Sehlabaka Qhobosheane

Sehlabaka Qhobosheane heads the software engineering division of the Instrumentation and Information Technology department at iThemba Laboratories for Accelerator Based Sciences (iThemba LABS), a business unit of the National Research Foundation (NRF). He works with a small team of talented software and system engineers who write Data Acquisition as well as control and monitoring software for experimental facilities at the LABS. When he's not whispering to machines you'll find him on chess.com dancing to the Guioco Piano or trying to break down the Berlin.

https://www.linkedin.com/in/sehlabaka-qhobosheane-b6835414

Accepted Talks:

Dolosse: Distributed Physics Data Acquisition System

In this talk we will introduce key concepts and techniques of triggering and nuclear physics data acquisition. We will then discuss the development of a new distributed data acquisition software system developed for the subatomic and materials research experimental facilities at iThemba LABS, using python and open source streaming tools.

The discussion will show how we use Apache kafka to modernise our DAQ systems. Apache Kafka is a distributed messaging system which we use to build a DAQ system that has a multi-producer, multi-consumer model. This discussion will focus on how we use kafka to configure experimental runs, monitor and control the run and the data acquisition of real-time physics events.

We ingest time-series scientific data from dedicated spectroscopy hardware modules, filtering to determine if we have event coincidence between these different modules, build an interesting physics event from this data and exposing it for easy analysis and visualisation through the python ecosystem. By using kafka the need for heavy processing servers/PC’s are eliminated.

iThemba Laboratory for Accelerator-Based Sciences (LABS) is a national infrastructure platform of the National Research Foundation (NRF) specialising in particle accelerator-based sciences and engineering, with offices in Cape Town and Johannesburg. It has a number of particle accelerators used for basic research in material sciences, subatomic physics as well as production of radio-pharmaceuticals for local and international markets