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In the last few years our group have focused on developing various designs of spark-protected micropattern gaseous detectors featuring resistive electrodes instead of the traditional metallic ones: resistive microstrip counters, resistive…

Instrumentation and Detectors · Physics 2015-06-04 P. Fonte , E. Nappi , P. Martinengo , R. Oliveira , V. Peskov F. Pietropaolo , P. Picchi

Micromegas technology is a promising candidate to replace Atlas forward muon chambers -tracking and trigger- for future HL-LHC upgrade of the experiment. The increase on background and pile-up event probability requires detector…

The phenomenon of avalanche-gain variations over time, particularly in Micro Pattern Gaseous Detectors (MPGD) incorporating insulator materials, have been generally attributed to electric-field modifications resulting from "charging-up"…

Instrumentation and Detectors · Physics 2017-10-25 Dan Shaked Renous , Arindam Roy , Amos Breskin , Shikma Bressler

Piggyback Micromegas consists in a novel readout architecture where the anode element is made of a resistive layer on a ceramic substrate. The resistive layer is deposited on the thin ceramic substrate by an industrial process which…

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 International Linear Collider (ILC) Time Projection Chamber (TPC) transverse space-point resolution goal is 100 microns for all tracks including stiff 90 degree tracks with the full 2 meter drift. A Micro Pattern Gas Detector (MPGD)…

Instrumentation and Detectors · Physics 2022-04-26 M. Dixit , D. Attie , A. Bellerive , K. Boudjemline , P. Colas , P. Giganon , I. Giomataris , V. Lepeltier , S. Liu , J. -P. Martin , K. Sachs , Y. Shin , S. Turnbull

Current and next-generation particle tracking detectors will incorporate precision timing capabilities with resolutions approaching tens of picoseconds. Using Technology Computer-Aided Design (TCAD) simulations of Low-Gain Avalanche Diode…

We describe the most recent efforts made by various groups in implementing resistive electrodes in micropattern gaseous detectors with the aim to combine in the same design the best features of RPCs (for the example, their robustness and…

Instrumentation and Detectors · Physics 2015-05-18 P. Fonte , P. Martinengo , E. Nappi , R. Oliveira , V. Peskov , F. Pietropaolo , P. Picchi

Detecting the topology and direction of low-energy nuclear and electronic recoils is broadly desirable in nuclear and particle physics, with applications in coherent elastic neutrino-nucleus scattering, astrophysical neutrino measurements,…

Instrumentation and Detectors · Physics 2024-12-31 Majd Ghrear , Alasdair G. McLean , Hima B. Korandla , Ferdos Dastgiri , Neil J. C. Spooner , Sven E. Vahsen

The collected charge of two pad diodes is measured along the diode width using a 5:2 GeV electron beam at the DESY II beam test facility. The electron beam enters parallel to the readout electrode plane and perpendicular to the edge of the…

Instrumentation and Detectors · Physics 2021-12-16 Mohammadtaghi Hajheidari , Erika Garutti , Joern Schwandt , Aliakbar Ebrahimi

In this paper, the design and the performance of two prototype detectors based on Micromegas technology with a pad readout geometry is discussed. In addition, two alternative implementations of a spark-resistent protection layer on top of…

Instrumentation and Detectors · Physics 2015-06-04 Tai-Hua Lin , Andreas Düdder , Matthias Schott , Chrysostomos Valderanis

With the development of the circular collider, it is necessary to make accurate physics experimental measurements of particle properties at higher luminosity $Z$ pole. Micro-pattern gaseous detectors (MPGDs), which contain Gaseous Electron…

Instrumentation and Detectors · Physics 2021-09-22 Zhiyang Yuan , Huirong Qi , Yue Chang , Ye Wu , Hongyu Zhang , Jian Zhang , Yuanbo Chen , Yiming Cai , Yulan Li , Zhi Deng , Hui Gong

In this work, we have tried to develop a detailed understanding of the physical processes occurring in those variants of Micro Pattern Gas Detectors (MPGDs) that share micro hole and micro strip geometry, like GEM, MHSP and MSGC etc. Some…

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

Accurate measurements of the nanoscale electromechanical coupling in materials, including piezo and ferroelectrics, twisted 2D layers, and biological systems is of both fundamental scientific and applied importance. Piezoresponse Force…

Mesoscale and Nanoscale Physics · Physics 2023-10-10 Roger Proksch , Ryan Wagner , Joel Lefever

We performed a new series of systematic studies of gain and rate characteristics of several micropattern gaseous detectors. Extending earlier studies, these measurements were done at various pressures, gas mixtures, at a wide range of…

Instrumentation and Detectors · Physics 2007-05-23 V. Peskov , P. Fonte , M. Danielsson , C. Iacobaeus , J. Ostling , M. Wallmark

The development of CdZnTe detectors with an orthogpnal coplanar anode structure has important implications for future astrophysical instrumentation. As electron-only devices, like pixel detectors, coplanar anode strip detectors can be…

Astrophysics · Physics 2009-11-06 M. L. McConnell , L. A. Hamel , J. R. Macri , M. McClish , J. R. Ryan

Large-Area Picosecond Photo-Detectors (LAPPDs) show great potential for expanding the performance envelope of Micro-Channel Plates (MCPs) to areas of up to 20 x 20 cm and larger. Such scaling introduces new challenges, including how to meet…

Instrumentation and Detectors · Physics 2018-05-04 Glenn R. Jocher , Matthew J. Wetstein , Bernhard Adams , Kurtis Nishimura , Shawn M. Usman

This paper introduces simple analytical formulas for the grid impedance of electrically dense arrays of square patches and for the surface impedance of high-impedance surfaces based on the dense arrays of metal strips or square patches over…

With the tenfold luminosity increase envisaged at the HL-LHC, the background (photons, neutrons, ...) and the event pile-up probability are expected to increase in proportion in the different experiments, especially in the forward regions…