Diamond Detectors for the TOTEM Timing Upgrade
Abstract
This paper describes the design and the performance of the timing detector developed by the TOTEM Collaboration for the Roman Pots (RPs) to measure the Time-Of-Flight (TOF) of the protons produced in central diffractive interactions at the LHC. The measurement of the TOF of the protons allows the determination of the longitudinal position of the proton interaction vertex and its association with one of the vertices reconstructed by the CMS detectors. The TOF detector is based on single crystal Chemical Vapor Deposition (scCVD) diamond plates and is designed to measure the protons TOF with about 50 ps time precision. This upgrade to the TOTEM apparatus will be used in the LHC run 2 and will tag the central diffractive events up to an interaction pileup of about 1. A dedicated fast and low noise electronics for the signal amplification has been developed. The digitization of the diamond signal is performed by sampling the waveform. After introducing the physics studies that will most profit from the addition of these new detectors, we discuss in detail the optimization and the performance of the first TOF detector installed in the LHC in November 2015.
Cite
@article{arxiv.1701.05227,
title = {Diamond Detectors for the TOTEM Timing Upgrade},
author = {TOTEM Collaboration and G. Antchev and P. Aspell and I. Atanassov and V. Avati and J. Baechler and V. Berardi and M. Berretti and E. Bossini and U. Bottigli and M. Bozzo and P. Broulím and A. Buzzo and F. S. Cafagna and M. G. Catanesi and M. Csanád and T. Csörgő and M. Deile and F. De Leonardis and A. D'Orazio and M. Doubek and K. Eggert and V. Eremin and F. Ferro and A. Fiergolski and F. Garcia and V. Georgiev and S. Giani and L. Grzanka and C. Guaragnella and J. Hammerbauer and J. Heino and A. Karev and J. Kašpar and J. Kopal and V. Kundrát and S. Lami and G. Latino and R. Lauhakangas and R. Linhart and M. V. Lokajíček and L. Losurdo and M. Lo Vetere and F. Lucas Rodríguez and D. Lucsányi and M. Macrí and A. Mercadante and N. Minafra and S. Minutoli and T. Naaranoja and F. Nemes and H. Niewiadomski and T. Novák and E. Oliveri and F. Oljemark and M. Oriunno and K. Österberg and P. Palazzi and L. Paločko and V. Passaro and Z. Peroutka and V. Petruzzelli and T. Politi and J. Procházka and F. Prudenzano and M. Quinto and E. Radermacher and E. Radicioni and F. Ravotti and E. Robutti and C. Royon and G. Ruggiero and H. Saarikko and A. Scribano and J. Smajek and W. Snoeys and J. Sziklai and C. Taylor and N. Turini and V. Vacek and J. Welti and P. Wyszkowski and K. Zielinski},
journal= {arXiv preprint arXiv:1701.05227},
year = {2019}
}
Comments
26 pages, 18 figures, 2 tables, submitted for publication to JINST