Advances in the Micro-Hole & Strip Plate gaseous detector

• Author(s): Maia, J. M. ; Veloso, J. F. C. A. ; Santos, J. M. F. dos ; Breskin, A. ; Chechik, R. ; Mörmann, D.
• Date: 2003
• Persistent ID: http://hdl.handle.net/10316/4478
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Micro-strip gas counter; Gas electron multiplier; Micro-Hole & Strip Plate gas detector; Photosensor
• Document Type: Article
• Language: English

Description

We report on the performance of a new gaseous electron multiplier: the Micro-Hole & Strip Plate (MHSP). It consists of two independent charge-amplification stages in a single, double-sided micro-structured electrode, deposited on a thin insulating substrate. Charge gains in excess of 103 were obtained in a MHSP operated with soft X-rays in Ar/CO2 (70/30). We present the results of a systematic study of the MHSP properties and those of a double-stage GEM+MHSP multiplier. Applications to gaseous photomultipliers are discussed. http://www.sciencedirect.com/science/article/B6TJM-48GF7W8-1/1/9ca82a7819a2c55a59c29ed0a8803a99