Speaker
Description
The Target Safety System (TSS) is part of the overall radiation safety plan for the Neutron Factory in the European Spallation source (ESS). The system is designed to stop proton production if vital process conditions measured at the Neutron Factory exceed defined safety boundaries, with the potential to cause unacceptable radiation exposure to third parties (i.e., the public outside ESS).
The TSS is implemented as a three-channel, fail-safe safety system, consisting of independent sensors, a two-train redundant architecture based on relay and safety PLC technologies, and independent mechanisms for stopping the proton beam. This architecture ensures high reliability while supporting verification and validation activities.
The system is now approaching full test completion. In this work, we present results from successful system testing, including integration tests with interfacing systems, performed to the extent allowed by their availability. Particular focus is placed on how the system design supports efficient testing and staged integration.