MPGD-based photon detector upgrade for COMPASS RICH

G. Hamar, S. Dalla Torre, F. Tessarotto, S. Levorato, S. S. Dasgupta, C. D.R. Azevedo

Research output: Contribution to journalArticle

Abstract

The RICH detector of the COMPASS Experiment at CERN SPS is undergoing an important upgrade: the central MWPC-based photon detectors have been replaced with novel Micropattern detectors, to cope with the challenging efficiency and stability requirements of the new COMPASS measurements. The new hybrid MPGD detector consists of two layers of ThickGEMs and a capacitive bulk Micromegas. Photoconversion takes place on the CsI layer deposited onto the first ThickGEM, while position information and signals are read out from the pad-segmented anode via capacitive coupling by analog front-end electronics based on APV25 chips. The paper focuses on the main issues of production, detailed quality assessment technique, and the commissioning status of the first in-experiment MPGD-based photon detectors for RICH application.

Original languageEnglish
Article numberC07026
JournalJournal of Instrumentation
Volume12
Issue number7
DOIs
Publication statusPublished - Jul 17 2017

Fingerprint

COMPASS (programming language)
Photon
Photons
Detector
Detectors
detectors
photons
Commissioning
Quality Assessment
Experiment
Anodes
anodes
Chip
Electronic equipment
Experiments
chips
Electronics
analogs
Analogue
requirements

Keywords

  • Cherenkov detectors
  • Gaseous detectors
  • Micropattern gaseous detectors (MSGC GEM THGEM RETHGEM MHSP MICROPIC MICROMEGAS InGrid etc)
  • Photon detectors for UV visible and IR photons (gas)

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

Cite this

Hamar, G., Torre, S. D., Tessarotto, F., Levorato, S., Dasgupta, S. S., & Azevedo, C. D. R. (2017). MPGD-based photon detector upgrade for COMPASS RICH. Journal of Instrumentation, 12(7), [C07026]. https://doi.org/10.1088/1748-0221/12/07/C07026

MPGD-based photon detector upgrade for COMPASS RICH. / Hamar, G.; Torre, S. Dalla; Tessarotto, F.; Levorato, S.; Dasgupta, S. S.; Azevedo, C. D.R.

In: Journal of Instrumentation, Vol. 12, No. 7, C07026, 17.07.2017.

Research output: Contribution to journalArticle

Hamar, G, Torre, SD, Tessarotto, F, Levorato, S, Dasgupta, SS & Azevedo, CDR 2017, 'MPGD-based photon detector upgrade for COMPASS RICH', Journal of Instrumentation, vol. 12, no. 7, C07026. https://doi.org/10.1088/1748-0221/12/07/C07026
Hamar G, Torre SD, Tessarotto F, Levorato S, Dasgupta SS, Azevedo CDR. MPGD-based photon detector upgrade for COMPASS RICH. Journal of Instrumentation. 2017 Jul 17;12(7). C07026. https://doi.org/10.1088/1748-0221/12/07/C07026
Hamar, G. ; Torre, S. Dalla ; Tessarotto, F. ; Levorato, S. ; Dasgupta, S. S. ; Azevedo, C. D.R. / MPGD-based photon detector upgrade for COMPASS RICH. In: Journal of Instrumentation. 2017 ; Vol. 12, No. 7.
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