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A GEM detector with an effective area of 30*30 cm2 has been constructed using an improved self-stretch technique, which enables an easy and fast GEM assembling. The design and assembling of the detector is described. Results from tests of…

Instrumentation and Detectors · Physics 2015-06-19 Wenhao You , Yi Zhou , Cheng Li , Hongfang Chen , Ming Shao , Yongjie Sun , Zebo Tang , Jianbei Liu

We present design and construction of a large low-mass Triple-GEM detector prototype for forward tracking at a future Electron-Ion Collider. In this environment, multiple scattering of forward and backward tracks must be minimized so that…

Instrumentation and Detectors · Physics 2017-11-16 Marcus Hohlmann , Matthew Bomberger , Stefano Colafranceschi , Francisco Jimenez , Mehdi Rahmani , Aiwu Zhang

We present the theory of a new amplification regime in Travelling Wave Tubes (TWTs) composed of a slow-wave periodic structure that supports multiple electromagnetic modes that can all be synchronized with the electron beam. The interaction…

Optics · Physics 2016-04-19 Mohamed Othman , Venkata Ananth Tamma , Filippo Capolino

Compact Free-Electron Lasers (FELs) offering broad, continuous spectral tunability are traditionally constrained by fixed-parameter magnetic structures and the necessity for high-energy electron beams. High-gain Harmonic Lasing (HL) has…

We have developed the gas electron multiplier (GEM) using polytetrafluoroethylene (PTFE) insulator substrate (PTFE-GEM). Carbonization on insulator layer by discharges shorts the GEM electrodes, causing permanent breakdown. Since PTFE is…

Instrumentation and Detectors · Physics 2014-03-27 M. Wakabayashi , K. Komiya , T. Tamagawa , Y. Takeuchi , K. Aoki , A. Taketani , H. Hamagaki

We suggest a new type of an ultrasensitive detector of electromagnetic fields exploiting the giant thermoelectric effect recently found in superconductor/ferromagnet hybrid structures. Compared to other types of superconducting detectors…

Superconductivity · Physics 2018-10-03 T. T. Heikkilä , R. Ojajärvi , I. J. Maasilta , E. Strambini , F. Giazotto , F. Bergeret

The performances of THGEM multipliers in two-phase Xe avalanche mode are presented for the first time. Additional results on THGEM operation in gaseous Xe at cryogenic temperatures are provided. Stable operation of a double-THGEM multiplier…

Instrumentation and Detectors · Physics 2015-03-18 A. Bondar , A. Buzulutskov , A. Grebenuk , E. Shemyakina , A. Sokolov , D. Akimov , I. Alexandrov , A. Breskin

An amplifier has been designed for optimal use of position sensitive thermal neutron detectors using the principle of resistive charge division. The important points in this optimization are: high counting rates and good spatial resolution.…

Instrumentation and Detectors · Physics 2009-11-13 Patrick Van Esch , Thomas Gahl , Bruno Guerard

The idea of implementing electroluminescence-based amplification through transparent multi-hole structures (FAT-GEMs) has been entertained for some time. Arguably, for such a technology to be attractive it should perform at least at a level…

We report the status of R&D on large triple-GEM detectors for a forward tracker (FT) in an experiment at a future Electron Ion Collider (EIC) that will improve our understanding of QCD. We have designed a detector prototype specifically…

Instrumentation and Detectors · Physics 2016-11-17 Aiwu Zhang , Vallary Bhopatkar , Marcus Hohlmann , Xinzhan Bai , Kondo Gnanvo , Nilanga K. Liyanage , Matt Posik , Bernd Surrow

In this paper, a multilayer thermal infrared detector model has been achieved by finite element method (FEM). All contributions of the thermal conductance were taken into account and calculated. In order to maximize the detector response,…

Applied Physics · Physics 2017-12-08 P. Ramos , A. Andrés , A. López , A. Manzanares

The High Energy Physics group of the University of Texas at Arlington Physics Department has been developing Gas Electron Multiplier (GEM) detectors for use as the sensitive gap detector in digital hadron calorimeters (DHCAL) for the future…

Instrumentation and Detectors · Physics 2011-10-20 J. Yu , E. Baldelomar , K. Park , S. Park , M. Sosebee , N. Tran , A. P. White

Two-phase Cryogenic Avalanche Detectors (CRADs) with GEM and THGEM multipliers have become an emerging potential technique for charge recording in rare-event experiments. In this work we present the performance of two-phase CRADs operated…

Instrumentation and Detectors · Physics 2015-03-18 A. Bondar , A. Buzulutskov , A. Dolgov , A. Grebenuk , E. Shemyakina , A. Sokolov , D. Akimov , A. Breskin , D. Thers

The paper summarizes our latest progress in the development of newly introduced micro pattern gaseous detectors with resistive electrodes. These resistive electrodes protect the detector and the front-end electronics in case of occasional…

Instrumentation and Detectors · Physics 2008-11-26 A. Di Mauro , B. Lund-Jensen , P. Martinengo , E. Nappi , R. Oliveira , V. Peskov , L. Periale , P. Picchi , F. Pietropaolo , I. Rodionov , J. C. Santiard

We propose a new paradigm of electronic devices based only on two electrodes separated by a gap, i.e. without any functional element bridging them. We use a tight-binding model to show that, depending on the type of material of the…

Mesoscale and Nanoscale Physics · Physics 2020-01-22 V. M. García-Suárez

The Gas Electron Multiplier detectors with wire and metallic electrodes, with a gas filling in the gap between them were proposed and tested. The main advantage of these Gas Electron Multipliers compared to standard ones consists in their…

Instrumentation and Detectors · Physics 2010-12-22 B. M. Ovchinnikov , V. V. Parusov , Yu. B. Ovchinnikov

The aim of the presented work is the development of single-stage amplification resistive Micro Pattern Gas Detectors (MPGD) based on Micromegas technology with the following characteristics: ability to efficiently operate up to 10…

Impedance matching and heat management are important factors influencing performance of THz sources. In this work we analyze thermal and radiative properties of such devices based on mesa structures of a layered high-temperature…

In this paper we describe the performance of a prototype of the High Angle Time Projection Chambers (HA-TPCs) that are being produced for the Near Detector (ND280) upgrade of the T2K experiment. The two HA-TPCs of ND280 will be instrumented…