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The OBELIX chip for the Belle II VTX upgrade

Fast facts

  • Internal authorship

  • Further publishers

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

  • Publishment

    • 2024
  • Journal

    Nuclear Instruments and Methods in Physics Research

  • Organizational unit

  • Subjects

    • General electrical engineering
  • Publication format

    Journal article (Article)

Quote

M. Babeluk, D. Auguste, M. Barbero, P. Barrillon, J. Baudot, T. Bergauer, F. Bernlochner, G. Bertolone, C. Bespin, S. Bettarini, A. Bevan, M. Bona, J. Bonis, F. Bosi, R. Boudagga, P. Breugnon, Y. Buch, G. Casarosa, L. Corona, J. Dingfelder, A. Dorokhov, G. Dujany, C. Finck, F. Forti, A. Frey, D. Fougeron, A. Gabrielli, L. Gaioni, S. Giroletti, K. Hara, T. Higuchi, A. Himmi, D. Howgill, C. Irmler, D. Jeans, A. B. Kaliyar, M. Karagounis, T. Kishishita, H. Krüger, A. Kumar, C. Lacasta, C. Marinas, M. Massa, L. Massaccesi, J. Mazorra de Cos, M. Minuti, A. Moggi, S. Mondal, F. Morel, K. R. Nakamura, Y. Okazaki, Y. Onuki, P. Pangaud, Y. Peinaud, H. Pham, B. Pilsl, L. Ratti, V. Re, E. Riceputi, I. Ripp-Baudot, G. Rizzo, L. Schall, C. Schwanda, B. Schwenker, M. Schwickardi, R. Sefri, J. Serrano, P. Stavroulakis, G. Traversi, I. Valin, V. Vobbilisetti, M. Vogt, S. Wang, M. Winter, and D. Xu, "The OBELIX chip for the Belle II VTX upgrade," Nuclear Instruments and Methods in Physics Research, vol. 1067, p. 169659, 2024 [Online]. Available: https://www.sciencedirect.com/science/article/pii/S0168900224005850

Content

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.

Keywords

Belle II

Belle II VTX

CMOS pixel sensor

DMAPS

Depleted Monolithic Active Pixel Sensor

OBELIX

Particle tracking detectors

Radiation-hard detectors

Trigger

Vertex detector

Notes and references

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