Resistive micromegas is now a mature technology for High Energy Physics experiments. In the ATLAS experiment at CERN 128 multilayers large size (similar to 2 m(2)) micromegas chambers will be employed in the upgrade of the Muon Spectrometer (2019/2020), and will operate at moderate hit rate up to about 15 kHz/cm(2) during the phase of High-Luminosity-LHC. Future upgrades and detectors at future accelerators will require operation at rates up to three orders of magnitude higher. In this paper we present the development of micromegas with a small-pads readout (few mm(2) in size) aiming at precision tracking in high rate environment without efficiency loss up to a few MHz/cm(2). The detector layout and the construction technique will be reviewed, along with the first results obtained with radioactive sources. Outlooks on future developments will also be illustrated.
Small-pads resistive micromegas / Alviggi, M; Biglietti, M; Canale, V; Della Pietra, M; Di Donato, C; Franchino, S; Iengo, P; Iodice, M; Petrucci, F; Sekhniaidze, G; Sidiropoulou, O. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 12:(2017). (Intervento presentato al convegno 14th Topical Seminar on Innovative Particle and Radiation Detectors tenutosi a Siena nel 3-6 October, 2016) [10.1088/1748-0221/12/03/C03077].
Small-pads resistive micromegas
Alviggi M;Canale V;Della Pietra M;
2017
Abstract
Resistive micromegas is now a mature technology for High Energy Physics experiments. In the ATLAS experiment at CERN 128 multilayers large size (similar to 2 m(2)) micromegas chambers will be employed in the upgrade of the Muon Spectrometer (2019/2020), and will operate at moderate hit rate up to about 15 kHz/cm(2) during the phase of High-Luminosity-LHC. Future upgrades and detectors at future accelerators will require operation at rates up to three orders of magnitude higher. In this paper we present the development of micromegas with a small-pads readout (few mm(2) in size) aiming at precision tracking in high rate environment without efficiency loss up to a few MHz/cm(2). The detector layout and the construction technique will be reviewed, along with the first results obtained with radioactive sources. Outlooks on future developments will also be illustrated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
