HKROC: an integrated front-end ASIC to read out photomultiplier tubes for large neutrino experiments

  • Frederic Dulucq
  • , Antoine Beauchêne
  • , Sara Bolognesi
  • , Florent Bouyjou
  • , Denis Carabadjac
  • , Selma Conforti Di Lorenzo
  • , Miroslaw Firlej
  • , Tomasz Fiutowski
  • , Franck Gastaldi
  • , Fabrice Guilloux
  • , Marek Idzik
  • , Christophe de La Taille
  • , Jakub Moron
  • , Jerome Nanni
  • , Benjamin Quilain
  • , Rudolph Rogly
  • , Krzysztof Swientek
  • , Damien Thienpont

Research output: Contribution to journalConference articlepeer-review

Abstract

The HKROC ASIC was originally designed to read out the photomultiplier tubes (PMTs) for the Hyper-Kamiokande (HK) experiment. HKROC is a very innovative ASIC capable to read out a large number of channels satisfying stringent requirements in terms of noise, speed and dynamic range. Each HKROC channel features a low-noise preamplifier and shapers, a 10-bit successive approximation Analog-to-Digital Converter (SAR-ADC) for the charge measurement (up to 2500 pC) and a Time-to-Digital Converter (TDC) for the Time-of-Arrival (ToA) measurement with 25 ps binning. HKROC is auto-triggered and includes all necessary ancillary services as bandgap circuit, PLL (Phase-locked loop) and threshold DACs (Digital to Analog Converters). This presentation will describe the ASIC architecture and the experimental results of the last prototype received in January 2022.

https://doi.org/10.1051/epjconf/202532000037

Original languageEnglish
Article number00037
JournalEPJ Web of Conferences
Volume320
DOIs
Publication statusPublished - 7 Mar 2025
Event20th International Conference on Calorimetry in Particle Physics, CALOR 2024 - Tsukuba, Japan
Duration: 19 May 202424 May 2024

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