Speaker
Description
The novel G-RWELL Micro Pattern Gaseous Detector (MPGD) is a hybrid configuration that combines two technologies - Gas Electron Multiplier (GEM) and μ-RWELL - to achieve gas gains above 10^4. This makes it a cutting-edge solution for high-precision tracking applications.
The higher gas gain is reached thanks to the inclusion of a single GEM layer for signal pre-amplification, and it enables the use of MPGDs for efficent 2D tracking, supporting a wide range of applications. This technology has been chosen for the ePIC Endcap Trackers to be developed for the Electron-Ion Collider (EIC) at Brookhaven National Laboratory. The Endcap Trackers consist of two pairs of G-RWELL disks, positioned in both the leptonic and the hadronic regions.
The design includes a drift gap of 6 mm and a transfer gap of 3 mm, while a 2D strip “COMPASS-like” readout with a 400 μm pitch ensures a spatial resolution better than 150 μm, even for curved tracks.
This contribution highlights the innovative G-RWELL technology, demonstrating its potential to enhance detector performance in state-of-the-art nuclear physics experiments. Results from a recent test beam campaign (conducted in November 2024 at the PS-T10 East Area at CERN) have been obtained on the spatial resolution and detection efficiency. Prototypes of 10x10 cm^2 were tested for varying angles of incidence between the beam and the detector surface, prooving the high quality of this novel technology performances.
