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HK: Fachverband Physik der Hadronen und Kerne

HK 50: Instrumentation XII

HK 50.3: Vortrag

Mittwoch, 13. März 2024, 18:15–18:30, HBR 19: C 1

Simple readout system of ALICE silicon detectors — •Bent Buttwill for the ALICE Germany collaboration — Physikalisches Institut Universität Heidelberg

The Outer Barrel Module (OBM) used in the the outermost four layers of ALICE Inner Tracking System (ITS2) utilizes interconnected Monolithic Active Pixel Sensors (MAPS) ALPIDE. The operational ITS2 has a surplus of spare modules available which could be used outside of the ALICE experiment. For this, a simpler readout was required to make use of the modules in tabletop experiments.

This talk introduces a readout system using the widely accessible microcontroller RP2040, with communication exclusively managed via the chip's slow control interfaces, enabling full configuration and data readout at reduced rates. A small scale proton-nucleus reaction cross section measurement proposed for 2024 at the Marburger Ionenstrahl-Therapiezentrum (MIT) will greatly profit from the large active area offered by the OBM and from the new readout system.

Keywords: Microcontroller; RP2040; readout; Outer Barrel Module; ALICE