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Nuclear Matters

Liz Williams
Australia
Nuclear Security
IAEA
Nuclear Matters
Seismology
Comprehensive Nuclear-Test-Ban Treaty Organization
Theranostics
Myanmar
International Atomic Energy Agency
Tellus
Low-Level Radioactive Waste
Iraq
Nonproliferation
Nuclear Safeguards
Citizen Science
Governance Of Nuclear Technologies
Australian National University
Nuclear Technologies
Earth's Interior
Consent-Based Siting

From cancer treatments that save lives to energy solutions dividing the nation, Nuclear Matters explores Australia's nuclear past, present, and future with the help of experts actively working on these issues.

Nuclear Matters is a production of the Australian National University (ANU) College of Systems and Society. Its creator, host and lead producer is Liz Williams, Nuclear Systems Discipline Le... more

PublishesMonthlyEpisodes14Foundeda year ago
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TechnologyNatural SciencesScience

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Artwork for Nuclear Matters

Latest Episodes

Gold is mined at about one gram per tonne, which means every decision a gold mining company makes rests on somebody being able to measure a very small amount of gold, very accurately, in a very large amount of rock. Our guest in this episode replaced... more

Imagine a global network of sensor stations, ready to detect even the smallest nuclear weapons test. This network is in fact a reality. As we learned in our last episode, the Comprehensive Nuclear Test Ban Treaty Organisation’s monitoring network is ... more

When President Trump announced last year that the US might resume nuclear weapons testing, it raised a question the world hasn't had to seriously consider in decades: what happens if they do?

In this episode, Liz Williams sits down with Professor Tr... more

In this episode, Dr Ashleigh Hull and Dr Stephen Tronchin join host Liz Williams to explore theranostics — a cutting-edge approach to cancer treatment that uses radiopharmaceuticals to both detect and treat cancers from within the body. They cover th... more

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Recent Guests

James Tickner
Chief Scientist and Co-Founder of Chrysos Corporation
Chrysos Corporation
Episode: Turning nuclear science into gold, with Dr James Tickner
Hrvoje Tkalčić
Head of Geophysics at ANU and Director of the Warramunga Facility
Australian National University
Episode: How seismology helps the world detect nuclear weapons tests (amongst other things), with Professor Hrvoje Tkalčić
Stephen Tronchin
Postdoctoral Research Fellow
Adelaide University / Radinnovate
Episode: What are theranostics, and how are they used to treat cancer? With Dr Ashleigh Hull and Dr Stephen Tronchin
Ashleigh Hull
Nuclear Medicine Technologist and lecturer in Medical Physics
Adelaide University / Radinnovate
Episode: What are theranostics, and how are they used to treat cancer? With Dr Ashleigh Hull and Dr Stephen Tronchin
Michiel Van Oudheusden
Associate Professor of Public Participation in Science and Democracy
VU Amsterdam
Episode: Citizen science and nuclear technologies, with A/Prof Michiel Van Oudheusden
Trevor Findlay
Honorary professorial fellow at the University of Melbourne and author of Transforming Nuclear Safeguards Culture, The IAEA, Iraq, and the Future of Nonproliferation
University of Melbourne
Episode: Exploring nuclear safeguards cultures, with Prof Trevor Findlay
Madison Williams-Hoffman
Postdoctoral fellow focusing on plutonium transport in marine environments at ANU
ARC Radinnovate Industrial Transformation Training Centre at ANU
Episode: How does plutonium behave in marine environments? - with Madison Williams-Hoffman
Nate Smith
Tellus CEO and Managing Director
Tellus
Episode: Trust, technology, and radioactive waste, with Nate Smith
AJ Mitchell
Experimental nuclear physicist at ANU
Australian National University
Episode: Supporting nuclear education, with Dr AJ Mitchell

Host

Liz Williams
Host of Nuclear Matters

Reviews

5.0 out of 5 stars from 4 ratings
  • Australia needs this podcast

    As a physicist and science communicator can I just say how very welcome this podcast is! Liz is an excellent, knowledgeable expert in the area and her capacity to deliver insightful interviews really shines through. Just one episode in I’ve shared this with more people than I’ve ever shared a podcast in. Great work, keep it up!

    Apple Podcasts
    5
    suz1806
    Australiaa year ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Guests provide varied, expert perspectives that add depth to nuclear topics.
Knowledgeable host who guides insightful interviews.
Content is accessible yet rigorous, making it suitable for both researchers and students.
Interviews feel well-researched and credible for policymakers and scientists.

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Talking Points

Recent interactions between the hosts and their guests.

Turning nuclear science into gold, with Dr James Tickner
Q: What did the first mining company that trialed Photon Assay experience look like and what did it take to scale from there?
Early adopters, starting with a small WA lab, provided proof by taking the first units and showing rapid, reliable results; this built credibility to expand to larger labs and eventually on-site installations, helping shift industry perception and adoption.
Turning nuclear science into gold, with Dr James Tickner
Q: Can we give listeners a sense of what a process for figuring out whether you've got gold in sufficient quantities might look like?
The process underpins exploration and production: measuring gold accurately in samples, ensuring the material is economically viable to mine, and guiding where to process; Photon Assay enables fast, sensitive, and representative measurements by using high-energy X-rays to excite gold nuclei and detect characteristic gamma signatures.
What are theranostics, and how are they used to treat cancer? With Dr Ashleigh Hull and Dr Stephen Tronchin
Q: How is a good theranostic pair selected?
A good pair uses chemically identical or very similar compounds for imaging and therapy, ensuring similar biokinetics; the imaging isotope guides dose planning for the therapeutic isotope, and matching chelators help maintain stability and targeting.
What are theranostics, and how are they used to treat cancer? With Dr Ashleigh Hull and Dr Stephen Tronchin
Q: Why choose beta versus alpha emitters for therapy?
Beta emitters deposit dose over a short to moderate tissue range, suitable for treating tumors while limiting off-target spread, whereas alpha emitters deliver very high energy over micrometer ranges, potentially more effectively killing cancer cells with minimal impact on surrounding tissue, but with more complex dosimetry due to decay chains.
What are theranostics, and how are they used to treat cancer? With Dr Ashleigh Hull and Dr Stephen Tronchin
Q: What is theranostics, in simple terms?
Theranostics is a nuclear medicine approach that uses a radiopharmaceutical capable of both imaging (diagnostic) and delivering therapy (therapeutic) to the same target, enabling personalized treatment based on how the agent distributes in the body.

Audience Metrics

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Frequently Asked Questions About Nuclear Matters

What is Nuclear Matters about and what kind of topics does it cover?

Explores nuclear science, policy, governance, and societal implications through expert interviews and real-world case studies in Australia. Recent episodes cover citizen science governance for nuclear technologies, safeguards culture and international oversight, plutonium behavior in marine environments, radioactive waste management and consent-based siting, nuclear education across regions, and security considerations for emerging technologies. The show stands out for combining rigorous technical context with policy discussions, regional perspectives, and practical anecdotes that illuminate how nuclear issues intersect with ethics, law, and community engagement. This makes it useful for listeners who want clear, evidence-driven insights in... more

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1. Maritime Matters

How many episodes of Nuclear Matters are there?

Nuclear Matters launched a year ago and published 14 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Nuclear Matters?

Recent guests on Nuclear Matters include:

1. James Tickner
2. Hrvoje Tkalčić
3. Stephen Tronchin
4. Ashleigh Hull
5. Michiel Van Oudheusden
6. Trevor Findlay
7. Madison Williams-Hoffman
8. Nate Smith

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