Performance of the electromagnetic pixel calorimeter prototype Epical-2

  • The first evaluation of an ultra-high granularity digital electromagnetic calorimeter prototype using 1.0-5.8 GeV/c electrons is presented. The 25×106 pixel detector consists of 24 layers of ALPIDE CMOS MAPS sensors, with a pitch of around 30~μm, and has a depth of almost 20 radiation lengths of tungsten absorber. Ultra-thin cables allow for a very compact design. The properties that are critical for physics studies are measured: electromagnetic shower response, energy resolution and linearity. The stochastic energy resolution is comparable with the state-of-the art resolution for a Si-W calorimeter, with data described well by a simulation model using GEANT and Allpix2. The performance achieved makes this technology a good candidate for use in the ALICE FoCal upgrade, and in general demonstrates the strong potential for future applications in high-energy physics.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Johan AlmeORCiDGND, Rene Barthel, Aart van Bochove, Vyacheslav BorshchovORCiD, Robert Bosley, Anthony van den Brink, Edwin Broeils, Henner BüschingORCiDGND, Viljar Nilsen EikelandORCiD, Ola Slettevoll GrøttvikORCiD, Younghoon HanORCiD, Naomi van der KolkORCiD, J. H. Kim, Taejun KimORCiD, Youngjoon KwonORCiD, Magnus MagerORCiDGND, Qasim Waheed MalikORCiD, Else Okkinga, T. Y. Park, Thomas PeitzmannORCiD, Fabian Pliquett, Maksym ProtsenkoORCiD, Felix ReidtORCiDGND, Sebastiaan van Rijk, Ketil RøedORCiD, Tim Sebastian RogoschinskiORCiDGND, Dieter RöhrichORCiD, Marcel J. RossewijORCiD, G. B. Ruis, Emilie Haugland SolheimORCiD, Ihor TymchukORCiD, Kjetil UllalandORCiD, Nigel Keith WatsonORCiD, Hiroki Yokoyama
URN:urn:nbn:de:hebis:30:3-849734
URL:https://arxiv.org/abs/2209.02511v2
DOI:https://doi.org/10.48550/ARXIV.2209.02511
ArXiv Id:http://arxiv.org/abs/2209.02511v2
Parent Title (English):arXiv
Publisher:arXiv
Document Type:Preprint
Language:English
Date of Publication (online):2022/11/14
Date of first Publication:2022/11/14
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2024/08/12
Issue:2209.02511v2
Edition:Version 2
Page Number:31
HeBIS-PPN:521416299
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International