Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept

Future collider experiments and the upgrade of the existing large-scale experiments impose unprece-dented radiation conditions for the calorimeter systems, particularly in the forward region. The calorimeters envisaged for these operating conditions must be sufficiently radiation-hard and robust in...

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Main Authors: Onel Y., Wetzel J., Bilki B., Aksu E., Bai Y., Cankocak K., Cerci D.S., Cerci S., Dincer G.G., Duran B., Gulmez E., Gurkan G., Hatipoglu S., Kaynak B., Koseyan O., Mestvirishvili A., Ozkorucuklu S., Penzo A., Potok O., Schmidt I., Southwick D., Wan Y., Winn D.
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2025/05/epjconf_calor2024_00006.pdf
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author Onel Y.
Wetzel J.
Bilki B.
Aksu E.
Bai Y.
Cankocak K.
Cerci D.S.
Cerci S.
Dincer G.G.
Duran B.
Gulmez E.
Gurkan G.
Hatipoglu S.
Kaynak B.
Koseyan O.
Mestvirishvili A.
Ozkorucuklu S.
Penzo A.
Potok O.
Schmidt I.
Southwick D.
Wan Y.
Winn D.
author_facet Onel Y.
Wetzel J.
Bilki B.
Aksu E.
Bai Y.
Cankocak K.
Cerci D.S.
Cerci S.
Dincer G.G.
Duran B.
Gulmez E.
Gurkan G.
Hatipoglu S.
Kaynak B.
Koseyan O.
Mestvirishvili A.
Ozkorucuklu S.
Penzo A.
Potok O.
Schmidt I.
Southwick D.
Wan Y.
Winn D.
author_sort Onel Y.
collection DOAJ
description Future collider experiments and the upgrade of the existing large-scale experiments impose unprece-dented radiation conditions for the calorimeter systems, particularly in the forward region. The calorimeters envisaged for these operating conditions must be sufficiently radiation-hard and robust in order to perform as expected for the entire lifetime of the experiments. In this context, a novel calorimeter design utilizing quartz-Cherenkov calorimetry, termed Q-Wall has been developed. The Q-Wall concept is a sampling calorimeter that alternates between plates of absorber (Fe, Pb, W, etc.) and active planes. The active planes comprise compact arrays of PMTs with either very thick quartz windows or fused silica pads optically coupled to traditional PMT windows. In these active elements, charged particles with β > 0.685 produce Cherenkov radiation which im-pinges directly onto the photocathode of the PMT. The Q-Wall concept holds the promise of a very fast and highly granular tracking calorimeter suitable for high radiation environments. A prototype module of Q-Wall was constructed and tested at CERN test beam. The prototype consisted of three photodetector setups: multianode PMTs directly coupled to ultraviolet-transmitting (UVT) plexiglass in a 2 x 2 and 3 x 3 configuration, an 8 x 8 array of SiPMs coupled to a 5 x 5 array of borosilicate glass cubes, and a 3 x 3 array of SiPMs connected to a 3 x 3 array of borosilicate glass cubes. Here we report on the results of these tests and compare them with electromagnetic shower development simulations with Geant4.
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publishDate 2025-01-01
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series EPJ Web of Conferences
spelling doaj-art-0e63bf01d88d488ca6799efb60f3a7762025-08-20T03:05:45ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013200000610.1051/epjconf/202532000006epjconf_calor2024_00006Q-Wall, a Novel Quartz-Cherenkov Calorimeter ConceptOnel Y.0Wetzel J.1Bilki B.2Aksu E.3Bai Y.4Cankocak K.5Cerci D.S.6Cerci S.7Dincer G.G.8Duran B.9Gulmez E.10Gurkan G.11Hatipoglu S.12Kaynak B.13Koseyan O.14Mestvirishvili A.15Ozkorucuklu S.16Penzo A.17Potok O.18Schmidt I.19Southwick D.20Wan Y.21Winn D.22University of IowaUniversity of IowaUniversity of IowaTurkish Energy, Nuclear and Mineral Research AgencyUniversity of IowaIstanbul Technical UniversityIstanbul UniversityIstanbul UniversityIstanbul Technical UniversityIstanbul UniversityBogazici UniversityIstanbul UniversityIstanbul UniversityIstanbul UniversityUniversity of IowaUniversity of IowaIstanbul UniversityUniversity of IowaIstanbul UniversityUniversity of IowaUniversity of IowaUniversity of Notre DameFairfield UniversityFuture collider experiments and the upgrade of the existing large-scale experiments impose unprece-dented radiation conditions for the calorimeter systems, particularly in the forward region. The calorimeters envisaged for these operating conditions must be sufficiently radiation-hard and robust in order to perform as expected for the entire lifetime of the experiments. In this context, a novel calorimeter design utilizing quartz-Cherenkov calorimetry, termed Q-Wall has been developed. The Q-Wall concept is a sampling calorimeter that alternates between plates of absorber (Fe, Pb, W, etc.) and active planes. The active planes comprise compact arrays of PMTs with either very thick quartz windows or fused silica pads optically coupled to traditional PMT windows. In these active elements, charged particles with β > 0.685 produce Cherenkov radiation which im-pinges directly onto the photocathode of the PMT. The Q-Wall concept holds the promise of a very fast and highly granular tracking calorimeter suitable for high radiation environments. A prototype module of Q-Wall was constructed and tested at CERN test beam. The prototype consisted of three photodetector setups: multianode PMTs directly coupled to ultraviolet-transmitting (UVT) plexiglass in a 2 x 2 and 3 x 3 configuration, an 8 x 8 array of SiPMs coupled to a 5 x 5 array of borosilicate glass cubes, and a 3 x 3 array of SiPMs connected to a 3 x 3 array of borosilicate glass cubes. Here we report on the results of these tests and compare them with electromagnetic shower development simulations with Geant4.https://www.epj-conferences.org/articles/epjconf/pdf/2025/05/epjconf_calor2024_00006.pdf
spellingShingle Onel Y.
Wetzel J.
Bilki B.
Aksu E.
Bai Y.
Cankocak K.
Cerci D.S.
Cerci S.
Dincer G.G.
Duran B.
Gulmez E.
Gurkan G.
Hatipoglu S.
Kaynak B.
Koseyan O.
Mestvirishvili A.
Ozkorucuklu S.
Penzo A.
Potok O.
Schmidt I.
Southwick D.
Wan Y.
Winn D.
Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
EPJ Web of Conferences
title Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
title_full Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
title_fullStr Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
title_full_unstemmed Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
title_short Q-Wall, a Novel Quartz-Cherenkov Calorimeter Concept
title_sort q wall a novel quartz cherenkov calorimeter concept
url https://www.epj-conferences.org/articles/epjconf/pdf/2025/05/epjconf_calor2024_00006.pdf
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