Design aspects and prototype test of a very precise TDC system implemented for the Multigap RPC of the ALICE-TOF

A.V. Akindinov,A. Alici,F. Anselmo,P. Antonioli, M. Basile,G. Cara Romeo, L. Cifarelli,F. Cindolo,F. Cosenza,I. D'Antone,A. De Caro,S. De Pasquale,A. Di Bartolomeo,M. Fusco Girard,V. Golovine,M. Guerzoni,M. Guida,D. Hatzifotiadou,A.B. Kaidalov,D.H. Kim,D.W. Kim,S.M. Kisselev,G. Laurenti,E. Lioublev,K. Lee,S.C. Lee,M.L. Luvisetto, A. Margotti,A.N. Martemiyanov,F. Massera, S. Meneghini,R. Michinelli,R. Nania, P. Otiougova,G. Pancaldi,A. Pesci,R. Pilastrini,O. Pinazza, P.A. Polozov,M. Rizzi,E. Scapparone,G. Scioli,S. Sellitto,F. Semeria,A.V. Smirnitski,M.M. Tchoumakov,E. Ugolini,E. Usenko,G. Valenti,K.G. Voloshin,M.C.S. Williams,B.V. Zagreev,C. Zampolli, A. Zichichi,M. Zucchini,M. Zuffa

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2004）

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摘要

The ALICE Time-of-Flight system will be a large area (150m2) detector made by Multigap RPC (MRPC). The time digitisation is based on the High Performance TDC chip (HPTDC). Tests carried out on board prototypes are discussed, emphasising the optimisation of the effective time resolution of the chip when working in its Very High Resolution Mode. Lab bench tests and test beam results show that a 20ps resolution has been achieved.

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29.40.Cs,84.30.−r,84.30.Sk

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