Instrumenting full-scale Boron Injection Test Facility to support Atucha-2 NPP licensing

This paper provides an overview of the test facility, with particular emphasis on the Authors' contributions to its design, implementation and operation. Then, it highlights the final outcomes of the experimental campaign carried out by NA-SA, namely: allowing to improve the design of the boron injection system (especially as to some fluid-structure interaction issues) and - what was the main goal - demonstrating that the system's performance is fast enough to assure a timely and safe shutdown of the reactor, thus contributing to the successful completion of the NPP licensing process.