Development of high-rate timing RPCs

• Author(s): Lopes, L. ; Marques, R. Ferreira ; Fonte, P. ; Pereira, A. ; Peskov, V. ; Policarpo, A.
• Date: 2004
• Persistent ID: http://hdl.handle.net/10316/4433
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): High-rate
• Document Type: Article
• Language: English

Description

For many applications of RPCs to time-of-flight counters in heavy ion experiments the expansion to much higher values of the counting rate capability, so far limited to around 2 kHz/cm2 is of fundamental importance. To address this issue we developed single-gap timing RPCs with resistive electrodes made from a commercially available plastic material. Tests performed in photon beams yielded a time resolution around 90 ps [sigma], essentially unchanged from 2 kHz/cm2 to 27 kHz/cm2. This result establishes the basic feasibility of timing measurements with RPCs at rates of tens of kHz/cm2, keeping a time resolution below 100 ps [sigma] and using plastic electrode materials. http://www.sciencedirect.com/science/article/B6TJM-4CXHH16-1/1/294a04bd430f914a4663436357d765de