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Design and Characterization of the Readout ASIC for the BESIII CGEM Detector

By Fabio Cossio, Maxim Alexeev, Ricardo Bugalho, Junying Chai, Weishuai Cheng, Manuel Dioniso Da Rocha Rolo, Agostino Di Francesco, Michela Greco, Chongyang Leng, Huaishen Li, Marco Maggiora, Simonetta Marcello, Marco Mignone, Angelo Rivetti, Joao Varela and Richard Wheadon

Abstract

TIGER (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

Topics: Mixed-signal ASIC, GEM detector, TIGER, BESIII
Publisher: 'Sissa Medialab'
Year: 2018
DOI identifier: 10.22323/1.313.0044
OAI identifier: oai:iris.polito.it:11583/2710574

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