Results from the EPICAL-2 Ultra-High Granularity Electromagnetic Calorimeter Prototype

A prototype of a new type of calorimeter has been designed and constructed, based on a silicon-tungsten sampling design using pixel sensors with digital readout. It makes use of the Alpide MAPS sensor developed for the ALICE ITS upgrade. A binary readout is possible due to the pixel size of \(\appro...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2022-09
Main Authors: Peitzmann, T, Alme, J, Barthel, R, A van Bochove, Borshchov, V, Bosley, R, van den Brink, A, Broeils, E, Büsching, H, Eikeland, V N, Groettvik, O S, Han, Y H, van der Kolk, N, Kim, J H, Kim, T J, Kwon, Y, Mager, M, Malik, Q W, Okkinga, E, Park, T Y, Pliquett, F, Protsenko, M, Reidt, F, S van Rijk, Røed, K, Rogoschinski, T S, Röhrich, D, Rossewij, M, Ruis, G B, Solheim, E H, Tymchuk, I, Ullaland, K, Watson, N, Yokoyama, H
Format: Article
Language:English
Subjects:
Energy resolution
Muons
Particle beams
Pixels
Prototypes
Sampling designs
Synchrotrons
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A prototype of a new type of calorimeter has been designed and constructed, based on a silicon-tungsten sampling design using pixel sensors with digital readout. It makes use of the Alpide MAPS sensor developed for the ALICE ITS upgrade. A binary readout is possible due to the pixel size of \(\approx 30 \times 30 \, \mu \mathrm{m}^2\). This prototype has been successfully tested with cosmic muons and with test beams at DESY and the CERN SPS. We report on performance results obtained at DESY, showing good energy resolution and linearity, and compare to detailed MC simulations. Also shown are preliminary results of the high-energy performance as measured at the SPS. The two-shower separation capabilities are discussed.
ISSN:2331-8422
DOI:10.48550/arxiv.2207.01815