Author(s)
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Bortfeldt, Jonathan (CERN) ; Brunbauer, F. (CERN) ; David, C. (CERN) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Gallinaro, M. (LIP, Lisbon) ; Garcıa, F. (Helsinki U.) ; Giomataris, I. (IRFU, Saclay) ; Gustavsson, T. (LIDYL, Saclay) ; Guyot, C. (IRFU, Saclay) ; Iguaz, F.J. (IRFU, Saclay) ; Kebbiri, M. (IRFU, Saclay) ; Kordas, K. (Aristotle U., Thessaloniki) ; Legou, P. (IRFU, Saclay) ; Liu, J. (CUST, SKLPDE) ; Lupberger, M. (CERN) ; Manthos, I. (Aristotle U., Thessaloniki) ; Muller, H. (CERN) ; Niaouris, V. (Aristotle U., Thessaloniki) ; Oliveri, E. (CERN) ; Papaevangelou, T. (IRFU, Saclay) ; Paraschou, K. (Aristotle U., Thessaloniki) ; Pomorski, M. (LIST, Saclay) ; Resnati, F. (CERN) ; Ropelewski, L. (CERN) ; Sampsonidis, D. (Aristotle U., Thessaloniki) ; Schneider, T. (CERN) ; Schwemling, P. (IRFU, Saclay) ; Scorsone, E. (LIST, Saclay) ; Sohl, L. (IRFU, Saclay) ; van Stenis, M. (CERN) ; Thuiner, P. (CERN) ; Tsipolitis, Y. (Natl. Tech. U., Athens) ; Tzamarias, S.E. (Aristotle U., Thessaloniki) ; Veenhof, R. (CERN) ; Wang, X. (CUST, SKLPDE) ; White, S. (CERN) ; Zhang, Z. (CUST, SKLPDE) ; Zhou, Y. (CUST, SKLPDE) |
Abstract
| The spatial dependence of the timing performance of the R3809U-50 Micro-Channel-Plate PMT (MCP-PMT) by Hamamatsu was studied in high energy muon beams. Particle position information is provided by a GEM tracker telescope, while timing is measured relative to a second MCP-PMT, identical in construction. In the inner part of the circular active area (radius r$<$5.5\,mm) the time resolution of the two MCP-PMTs combined is better than 10 ps. The signal amplitude decreases in the outer region due to less light reaching the photocathode, resulting in a worse time resolution. The observed radial dependence is in quantitative agreement with a dedicated simulation. With this characterization, the suitability of MCP-PMTs as $\text{t}_\text{0}$ reference detectors has been validated. |