Exposing a fibre-based dual-readout calorimeter to a positron beam

Ampilogov, N.; Cometti, S.; Agarwala, J.; Chmill, Valery; Ferrari, R.; Gaudio, G.; Giacomelli, P.; Giaz, A.; Karadzhinova-Ferrer, Aneliya; Loeschcke-Centeno, A.; Negri, A.; Pezzotti, L.; Polesello, G.; Proserpio, E.; Ribon, A.; Santoro, R.; Vivarelli, I. (2023) Exposing a fibre-based dual-readout calorimeter to a positron beam. Journal of Instrumentation, 18 (09). ISSN 1748-0221

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Abstract

A prototype of a dual-readout calorimeter using brass capillary tubes surrounding scintillating and clear plastic optical fibres was tested using beams of particles with energies between 10 and 100 GeV produced by the CERN SPS. The scope of the test was to characterise the performance of the tube-based detector response to positrons in terms of response linearity, energy resolution, and lateral granularity. After calibrating the detector and processing the output signal to correct for the energy dependency on the particle impact point, the linearity of the measurement was found to be better than 1%. The response to positron was compared to that predicted by a Geant4-based simulation, finding good agreement both in terms of energy resolution and shower profile. These results confirm the validity of the tube-based mechanical option and SiPM readout as a promising one for future developments.

Item Type:	Article
Uncontrolled Keywords:	calorimeter methods; positron beam
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Centre for detectors, sensors and electronics
Depositing User:	Lorena Palameta
Date Deposited:	17 Mar 2026 15:39
URI:	http://fulir.irb.hr/id/eprint/11360
DOI:	10.1088/1748-0221/18/09/P09021

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