Ioanna M. Iliopulos

Senior Consultant

Ioanna Iliopulos joined NTI as a senior consultant in February 2015 to support NTI’s Radiological Security Program. Iliopulos has more than 20 years of experience addressing issues and programs relating to National Security and Nonproliferation policy. For the past 14 years, Iliopulos had been supporting the U.S. Department of Energy’s (DOE) nonproliferation and national security programs relating to international nuclear and radiological security, and control and accountability of nuclear materials.  

She served as the director of the Office of North and South American Threat Reduction within the National Nuclear Security Administration’s Global Threat Reduction Initiative, in which she was responsible for directing policies and programs relating to protection of nuclear and other radioactive materials of terrorist concern in the US and abroad, including significant U.S. Government cooperative efforts with international organizations such as the International Atomic Energy Agency, Europol and Interpol.

Prior to her current assignment, Iliopulos served as the director of GTRI’s Office of European and African Threat Reduction, overseeing the first major U.S. effort to work with Governments in those regions to protect, recover and dispose of vulnerable, high risk nuclear and other radioactive materials that pose a security risk.  She also served at the Department of State on chemical and biological programs and worked at the Organization for the Prohibition of Chemical Weapons (OPCW) in The Hague in the Verification Division.

Iliopulos’ education includes extensive international study at the University of Pittsburgh and the University of Vienna, Austria. She holds a MSc. Degree from the London School of Economics and Political Science.


California's Radiological Threat Reduction Initiative

This paper, submitted to the 59th annual meeting of the Institute for Nuclear Materials Management (INMM) by Program Assistant Alex Bednarek and Senior Consultant Ioanna Iliopulos, outlines efforts between California and NTI to reduce radiological risks.

Re-Examining the State of Radiological Source Security in Russia

This paper explores the potential for a radiological attack, as well as the possible outcomes of such an event. It presents an overview of the state of radiological material security and disposal in Russia and highlights progress made, both domestically and internationally, in securing these materials.

Strengthening the Security of Radiological Sources

This paper highlights the risks posed by radiological sources and the challenges around securing them, and it offers options for countries to consider adopting at the 2016 International Atomic Energy Agency (IAEA) International Conference on Nuclear Security and beyond to strengthen radiological security.

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Radioactive Background

Preventing a Dirty Bomb

Cesium-137 is an isotope used medical equipment such as blood irradiators. However, it is also the most dangerous of all radioactive isotopes. If used in a dirty bomb, the highly dispersible powder would contaminate an area for years, costing billions of dollars in evacuation, demolition and clean-up. NTI works with hospitals, industry and governments to raise awareness about this threat and the availability of safe and effective alternative technologies to cesium-137 blood irradiators.