| Article | |
| Report number | arXiv:2209.02511 |
| Title | Performance of the Electromagnetic Pixel Calorimeter Prototype EPICAL-2 |
| Author(s) | Alme, J. (Bergen U.) ; Barthel, R. (Nikhef, Amsterdam) ; van Bochove, A. (Nikhef, Amsterdam) ; Borshchov, V. (Unlisted, RU ; BITP, Kiev) ; Bosley, R. (Birmingham U.) ; Brink, A. van den (Nikhef, Amsterdam) ; Broeils, E. (Nikhef, Amsterdam) ; Büsching, H. (Frankfurt U., Inst. Kernphys.) ; Eikeland, V.N. (Bergen U.) ; Groettvik, O.S. (Bergen U.) ; Han, Y.H. (Yonsei U.) ; van der Kolk, N. (Nikhef, Amsterdam ; Oslo U.) ; Kim, J.H. (Yonsei U.) ; Kim, T.J. (Yonsei U.) ; Kwon, Y. (Yonsei U.) ; Mager, M. (CERN) ; Malik, Q.W. (Oslo U.) ; Okkinga, E. (Nikhef, Amsterdam) ; Park, T.Y. (Yonsei U.) ; Peitzmann, T. (Nikhef, Amsterdam) ; Pliquett, F. (Frankfurt U., Inst. Kernphys.) ; Protsenko, M. (Unlisted, RU ; BITP, Kiev) ; Reidt, F. (CERN) ; van Rijk, S. (Nikhef, Amsterdam) ; Røed, K. (Oslo U.) ; Rogoschinski, T.S. (Frankfurt U., Inst. Kernphys.) ; Röhrich, D. (Bergen U.) ; Rossewij, M.J. (Nikhef, Amsterdam) ; Ruis, G.B. (Nikhef, Amsterdam) ; Solheim, E.H. (Bergen U. ; Oslo U.) ; Tymchuk, I. (Unlisted, RU ; BITP, Kiev) ; Ullaland, K. (Bergen U.) ; Watson, N.K. (Birmingham U.) ; Yokoyama, H. (Nikhef, Amsterdam ; Oslo U.) |
| Publication | 2023-01-31 |
| Imprint | 2022-09-06 |
| Number of pages | 30 |
| Note | 30 pages, 19 figures, submitted to JINST |
| In: | JINST 18 (2023) P01038 |
| DOI | 10.1088/1748-0221/18/01/P01038 |
| Subject category | Particle Physics - Experiment ; Detectors and Experimental Techniques |
| Abstract | The first evaluation of an ultra-high granularity digital electromagnetic calorimeter prototype using 1.0-5.8 GeV/c electrons is presented. The $25\times10^6$ pixel detector consists of 24 layers of ALPIDE CMOS MAPS sensors, with a pitch of around 30 $\mu$m, 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 Allpix$^2$. 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. |
| Copyright/License | preprint: (License: CC BY 4.0) publication: © 2023-2024 CERN (License: CC-BY-4.0) |
Corresponding record in: Inspire
Record created 2022-09-23, last modified 2024-10-02