EPJ Web Conf.
Volume 245, 202024th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2019)
|Number of page(s)||8|
|Section||2 - Offline Computing|
|Published online||16 November 2020|
System simulations for the ALICE ITS detector upgrade
Western Norway University Of Applied Sciences, Bergen, Norway
2 University of Bergen, Bergen, Norway
3 Universita e INFN, Padova, Italy
4 The University of Texas at Austin, Physics Department, Austin, Texas, United States
5 European Organization for Nuclear Research (CERN), Geneva, Switzerland
* e-mail: firstname.lastname@example.org
Published online: 16 November 2020
The ALICE experiment at the CERN LHC will feature several upgrades for Run 3, one of which is a new Inner Tracking System (ITS). The ITS upgrade is currently under development and commissioning, and will be installed during the ongoing long shutdown 2.
A number of factors will have an impact on the performance and readout efficiency of the ITS in run 3, and to that end, a simulation model of the readout logic in the ALPIDE pixel sensor chips for the ITS was developed, using the SystemC library for system level modeling in C++. This simulation model is three orders of magnitude faster than a normal HDL simulation of the chip and facilitates simulations of an increased number of events for a large portion of the detector.
In this paper, we present simulation results, where we have been able to quantify detector performance under different running conditions. The results are used for system configuration as well as for the ongoing development of the readout electronics.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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