A large area TOF-tracker device based on multi-gap Resistive Plate Chambers

• Autor(a) principal: Assis, P.
• Data de Publicação: 2016
• Outros Autores: Bernardino, A., Blanco, A., Luz, R., Mendes, L., Michel, J., Neiser, A., Pereira, A., Pimenta, M., Shellard, R., Traxler, M., Clemêncio, Filomena, Carolino, N., Cunha, O., Ferreira, M., Fonte, P., Lopes, L., Loureiro, C.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.22/20299
• topic: Instrumentation and methods for time-of-flight (TOF) spectroscopy; Particle detectors; Particle tracking detectors (Gaseous detectors); Resistive-plate chambers

The TOF-tracker concept, the simultaneous measurement of accurate time and bi-dimensional space coordinates in a single gaseous detector, has been previously demonstrated. The detector yielded a time resolution of 77 ps σ along with a bi-dimensional position resolution of 38 μm σ over a full active area of 60 × 60 mm2. In here, we report about a large area, 1550 × 1250 mm2, TOF-tracker device, tested by tracking cosmic muons, yielding a position resolution down to 1.33 mm σ, a simultaneous time resolution of 150 ps σ and 92% detection efficiency, over the entire area of the detector. The sub-millimetre electronic resolution of the readout chain suggests that the position resolution here reported could be dominated by non-corrected systematic effects and therefore it could be yet significantly improved.