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OPAL multipurpose reactor

OPAL multi-purpose reactor

Australia’s Open Pool Australian Lightwater (OPAL) reactor is a state-of-the-art 20 megawatt multi-purpose reactor that uses low enriched uranium (LEU) fuel to achieve a range of  activities to benefit human health, enable research to support a more sustainable environment and provide innovative solutions for industry.

Visitors to ANSTO

Community FAQs

Frequently asked questions about ANSTO for the community.

Opal reactor

OPAL 2024 Shutdown

ANSTO's OPAL reactor is one of the world's most advanced and reliable research reactors today. To ensure we can continue operating OPAL safely and reliably and maximise utilisation, ANSTO must regularly carry out maintenance and upgrades.

OPAL reactor back online after planned long shutdown

ANSTO’s OPAL multi-purpose research reactor at Lucas Heights has officially returned to power and recommenced operations, following a months-long planned shutdown to carry out essential maintenance and upgrades.

Health products customer update archive

Archive

See details of previously published customer updates from our Health products team. 

Smoke pollution

Highlights - Aerosol Sampling

ANSTO has been tracking and publishing data on fine particle pollution from key sites around Australia, and internationally, for more than 20 years.  

Aerial image of ANSTO's Lucas Heights facility

Statement of Intent

In January 2026, Mr Michael Quigley AM, ANSTO Board Chair, shared ANSTO's Statement of Intent with the Minister for Industry and Innovation, and Minister for Science.

ansto-gentech-generator

Nuclear medicine processing and distribution

ANSTO’s nuclear medicine processing and distribution facility assembles, loads, tests and distributes a range of nuclear medicine products, including Mo-99. The Mo-99 is dispensed into an ANSTO radiopharmaceutical Gentech® Generator where it decays to Tc-99m.

OPAL Reactor Core

What is radiation?

Radiation can be described as energy or particles from a source that travel through space or other mediums. Light, heat, and wireless communications are all forms of radiation.

Anonymity

Anonymised Review

ANSTO has agreed to participate in an Australian trial of a review of research infrastructure access proposals in which applicants remain anonymous to aid the removal of structural barriers to the career progression of Women in STEM.

Studying Western Australian caves to help us understand climate change

On average, there is now 17 per cent less rainfall across Western Australia’s south-western region than was recorded prior to 1970. This rainfall reduction has economic, social and environmental implications for the region, in particular for the growing capital of Perth, as well as water-dependent industries in the state.

Pagination