MightyPix at the LHCb Mighty Tracker — verification of an HV-CMOS pixel chip's digital readout



Scherl, S ORCID: 0000-0003-0528-2724, Striebig, N ORCID: 0000-0002-1156-654X, Hennessy, K ORCID: 0000-0002-1529-8087, Perić, I and Vilella, E ORCID: 0000-0002-7865-2856
(2024) MightyPix at the LHCb Mighty Tracker — verification of an HV-CMOS pixel chip's digital readout. Journal of Instrumentation, 19 (04). C04045-C04045.

[img] PDF
Scherl_2024_J._Inst._19_C04045.pdf - Open Access published version

Download (1MB) | Preview

Abstract

<jats:title>Abstract</jats:title> <jats:p>MightyPix is a high voltage complementary metal-oxide-semiconductor (HV-CMOS) active pixel sensor, currently being developed for the Mighty Tracker, an upgrade proposed for LHCb in anticipation of the High Luminosity LHC. To ensure that MightyPix will be able to handle the particle hit rates at the Mighty Tracker, which are expected to reach 17 MHz/cm<jats:sup>2</jats:sup>, simulations of the chip's digital readout mechanism were performed. Using simulated particle hits the chip's performance within the LHCb environment is characterised. For this, a behavioural model of the first prototype, MightyPix1, representing the analogue pixel matrix, together with the synthesised digital logic is used. Simulation results show the MightyPix1 readout mechanism having an efficiency over 99 % up to 20 MHz/cm<jats:sup>2</jats:sup>. The bottleneck was found to be the speed at which the hits are read out. This yielded new design ideas to improve the readout for MightyPix2, leading to an efficiency of over 99 % up to 30 MHz/cm<jats:sup>2</jats:sup>.</jats:p>

Item Type: Article
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 02 May 2024 15:30
Last Modified: 04 May 2024 02:35
DOI: 10.1088/1748-0221/19/04/c04045
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3180763