Time performance of a triple-GEM detector at high rate
Abstract
Gaseous detectors are used in high energy physics as trackers or, more generally, as devices for the measurement of the particle position. For this reason, they must provide high spatial resolution and they have to be able to operate in regions of intense radiation, i.e. around the interaction point of collider machines. Among these, Micro Pattern Gaseous Detectors (MPGD) are the latest frontier and allow to overcome many limitations of the pre-existing detectors, such as the radiation tolerance and the rate capability. The gas Electron Multiplier (GEM) is a MPGD that exploits an intense electric field in a reduced amplification region in order to prevent discharges. Several amplification stages, like in a triple-GEM, allow to increase the detector gain and to reduce the discharge probability. Reconstruction techniques such as charge centroid (CC) and micro-Time Projection Chamber (TPC) are used to perform the position measurement. From literature triple-GEMs show a stable behaviour up to Hz/cm. A testbeam with four planar triple-GEMs has been performed at the Mainz Microtron (MAMI) facility and their performance was evaluated in different beam conditions. In this article a focus on the time performance for the TPC clusterization is given and a new measurement of the triple-GEM limits at high rate will be presented.
Cite
@article{arxiv.2004.04944,
title = {Time performance of a triple-GEM detector at high rate},
author = {A. Amoroso and R. Baldini Ferroli and I. Balossino and M. Bertani and D. Bettoni and A. Bortone and A. Calcaterra and S. Cerioni and W. Cheng and G. Cibinetto and A. Cotta Ramusino and F. Cossio and M. Da Rocha Rolo and F. De Mori and A. Denig and M. Destefanis and J. Dong and F. Evangelisti and R. Farinelli and L. Fava and G. Felici and B. Garillon and I. Garzia and M. Gatta and G. Giraudo and S. Gramigna and M. Greco and P. Gülker and Y. P. Guo and W. Lauth and L. Lavezzi and M. Maggiora and R. Malaguti and A. Mangoni and S. Marcello and M. Melchiorri and G. Mezzadri and E. Pace and S. Pacetti and P. Patteri and J. Pellegrino and C. F. Redmer and M. Ripka and A. Rivetti and C. Rosner and M. Scodeggio and S. Sosio and S. Spataro},
journal= {arXiv preprint arXiv:2004.04944},
year = {2020}
}