Heidelberg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 39: Gaseous Detectors 2

T 39.4: Vortrag

Dienstag, 22. März 2022, 17:00–17:15, T-H24

Clock phase calibration of the readout controller of the NSW — •Jonas Roemer¹, Anne Fortman², Michelle Solis³, and Jared Sturdy¹ — ¹Department of Physics and Astronomy, University of California, Irvine — ²Harvard University — ³University of Arizona

ATLAS introduces a new muon detector system for the upcoming Run 3 of the LHC: The New Small Wheel (NSW). The NSW features two detector technologies, the Micromegas and the small Thin Gap Chambers. The front-end boards of both technologies use the same readout controller ASIC (ROC). The purpose of the ROC is, among other things, to receive and route trigger, timing and control (TTC) signals, and to collect the channel hit data and transmit it to the readout system.

The ROC samples the TTC stream with a configurable 40 MHz clock. The phase of this clock must be calibrated to interpret the TTC words correctly. Furthermore, the ROC has two 160 MHz clocks for internal functionality and for sampling the hit data from the VMMs. Both must be calibrated relative to each other.

This talk outlines the electronics architecture and calibration procedure and presents the results.