Universitat de Barcelona
The Belle II experiment at KEK in Japan considers an upgrade for the vertex detector system in line with the accelerator upgrade for higher luminosity at long shutdown 2 planned for 2028. One proposal for the upgrade of the vertex detector called VTX aims to improve background robustness and reduce occupancy using small and fast pixels. VTX accommodates the OBELIX depleted monolithic active CMOS pixel sensor (DMAPS) on all five proposed layers. OBELIX is specifically developed for the VTX application and based on the TJ-Monopix2 chip initially developed to meet the requirements of the outer layers of the ATLAS inner tracker (ITk). This paper will review recent tests of the TJ-Monopix2 chip as well as various design aspects of the OBELIX-1 chip currently under development.
English
Detectors; Mesuraments físics; Detectors; Physical measurements
Elsevier B.V.
Versió postprint del document publicat a: https://doi.org/10.1016/j.nima.2024.169428
Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 2024, vol. 1064
https://doi.org/10.1016/j.nima.2024.169428
cc-by-nc-nd (c) Elsevier B.V., 2024
http://creativecommons.org/licenses/by-nc-nd/4.0/
