Overview

To cope with the new running conditions in the ALICE experiment at the Large Hadron Collider at CERN, a new integrated circuit named SAMPA has been created that can process 32 analogue channels, convert them to digital, perform filtering  and compression, and transmit the data on high speed links to the data acquisition system. The main purpose of this work is to specify, design, test and verify the digital signal processing part of the SAMPA device to accommodate the requirements of the detectors involved. Innovative solutions have been employed to reduce the bandwidth required by the detectors, as well as adaptations to ease data handling later in the processing chain. The new SAMPA device was built to replace two existing circuits, in addition to reducing the current consumption, and doubling the amount of processing channels. About 50000 of the devices will be installed in the Time Projection Chamber and Muon Chamber detectors in the ALICE experiment.

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9783030715618

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Arild Velure has been working on electronics for particle detectors since 2010. He received his Bachelor of Engineering within the subject of electronics from the University College of Bergen in 2009 and his Masters in Physics within the subject of microelectronics from the University of Bergen in 2011. Velure was accepted for a Ph.D. stipend in spring 2013 at the University of Bergen. He was awarded his Ph.D. in Physics in spring 2019 for his work on the design of the SAMPA chip. He is now working as a fellow for the CERN ALICE Inner Tracker System.

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