method that allows the study of correlated non stationary time series and allows the discrimination between signal and uncorrelated noise. DE provides a quantitative measure of the complexity by means of…

Astrophysics · Physics 2009-11-10 N. Omodei , J. Bellazzini , S. Montangero

This document contains the pre-design of the beam diagnostics components Tracking Detectors for the Super-FRS. A GEM-TPC detector has been suggested as suitable tracking detector for the ion/fragment beams produced at the in-flight…

Instrumentation and Detectors · Physics 2019-06-28 F. Garcia , C. Caesar , T. Grahn , A. Prochazka , B. Voss

A novel concept of optical signal recording in two-phase avalanche detectors, with Geiger-mode Avalanche Photodiodes (G-APD) is described. Avalanche-scintillation photons were measured in a thick Gas Electron Multiplier (THGEM) in view of…

Instrumentation and Detectors · Physics 2011-04-07 A. Bondar , A. Buzulutskov , A. Grebenuk , A. Sokolov , D. Akimov , I. Alexandrov , A. Breskin

We describe a method for analyzing the phase space structures of Hamiltonian systems. This method is based on a time-frequency decomposition of a trajectory using wavelets. The ridges of the time-frequency landscape of a trajectory, also…

Chaotic Dynamics · Physics 2009-11-07 C. Chandre , S. Wiggins , T. Uzer

Simultaneous observations by the large number of gamma-ray burst detectors operating in the GLAST era will provide the spectra, lightcurves and locations necessary for studying burst physics and testing the putative relations between…

Astrophysics · Physics 2019-08-13 David Band

This report summarizes the present knowledge on discharges in micropattern and small gap gaseous detectors and the physical mechanisms involved. These include the space-charge (Raether's) limit, rate-induced breakdown, cathode excitation…

Instrumentation and Detectors · Physics 2009-11-04 V. Peskov , P. Fonte

Ensuring reliable data collection in large-scale particle physics experiments demands Data Quality Monitoring (DQM) procedures to detect possible detector malfunctions and preserve data integrity. Traditionally, this resource-intensive task…

High Energy Physics - Experiment · Physics 2025-09-19 Arsenii Gavrikov , Julián García Pardiñas , Alberto Garfagnini

The reliability assessment of a machine learning model's prediction is an important quantity for the deployment in safety critical applications. Not only can it be used to detect novel sceneries, either as out-of-distribution or anomaly…

Machine Learning · Computer Science 2022-05-12 Steve Dias Da Cruz , Bertram Taetz , Thomas Stifter , Didier Stricker

We report about a nuclear track imaging system which is designed to study in detail the ionization topology of charged particle tracks in a low-pressure gas. The detection method is based on a time projection chamber (TPC) filled with…

Instrumentation and Detectors · Physics 2007-05-23 U. Titt , A. Breskin , R. Chechik , V. Dangendorf , H. Schmidt-Boecking , H. Schuhmacher

The radio frequency 1.4 GHz transition of the atomic hydrogen is one of the important tracers of the diffuse neutral interstellar medium. Radio astronomical observations of this transition, using either a single dish telescope or an array…

Astrophysics of Galaxies · Physics 2016-08-29 Nirupam Roy

Study of the uniformity of gain, energy resolution and count rate over active area of a triple GEM detector has been performed using a strong Fe55 X-ray source with premixed gas of Argon and CO2 in 70/30 ratio and conventional NIM…

Instrumentation and Detectors · Physics 2019-07-24 S. Chatterjee , S. Chakraborty , S. Roy , S. Biswas , S. Das , S. K. Ghosh , S. K. Prasad , S. Raha

Low-Gain Avalanche Detectors are gathering interest in the High-Energy Physics community thanks to their fast-timing and radiation-hardness properties, which are planned to be exploited, for example, in timing detectors for the upgrades of…

Instrumentation and Detectors · Physics 2019-05-07 Gabriele Giacomini , Wei Chen , Francesco Lanni , Alessandro Tricoli

The dynamics of turbulent mixing induced by Rayleigh-Taylor instability are heavily dependent on the acceleration experienced by the fluids and the frequency content of the initial interface between them. Both are readily controllable in…

Fluid Dynamics · Physics 2025-11-17 J. T. Horne-Jones , D. J. Glinnan , A. G. W. Lawrie , R. J. R. Williams