The ATLAS collaboration at the Large Hadron Collider at CERN has endorsed the resistive-strip micromegas technology for the high luminosity upgrade of the first muon station in the high-rapidity region, the so called “New Small Wheel” project. It requires detectors with a spatial resolution of , fully efficient up to a particle rate of . In order to demonstrate that the resistive-strip micromegas technology fulfils these requirements, small resistive bulk micromegas have been studied with radioactive sources and with high energy beams. The micromegas chambers were operated with an Ar+7%CO gas mixture and read out using the APV25 chip. Results on the detection efficiency and the position resolution are presented for track impact angles from 0° to 40°. A position reconstruction method has been developed for inclined tracks, called the “micro-TPC method”. A description of the method along with performance studies is presented. In addition, the impact of the unavoidable presence of pillars and the relative alignment of readout and resistive strips on the micromegas performance has been quantified. In view of the fact that the micromegas detectors will also contribute to the trigger in ATLAS their time response has been studied.

Performance studies of resistive-strip bulk micromegas detectors in view of the ATLAS New Small Wheel upgrade / Alexopoulos, T.; Bianco, M.; Biglietti, M.; Bini, C.; Byszewski, M.; Iakovidis, G.; Iengo, P.; Iodice, M.; Karentzos, E.; Leontsinis, S.; Ntekas, K.; Petrucci, F.; Sekhniaidze, G.; Sidiropoulou, O.; Vanadia, M.; Wotschack, J.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 937:(2019), pp. 125-140. [10.1016/j.nima.2019.04.050]

Performance studies of resistive-strip bulk micromegas detectors in view of the ATLAS New Small Wheel upgrade

Biglietti, M.;Bini, C.;
2019

Abstract

The ATLAS collaboration at the Large Hadron Collider at CERN has endorsed the resistive-strip micromegas technology for the high luminosity upgrade of the first muon station in the high-rapidity region, the so called “New Small Wheel” project. It requires detectors with a spatial resolution of , fully efficient up to a particle rate of . In order to demonstrate that the resistive-strip micromegas technology fulfils these requirements, small resistive bulk micromegas have been studied with radioactive sources and with high energy beams. The micromegas chambers were operated with an Ar+7%CO gas mixture and read out using the APV25 chip. Results on the detection efficiency and the position resolution are presented for track impact angles from 0° to 40°. A position reconstruction method has been developed for inclined tracks, called the “micro-TPC method”. A description of the method along with performance studies is presented. In addition, the impact of the unavoidable presence of pillars and the relative alignment of readout and resistive strips on the micromegas performance has been quantified. In view of the fact that the micromegas detectors will also contribute to the trigger in ATLAS their time response has been studied.
2019
Particle Physics; particle detectors; micro strip gas detectors
01 Pubblicazione su rivista::01a Articolo in rivista
Performance studies of resistive-strip bulk micromegas detectors in view of the ATLAS New Small Wheel upgrade / Alexopoulos, T.; Bianco, M.; Biglietti, M.; Bini, C.; Byszewski, M.; Iakovidis, G.; Iengo, P.; Iodice, M.; Karentzos, E.; Leontsinis, S.; Ntekas, K.; Petrucci, F.; Sekhniaidze, G.; Sidiropoulou, O.; Vanadia, M.; Wotschack, J.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 937:(2019), pp. 125-140. [10.1016/j.nima.2019.04.050]
File allegati a questo prodotto
File Dimensione Formato  
Bini_Micromegas-detectors.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.17 MB
Formato Adobe PDF
4.17 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1280033
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 10
social impact