The Opal reactor is a research reactor located in Australia, specifically at the Australian Nuclear Science and Technology Organisation (ANSTO) site in Lucas Heights, New South Wales. It is primarily used for neutron scattering experiments, medical isotope production, and materials testing. The reactor operates at a low power level, making it suitable for various scientific research applications. Commissioned in 2006, the Opal reactor is one of the most advanced research reactors in the world. It utilizes high-enriched uranium fuel and has a unique design that allows for efficient neutron production. The reactor supports both domestic and international research initiatives, contributing to advancements in fields such as medicine, materials science, and nuclear physics.