Developments of an optical readout for imaging Micro-Pattern-Gas-Detectors

by Filippo Resnati (CERN)

Friday 29 Apr 2016, 11:00 → 12:00 Europe/Zurich

40/S2-B01 - Salle Bohr (CERN)

Micro-Pattern Gaseous Detectors (MPGDs) are devices often used for charge particle tracking, as exemplified at the LHC experiments. In recent years, these devices found applications beyond high energy physics mainly due to their imaging capabilities. The small amount of ionisation charge produced by interacting particles is amplified, and typically the signals are read out electronically. An alternative to this approach is the optical readout: in certain conditions, the gaseous detector behaves like a scintillating plate with extraordinary light yield, and the light can be detected, for instance, with a camera. This robust and versatile device is ideal for imaging purposes and can find several applications, for instance x-ray radiography and fluoroscopy, energy-resolved photon counting, and x-ray crystallography. A brief review of the most relevant scintillation processes of gases will be presented. The focus will then be put on the recent progress of the developments at CERN. The seminar will give an overview of the MPGD applications for imaging purposes, and the prospects of the actual developments.

detectorSeminar.pdf

detectorSeminar.pptx