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Gas Electron Multiplier (GEM) detectors, typically featuring a standard pitch size of 140 $\mu$m and an inner hole diameter of 50 $\mu$m, are extensively utilized in high-energy physics experiments for tracking, triggering, and timing…

High Energy Physics - Experiment · Physics 2025-05-07 Rajiv Gupta , Gauri Devi , Sunidhi Saxena , Arpit Singh , Ajay Kumar

Gas detectors are one of the pillars of the research in fundamental physics. Since many years, a new concept of detectors, the Micro Pattern Gas Detectors, allows to overcome many of the problems of other types of commonly used detectors,…

Micro-pattern gas detectors, such as the Gas Electron Multiplier (GEM) and the Micromegas need narrow high density anode readout elements to achieve good spatial resolution. A high-density anode readout would require an unmanageable number…

Instrumentation and Detectors · Physics 2011-07-19 M. S. Dixit , J. Dubeau , J. -P. Martin , K. Sachs

We report on the results of a new, sealed, Gas Pixel Detector. The very compact design and the absence of the gas flow system, make this detector substantially ready for use as focal plane detector for future X-ray space telescopes. The…

A high-efficiency fast neutron detector prototype based on a triple Gas Electron Multiplier (GEM) detector, which coupled with a novel multi-layered High-Density PolyEthylene (HDPE) as a neutron-to-proton converter for improving the neutron…

Instrumentation and Detectors · Physics 2015-06-19 Xiao-Dong Wang , He-Run Yang , Zhong-Guo Ren , Jun-Wei Zhang , Lei Yang , Chun-Hui Zhang , Ri-Ba-La Ha , Lv-Xing An

The characterization of the electronic structure and chemical states of gases, solids, and liquids can be effectively performed using ambient pressure X-ray photoelectron spectroscopy (AP-XPS). However, the acquisition of electronic and…

Chemical Physics · Physics 2025-03-17 Yang Gu , Zhehao Qiu , Shui Lin , Yong Han , Hui Zhang , Zhi Liu , Jun Cai

An X-ray photoelectric polarimeter based on the Gas Pixel Detector has been proposed to be included in many upcoming space missions to fill the gap of about 30 years from the first (and to date only) positive measurement of polarized X-ray…

IXPE (Imaging X-ray Polarimetry Explorer) is a NASA Small Explorer mission -- in partnership with the Italian Space Agency (ASI) -- dedicated to X-ray polarimetry in the 2--8 keV energy band. The IXPE telescope comprises three grazing…

Instrumentation and Methods for Astrophysics · Physics 2022-08-26 Alessandro Di Marco , Sergio Fabiani , Fabio La Monaca , Fabio Muleri , John Rankin , Paolo Soffitta , Fei Xie , Fabrizio Amici , Primo attinà , Matteo Bachetti , Luca Baldini , Mattia Barbanera , Wayne Baumgartner , Ronaldo Bellazzini , Fabio Borotto , Alessandro Brez , Daniele Brienza , Ciro Caporale , Claudia Cardelli , Rita Carpentiero , Simone Castellano , Marco Castronuovo , Luca Cavalli , Elisabetta Cavazzuti , Marco Ceccanti , Mauro Centrone , Saverio Citraro , Enrico Costa , Elisa D'Alba , Fabio D'Amico , Ettore Del Monte , Sergio Di Cosimo , Niccolò Di Lalla , Giuseppe Di Persio , Immacolata Donnarumma , Yuri Evangelista , Riccardo Ferrazzoli , Luca Latronico , Carlo Lefevre , Pasqualino Loffredo , Paolo Lorenzi , Leonardo Lucchesi , Carlo Magazzù , Guido Magazzù , Simone Maldera , Alberto Manfreda , Elio Mangraviti , Marco Marengo , Giorgio Matt , Paolo Mereu , Massimo Minuti , Alfredo Morbidini , Federico Mosti , Hikmat Nasimi , Barbara Negri , Alessio Nuti , Stephen L. O'Dell , Leonardo Orsini , Matteo Perri , Melissa Pesce-Rollins , Raffaele Piazzolla , Stefano Pieraccini , Maura Pilia , Michele Pinchera , Alessandro Profeti , Simonetta Puccetti , Brian D. Ramsey , Ajay Ratheesh , Alda Rubini , Francesco Santoli , Paolo Sarra , Emanuele Scalise , Andrea Sciortino , Carmelo Sgrò , Gloria Spandre , Marcello Tardiola , Allyn F. Tennant , Antonino Tobia , Alessio Trois , Marco Vimercati , Martin C. Weisskopf , Davide Zanetti , Francesco Zanetti

