/ Instrumentation

Frontend electronics for high-precision single photo-electron timing using FPGA-TDCs

Cardinali, M. (Helmholtz Inst., Mainz) ; Dzyhgadlo, R. (Darmstadt, GSI) ; Gerhardt, A. (Darmstadt, GSI) ; Götzen, K. (Darmstadt, GSI) ; Hohler, R. (Darmstadt, GSI) ; Kalicy, G. (Darmstadt, GSI) ; Kumawat, H. (Darmstadt, GSI) ; Lehmann, D. (Darmstadt, GSI) ; Lewandowski, B. (Darmstadt, GSI) ; Patsyuk, M. (Darmstadt, GSI) ; Peters, K. (Darmstadt, GSI) ; Schepers, G. (Darmstadt, GSI) ; Schmitt, L. (Darmstadt, GSI) ; Schwarz, C. (Darmstadt, GSI) ; Schwiening, J. (Darmstadt, GSI) ; Traxler, M. (Darmstadt, GSI) ; Ugur, C. (Darmstadt, GSI) ; Zühlsdorf, M. (Darmstadt, GSI) ; Dodokhov, V.Kh. (Dubna, JINR) ; Britting, A. (Erlangen - Nuremberg U.) ; Eyrich, W. (Erlangen - Nuremberg U.) ; Lehmann, A. (Erlangen - Nuremberg U.) ; Uhlig, F. (Erlangen - Nuremberg U.) ; Düren, M. (Giessen U.) ; Föhl, K. (Giessen U.) ; Hayrapetyan, A. (Giessen U.) ; Kröck, B. (Giessen U.) ; Merle, O. (Giessen U.) ; Rieke, J. (Giessen U.) ; Cowie, E. (Glasgow U.) ; Keri, T. (Glasgow U.) ; Montgomery, R. (Glasgow U.) ; Rosner, G. (Glasgow U.) ; Achenbach, P. (Mainz U., Inst. Kernphys.) ; Corell, O. (Mainz U., Inst. Kernphys.) ; Ferretti Bondy, M.I. (Mainz U., Inst. Kernphys.) ; Hoek, M. (Mainz U., Inst. Kernphys.) ; Lauth, W. (Mainz U., Inst. Kernphys.) ; Rosner, C. (Mainz U., Inst. Kernphys.) ; Sfienti, C. (Mainz U., Inst. Kernphys.) ; Thiel, M. (Mainz U., Inst. Kernphys.) ; Bühler, P. (Stefan Meyer Inst. Subatomare Phys.) ; Gruber, L. (Stefan Meyer Inst. Subatomare Phys.) ; Marton, J. (Stefan Meyer Inst. Subatomare Phys.) ; Suzuki, K. (Stefan Meyer Inst. Subatomare Phys.)

Published in: Nucl.Instrum.Meth.
Year: 2014
Vol.: A766
Page No: 231-234
Pages: 3
Year: 2014-12-01 published

Abstract: The next generation of high-luminosity experiments requires excellent particle identification detectors which calls for Imaging Cherenkov counters with fast electronics to cope with the expected hit rates. A Barrel DIRC will be used in the central region of the Target Spectrometer of the planned PANDA experiment at FAIR. A single photo-electron timing resolution of better than 100 ps is required by the Barrel DIRC to disentangle the complicated patterns created on the image plane. R&D studies have been performed to provide a design based on the TRB3 readout using FPGA-TDCs with a precision better than 20 ps RMS and custom frontend electronics with high-bandwidth pre-amplifiers and fast discriminators. The discriminators also provide time-over-threshold information thus enabling walk corrections to improve the timing resolution. Two types of frontend electronics cards optimised for reading out 64-channel PHOTONIS Planacon MCP-PMTs were tested: one based on the NINO ASIC and the other, called PADIWA, on FPGA discriminators. Promising results were obtained in a full characterisation using a fast laser setup and in a test experiment at MAMI, Mainz, with a small scale DIRC prototype.

Keyword(s): Fast timing ; Single photo-electron ; Frontend electronics

Total numbers of views: 556
Numbers of unique views: 300
DOI: 10.1016/j.nima.2014.04.071
 Record created 2014-12-01, last modified 2014-12-01

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