Low power integrated system for a simultaneous time and energy measurement in the PANDA micro-strip detector

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RiccardiAlberto-2017-05-02.pdf (94.83 MB)

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2017

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http://dx.doi.org/10.22029/jlupub-9752

Abstract

The PANDA experiment is one of the main projects foreseen at the Facility for Antiproton and Ion Research (FAIR). Its task is to measure the products of the reactions between an antiproton beam, with a beam momentum between 1.5 GeV/c and 15 GeV/c, and a proton or nucleon fixed target. In order to acquire data on many physics channels at the same time, it is necessary to have a trigger less experiment.The innermost detector of PANDA is the Micro Vertex Detector (MVD). The MVD has to distinguish secondary vertexes from the primary one. The detector is composed of two structures, the barrels and the disks, equipped with two types of sensors: silicon hybrid pixels and doublesidedsilicon micro strips.The main purpose of this thesis is the design and the first characterisation of PANDA STrip ASIC (PASTA). After a brief overview of the experiment, a complete description of the chip is given. In this part, the motivations that lead to the development of this prototype and the measurement concept are explained. Moreover, the behaviour of all the building blocks, with a particular attention on the analog structures, is shown. In the last part of the thesis the layout, with few details about the implementation of the channels and how the chip was assembled, is described. Finally, after an overview of the experimental setups, the first laboratory analysis of the chip and a preliminary characterisation of a typical channel are reported.

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