English

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

Instrumentation and Detectors 2022-10-26 v2 High Energy Physics - Experiment

Abstract

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 30×30μm2\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.

Keywords

Cite

@article{arxiv.2207.01815,
  title  = {Results from the EPICAL-2 Ultra-High Granularity Electromagnetic Calorimeter Prototype},
  author = {T. Peitzmann and J. Alme and R. Barthel and A. van Bochove and V. Borshchov and R. Bosley and A. van den Brink and E. Broeils and H. Büsching and V. N. Eikeland and O. S. Groettvik and Y. H. Han and N. van der Kolk and J. H. Kim and T. J. Kim and Y. Kwon and M. Mager and Q. W. Malik and E. Okkinga and T. Y. Park and F. Pliquett and M. Protsenko and F. Reidt and S. van Rijk and K. Røed and T. S. Rogoschinski and D. Röhrich and M. Rossewij and G. B. Ruis and E. H. Solheim and I. Tymchuk and K. Ullaland and N. Watson and H. Yokoyama},
  journal= {arXiv preprint arXiv:2207.01815},
  year   = {2022}
}

Comments

Proceedings to PM2021 - The 15. PISA Meeting on Advanced Detectors, updated after referee review

R2 v1 2026-06-24T12:14:02.907Z