Setting-up and calibration of the ALICE Silicon Pixel Detector

Ferretti, Roberta (2010) Setting-up and calibration of the ALICE Silicon Pixel Detector. Il nuovo cimento C, 33 (6). pp. 263-264. ISSN 1826-9885

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The Silicon Pixel Detector (SPD) forms the two innermost layers of the Inner Tracking System (ITS) of the ALICE experiment at LHC. The SPD is the closest detector to the interaction point and therefore it is one of the key detectors for tracking and vertexing capabilities. The SPD is based on hybrid silicon pixel detectors. The detector element, called ladder, consists of a two-dimensional sensor matrix of 256 × 160 pixel cells bump bonded to 5 ALICE1LHCb front-end chips. The SPD contains 240 ladders and 1200 front-end chips for a total of about 9.8 · 106 channels. The detector response can be optimized by tuning the configuration of several 8-bit DACs embedded in the front-end chip. In this contribution the detector setup and calibration procedures aiming to optimize the detector performance are presented together with the results based on the use of the on-chip programmable amplitude pulser.

Item Type: Article
Uncontrolled Keywords: Tracking and position-sensitive detectors
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 03 Apr 2020 14:20
Last Modified: 03 Apr 2020 14:20

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