Micro-hole and strip plate-based photosensor

• Autor(es): Freitas, E. D. C. ; Veloso, J. F. C. A. ; Breskin, A. ; Chechik, R. ; Amaro, F. D. ; Ferreira, L. F. Requicha ; Maia, J. M. ; Santos, J. M. F. dos
• Data: 2007
• Identificador Persistente: http://hdl.handle.net/10316/4355
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): CsI photocathode; Noble gas scintillation
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

The performance of a new VUV photosensor, based on an micro-hole and strip plate (MHSP) electron multiplier with a CsI photocathode deposited on its top electrode, is described. This photosensor presents gains above 104 when operating in an Ar-5%Xe gas mixture at 1 atm. Although the gain of a single MHSP is not sufficient for efficient detection of single photons, this simple UV photosensor may be useful for the detection of higher light levels, such as primary- and secondary scintillation in noble gases. http://www.sciencedirect.com/science/article/B6TJM-4NRK4D4-D/1/18d650609693fd3de3e82b0afa663961