New high count rate and large area detectors are needed for future spallation neutron sources. Indeed, the 3He-shortage limits the use of 3He tubes in present and future applications where large areas (several m2) and high efficiency (>50%) detectors are envisaged. In this framework, GEM (Gas Electron Multiplier) is one of the explored detector technologies. GEMs features good spatial...
A high resolution X-ray imaging gaseous detector has been successfully developed with Glass GEM. The imaging system consists of a chamber filled with scintillating gas (Ar/CF4, Kr/CF4, Xe/CF4), inside of which Glass GEM (G-GEM) is mounted for high gain gas multiplication. Since the gas gain of the G-GEM is much higher compared to conventional GEMs, ultra high yield scintillation photons are...
This work presents the design and development of cloud computing services for Quality Assurance in GEM-foils (electrodes of a GEM-like detector) through the analysis of high resolution images. The platform analyzes images uploaded from anywhere through the web and executes an automatic measurement of the micro holes geometry presented in the GEM-foils, in order to detect and quantify different...
Emanuel Pollacco a , Rui De Oliveira b, Bertrand Mehl b, Olivier Pizzirusso b , Mariam Kebbiri a and Esther Ferrer Ribas a
a) IRFU/SPhN & SEDI, CEA SAclay, 91191 Gif-sur-Yvette, France
b) CERN MPGD lab. Section EP-DT-EF, CERN Meyrin,
Over the last five years we have been developing instruments based on Micro Pattern Gas Detectors, MPGD specifically designed for Astro and Nuclear Physics...
During the last decade, a major improvement in the field of the Micro-Pattern
Gaseous Detectors has been reached by adding a layer of resistive strips above the readout strips to reduce drastically the effect of discharges. The resistive strips are separated from the readout strips by a thin layer of insulator. When the detector is operated at high rate some gain reduction is observed over the...
A combination Time Projection Chamber-Cherenkov prototype detector has been developed for consideration at a future Electron Ion Collider and was tested at the Fermilab test beam facility in April 2016. The purpose of the test was to provide a proof of principle, demonstrating that the detector is able to measure particle tracks and provide particle identification within a common volume. The...