The OBELIX chip for the Belle II VTX upgrade

Academic Article

Publication Date:

2024

abstract:

The OBELIX depleted monolithic active CMOS pixel sensor (DMAPS) is currently developed for the upgrade of the vertex detector of the Belle II experiment located at Tsukuba/Japan. The pixel matrix of OBELIX is inherited from the TJ-Monopix2 chip, but the periphery includes additional features to improve performance and allow the integration into a larger detector system. The new features include a trigger unit to process trigger signals, a precision timing module and a possibility to transmit low granularity hit information with low latency to contribute to the Belle II trigger. Additionally, low dropout voltage regulators and an ADC to monitor power consumption and substrate temperature is developed. This paper will focus on the trigger contribution capabilities of the OBELIX chip.

Iris type:

1.1 Articolo in rivista

Keywords:

Belle II; Belle II VTX; CMOS Pixel Sensor; Depleted Monolithic Active Pixel Sensor; DMAPS; OBELIX; Particle tracking detectors; Radiation-hard detectors; Trigger; Vertex detector

List of contributors:

Babeluk, M.; Auguste, D.; Barbero, M.; Barrillon, P.; Baudot, J.; Bergauer, T.; Bernlochner, F.; Bertolone, G.; Bespin, C.; Bettarini, S.; Bevan, A.; Bona, M.; Bonis, J.; Bosi, F.; Boudagga, R.; Breugnon, P.; Buch, Y.; Casarosa, G.; Corona, L.; Dingfelder, J.; Dorokhov, A.; Dujany, G.; Finck, C.; Forti, F.; Frey, A.; Fougeron, D.; Gabrielli, A.; Gaioni, L.; Giroletti, S.; Hara, K.; Higuchi, T.; Himmi, A.; Howgill, D.; Irmler, C.; Jeans, D.; Kaliyar, A. B.; Karagounis, M.; Kishishita, T.; Kruger, H.; Kumar, A.; Lacasta, C.; Marinas, C.; Massa, M.; Massaccesi, L.; Mazorra de Cos, J.; Minuti, M.; Moggi, A.; Mondal, S.; Morel, F.; Nakamura, K. R.; Okazaki, Y.; Onuki, Y.; Pangaud, P.; Peinaud, Y.; Pham, H.; Pilsl, B.; Ratti, L.; Re, V.; Riceputi, E.; Ripp-Baudot, I.; Rizzo, G.; Schall, L.; Schwanda, C.; Schwenker, B.; Schwickardi, M.; Sefri, R.; Serrano, J.; Stavroulakis, P.; Traversi, G.; Valin, I.; Vobbilisetti, V.; Vogt, M.; Wang, S.; Winter, M.; Xu, D.

Authors of the University:

RATTI LODOVICO

Handle:

https://iris.unipv.it/handle/11571/1508599

Published in:

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT

Journal