Performance of a tracking device based on the GEM scintillation

• Author(s): Fraga, F. A. F. ; Margato, L. M. S. ; Fetal, S. T. G. ; Marques, R. Ferreira ; Policarpo, A. J. P. L.
• Date: 2002
• Persistent ID: http://hdl.handle.net/10316/12909
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Alpha particle; Gas electron multiplier; Tracking charge-coupled device (CCD)
• Document Type: Article
• Language: English

Description

A tracking device based on gas electron multiplier scintillation using a high-resolution cooled charge-coupled device (CCD) camera was developed. The CCD is sensitive to the 400-1000 nm band, and standard glass photographic lenses are used. The active gas is an Ar-CF4 mixture. The prototype detector is described and images of single alpha tracks are presented. The light yield and detector performance for several other gaseous mixtures, such as 4He-CF4, are also investigated