Luminescence and imaging with gas electron multipliers

• Author(s): Fraga, F. A. F. ; Margato, L. M. S. ; Fetal, S. T. G. ; Fraga, M. M. F. R. ; Marques, R. Ferreira ; Policarpo, A. J. P. L.
• Date: 2003
• Persistent ID: http://hdl.handle.net/10316/4464
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): GEM detectors; Microstructures; Scintillation
• Document Type: Article
• Language: English

Description

Although the GEM has been mainly used as a gaseous preamplifier device, it has been shown that using suitable gaseous mixtures the avalanches emit a large number of photons, in the UV, visible and/or NIR bands. This scintillation, readout by CCDs, has been used recently for the development of imaging detectors to be used with X-rays, alpha particles and neutrons. The luminescence process in the GEM and a summary of its applications will be presented. The latest developments, including the operation of the GEMs in photon counting mode, will also be referred. http://www.sciencedirect.com/science/article/B6TJM-49FGX8X-B/1/95c4ce32cbe642552741e1461297c1de