CERN Accelerating science

ATLAS Note
Report number	ATL-ITK-PROC-2018-019
Title	Development and evaluation of prototypes for the Phase-II upgrade of the pixel detector of the ATLAS experiment
Author(s)	Taylor, Jonathan Thomas (University of Liverpool)
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2019
Imprint	18 Dec 2018
Number of pages	2
In:	2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824591
DOI	10.1109/NSSMIC.2018.8824591
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Abstract	The ATLAS tracking system will be replaced by an all-silicon detector in the course of the planned HL-LHC accelerator upgrade around 2025. The innermost five layers of the detector system will be pixel detector layers which will be most challenging in terms of radiation hardness, data rate and readout speed. A serial power scheme will be used for the pixel layers to reduce the radiation length and power consumption in cables. New elements are required to operate and monitor a serially powered detector including a detector control system, constant current sources and front-end electronics with shunt regulators. A prototype for the outer central pixel layers is built to verify the concept and operate multiple serial power chains as a system test. The evaluation of both the readout of multi-modules and mechanical integration are further aims of the prototyping campaign.

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