Browsing by Author "Rivetti, Angelo"
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- Design and characterization of the readout ASIC for the BESIII CGEM detectorPublication . Cossio, Fabio; Alexeev, Maxim; Bugalho, Ricardo; Chai, Junying; Cheng, Weishuai; Da Rocha Rolo, Manuel Dionisio; Di Francesco, Agostino; Greco, Michela; Leng, Chongyang; Li, Huaishen; Maggiora, Marco; Marcello, Simonetta; Mignone, Marco; Rivetti, Angelo; Varela, Joao; Wheadon, RichardTIGER (Turin Integrated Gem Electronics for Readout) is a mixed-mode ASIC for the readout of signals from CGEM (Cylindrical Gas Electron Multiplier) detector in the upgraded inner tracker of the BESIII experiment, carried out at BEPCII in Beijing. The ASIC includes 64 channels, each of which features a dual-branch architecture optimized for timing and energy measurement. The input signal time-of-arrival and charge measurement is provided by low-power TDCs, based on analogue interpolation techniques, and Wilkinson ADCs, with a fully-digital output. The silicon results of TIGER first prototype are presented showing its full functionality.
- Laboratory and beam test results of TOFFEE ASIC and ultra fast silicon detectorsPublication . Arcidiacono, Roberta; Cartiglia, Nicolo; Cenna, Francesca; Da Rocha Rolo, Manuel Dionisio; Di Francesco, Agostino; Fausti, Federico; Mignone, Marco; Olave, Elias; Rastreiro Da Silva, Jose Carlos; Rivetti, Angelo; Silva, Rui; Varela, JoaoIn this report we present measurements performed on the full custom ASIC TOFFEE, designed to pre-amplify and discriminate signals of Ultra Fast Silicon Detectors. The ASIC has been characterized in laboratory with custom test boards, and with infrared laser light hitting the sensor emulating a minimum ionizing particle signal. Laser measurements show that a jitter term better than 50 (40) ps is achievable with a 10 (12) fC input charge.We also present some preliminary results on the TOFFEE performances, as obtained during recent beam tests with a 180 GeV/c pion beam, on the SPS-H8 beam line at CERN.