To solve the discharge of the standard Bulk Micromegas and GEM detector, the GEM-Micromegas detector was developed in Institute of High Energy Physics. Taking into account the advantages of the two detectors, one GEM foil was set as a…

Instrumentation and Detectors · Physics 2015-06-15 YuLian Zhang , HuiRong Qi , BiTao Hu , ShengNan Fan , Bo Wang , Mei Liu , Jian Zhang , RongGuang Liu , GuangCai Chang , Peng Liu , Qun Ouyang , YuanBo Chen , FuTing Yi

In this work we characterized a X-ray position sensitive gaseous detector based in a triple stack of gas electron multipliers (GEM). The readout circuit is divided in 256 strips for each dimension and using a resistive chain interconnecting…

Instrumentation and Detectors · Physics 2019-08-01 Geovane G. A. de Souza , Hugo Natal da Luz

A new gas detector prototype for the upgrade of the focal plane detector of the MAGNEX large-acceptance magnetic spectrometer has been developed and tested in view of the NUMEN project. It has been designed to operate at low gas pressure…

The world's leading directional dark matter experiments currently all utilize low-pressure gas Time Projection Chamber (TPC) technologies. We discuss some of the challenges for this technology, for which balancing the goal of achieving the…

Instrumentation and Detectors · Physics 2024-07-19 N. S. Phan , R. J. Lauer , E. R. Lee , D. Loomba , J. A. J. Matthews , E. H. Miller

Imaging X-ray polarimetry with IXPE has demonstrated the scientific potential of the technique but also revealed the need for significant detector upgrades, particularly with the read-out ASIC that images photoelectron tracks and possibly…

The Gas Electron Multiplier (GEM) technology is based on thin polymer foils cladded with copper on both the sides with a regular matrix of holes. Due to the limited manufacturing capacity of CERN, these GEM foils are now commercially…

Instrumentation and Detectors · Physics 2019-08-09 Mohit Gola , Shivali Malhotra , Ashok Kumar , Md. Naimuddin

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

It is well known and has been shown that the gain performance of Gaseous Electron Multipliers (GEM) depends on the size of the holes. With an optical scanner it is possible to measure the dimensions of the holes, and to predict the…

Instrumentation and Detectors · Physics 2021-04-28 Erik Brücken , Jouni Heino , Timo Hildén , Matti Kalliokoski , Vladyslav Litichevskyi , Raimo Turpeinen , Dezső Varga

In MicroPattern Gas Detectors (MPGD) when the pixel size is below 100 micron and the number of pixels is large (above 1000) it is virtually impossible to use the conventional PCB read-out approach to bring the signal charge from the…

Instrumentation and Detectors · Physics 2015-06-26 R. Bellazzini , F. Angelini , L. Baldini , F. Bitti , A. Brez , L. Latronico , M. M. Massai , M. Minuti , N. Omodei , M. Razzano , C. Sgro , G. Spandre , E. Costa , P. Soffitta

The third generation of the Beijing Electron Spectrometer, BESIII, is an apparatus for high energy physics research. The hunting of new particles and the measurement of their properties or the research of rare processes are sought to…

Instrumentation and Detectors · Physics 2019-04-16 Riccardo Farinelli

This work aims to demonstrate that two arrays of Lumped Element Kinetic Inductance Detectors (LEKIDs), when employed in filled array configuration and separated by an external linear polarizer oriented at 45 degrees, can achieve the…

The development of micropixel gas detectors, capable to image tracks produced in a gas by photoelectrons, makes possible to perform polarimetry of X-ray celestial sources in the focus of grazing incidence X-ray telescopes. HXMT is a mission…