Performance of a tracking device based on the GEM scintillation

• Autor(es): Fraga, F. A. F. ; Margato, L. M. S. ; Fetal, S. T. G. ; Marques, R. Ferreira ; Policarpo, A. J. P. L.
• Data: 2002
• Identificador Persistente: http://hdl.handle.net/10316/12909
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Alpha particle; Gas electron multiplier; Tracking charge-coupled device (CCD)
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

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