A large area TOF-tracker device based on multi-gap 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.

Keywords

Instrumentation and methods for time-of-flight (TOF) spectroscopy Particle detectors Particle tracking detectors (Gaseous detectors) Resistive-plate chambers

URI

http://hdl.handle.net/10400.22/20299

Citation

Assis, P., Bernardino, A., Blanco, A., Luz, R., Mendes, L., Michel, J., Neiser, A., Pereira, A. M., Pimenta, M., Shellard, R., Traxler, M., Clemêncio, F., Carolino, N., Cunha, O., Ferreira, M. G. S., Fonte, P., Lopes, L., & Loureiro, C. (2016). A large area TOF-tracker device based on multi-gap Resistive Plate Chambers. Journal of Instrumentation, 1-9. https://doi.org/doi:10.1088/1748-0221/11/10/C10002