Performance of the Data Handling Hub readout system for the Belle II pixel detector
Instrumentation and Detectors
2021-08-19 v3 High Energy Physics - Experiment
Abstract
The SuperKEKB accelerator in Tsukuba, Japan is providing ee beams for the Belle II experiment since March 2019. To deal with the aimed peak luminosity being forty times higher than the one recorded at Belle, a pixel detector based on DEPFET technology has been installed. It features a long integration time of 20 s resulting in an expected data rate of 20 GByte/s (160 GBit/s) at a maximum occupancy of 3 %. To deal with this high amount of data, the data handling hub (DHH) has been developed. It contains all necessary functionality for the control and readout of the detector. In this paper we describe the architecture and features of the DHH system. Further we will show the key performance characteristics after one year of operation.
Cite
@article{arxiv.2011.00067,
title = {Performance of the Data Handling Hub readout system for the Belle II pixel detector},
author = {Stefan Huber and Igor Konorov and Dmytro Levit and Stephan Paul and Dominik Steffen},
journal= {arXiv preprint arXiv:2011.00067},
year = {2021}
}