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Nuclear Matters

Liz Williams
Australia
Nuclear Security
IAEA
Nuclear Matters
Seismology
Comprehensive Nuclear-Test-Ban Treaty Organization
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
Montebello Island

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

PublishesMonthlyEpisodes13Foundeda year ago
Number of ListenersCategories
ScienceNatural SciencesTechnology

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Artwork for Nuclear Matters

Latest Episodes

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

We thought we'd share a sneak peek of the new season of Nuclear Matters. The first full episode is coming at the end of April. If you haven't already subscribed to the feed, what are you waiting for? The Apple Podcasts link is here if that's where yo... more

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Recent Guests

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
Trevor Findlay
Professor of nuclear governance, involved in early work on CTBT
Former member of Australian delegation to the Committee on Disarmament
Episode: Nuclear Testing in a No-Test World: Verification, Politics, and Risk – with Prof Trevor Findlay
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
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
Jasmin Diab
Managing director of Global Nuclear Security Partners and president of Women in Nuclear Australia; military veteran
Global Nuclear Security Partners; Women in Nuclear Australia
Episode: Securing nuclear technologies, with Jaz Diab

Host

Liz Williams
Host of Nuclear Matters

Reviews

5.0 out of 5 stars from 3 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.

How seismology helps the world detect nuclear weapons tests (amongst other things), with Professor Hrvoje Tkalčić
Q: Can you tell us about what seismology is, what kind of data you collect to do this work, and what this data can tell you about our planet?
Seismology studies waves generated primarily by large earthquakes, recorded by seismographs that can detect movements far smaller than a hair's breadth; these data include different wave types and can reveal how waves propagate, helping discriminate between explosions and earthquakes and informing us about the Earth's interior.
Nuclear Testing in a No-Test World: Verification, Politics, and Risk – with Prof Trevor Findlay
Q: What were the hardest problems to solve in designing a verification regime for underground tests?
The core challenge was ensuring reliable detection of very low yield underground tests while preventing cheating, which led to a layered approach combining seismic monitoring, on-site inspections, and radionuclide detection to create a credible deterrent.
Securing nuclear technologies, with Jaz Diab
Q: What does nuclear security entail beyond guns and gates, and how does it intersect with safety?
Security is about material control, access, and information security, ensuring that safety features do not create security vulnerabilities, and that safety and security systems are designed to work in concert rather than in silos.
Securing nuclear technologies, with Jaz Diab
Q: How did you come to specialize in nuclear security and pursue international work?
The guest explains a career path from the Australian Army into nuclear security consulting, retaining military threat reduction instincts while pursuing deeper technical understanding through nuclear engineering to adapt security to diverse facilities and international contexts.
How does plutonium behave in marine environments? - with Madison Williams-Hoffman
Q: What have you learned about the behavior of plutonium in biota and the ecosystem?
Non-human biota dose assessments are complicated due to species differences, so generalized models often treat organisms as simple shapes, and research focuses on understanding how different tissues accumulate isotopes like plutonium across species such as mangroves, with mangroves showing notable uptake.

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. Global Roaming with Geraldine Doogue and Hamish Macdonald
2. The Rest Is Politics: US
3. The Daily

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Nuclear Matters launched a year ago and published 13 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. Hrvoje Tkalčić
2. Trevor Findlay
3. Michiel Van Oudheusden
4. Madison Williams-Hoffman
5. Nate Smith
6. AJ Mitchell
7. Jasmin Diab

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