Towards an International Nuclear Forensics Capability Brett Isselhardt University of California, Berkeley Lawrence Livermore National Laboratory
Project on Nuclear Issues (PONI) Conference U.S. Naval Academy April 3, 2008
Introduction • Post-detonation nuclear forensics is a critical tool • Pre-detonation nuclear forensics is under-utilized as a technological capability “Although the focus of today’s hearing is nuclear forensics and attribution, I must reiterate that our number one priority is to keep fissile materials – plutonium or highly enriched uranium – out of the hands of terrorists.” ~ Dr. Steven Aoki, Dep. Undersecretary for Counterterrorism, House subcommittee hearing, Oct 10, 2007.
• International collaboration can and should be utilized to strengthen nuclear forensics and its application
Advantages of Pre-Det approach • A simpler problem to solve • Time is less critical • Provides concrete demonstrations, recommendations and exercises • Builds critical database and capabilities for future applications • Entire spectrum of response is available
• Forensics – “Known” signatures • Characteristics that distinguish one material from another. • Comparative samples • Predictive models – Source, Processes, and Route
• Attribution – Intelligence – Nuclear Forensics – Traditional Forensics
Degree of Sensitivity Low Medium High
Material
Characterization Methods
Scientific Data
Signatures
Forensics Methods
Intelligence
Forensics Data
Attribution
International Framework • •
Build on existing infrastructure to centralize non-sensitive forensics data at IAEA. Regime of participating states agree to: – – – – – –
•
Create a Forensics Management Team (FMT) Nuclear forensics laboratory qualification through ITWG. Share results of non-sensitive forensics data. Produce capability of self-attributing sensitive materials. Interdiction and pre-detonation protocols overseen by ITWG. Participate in international attribution board reporting to the IAEA board of governors.
Initial structure is centralized network – –
Non-sensitive forensics data transparency Attribution results presented by Forensics Management Teams (FMT) to IAEA Attribution Board.
FMT
FMT
Board
ITWG
Data
IAEA FMT Non-sensitive
Data
Sensitive
Data
Attribution
BUILDING INTERNATIONAL CAPABILITY • Nuclear materials databases in progress – Under development (mostly commercial fuels) – US, Russia, Europe (JRC), and IAEA
• Partial participation still helpful – Exclusion is a useful result – 87% of fissile material controlled by US/Russia (Albright 2005) – Involuntary or historic sampling conceivable
• Challenges to sample collection, analysis and verification – Standards & Protocols – International Technical Working Group (ITWG)
International Cooperation Yellowcake
• Evaluating risks and benefits for sharing information. – U.S. – Others • Preparing to share information, need based disclosure • Establishing credibility of methods internationally • Resolving real-world cases and conclusions
Conclusion • Nuclear Forensics is a difficult but important problem. • Pre-detonation forensics provides an opportunity for measureable, actionable prevention of unattributed nuclear detonations by identifying high risk sources. • Expanding international capability and cooperation in nuclear forensics will strengthen international security.