Providing emergency managers around the world with interactive, browser-based access to NARAC and other Global Dose Assessment Centers

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If you are (or represent) a National Competent Authority of a Member State of the International Atomic Energy Agency (IAEA) but you do not have an IXP account, you may request IXP support through either:
  1. Contacting the IAEA Incident and Emergency Centre (IEC) as per the emergency communication arrangements described in EPR IEComm 2012, providing IEC with the input data and asking IEC to share with you the output of a specific IXP scenario based on your input data, or through
  2. Contacting the US Department of Energy National Nuclear Security Administration 24/7 Watch Officer (phone +1 202 586 8100)
Overview of the International Exchange Program (IXP)
The IXP system provides rapid, three-dimensional, time-dependent computer-model predictions of the concentrations, doses, and health effects caused by atmospheric releases of radioactive materials anywhere on Earth. The IXP system is available 24/7 to support the 146 Member States and the Incident and Emergency Centre (IEC) of the International Atomic Energy Agency (IAEA), in accordance with the Convention on Assistance in Case of a Nuclear Accident or Radiological Emergency. The IXP is a US-provided capability, which is officially committed to and registered with the IAEA Response Assistance Network (RANET), implemented in 2008 - read more.
Authorized IXP users can:
  • Quickly enter a simplified description of a radiological atmospheric release
  • Send this information electronically to NARAC for processing
  • Receive an initial atmospheric dispersion and dose prediction, based on NARAC's 3-D models, within a few minutes
  • Overlay the prediction results on interactive maps and satellite images
  • Instantly share the prediction with other selected IXP users, if desired
  • Easily generate a standardized consequence report suitable for printing or e-mailing
  • Easily download the results as a shape file for use in a geographical information system (GIS)
  • Receive refined dispersion and dose predictions (produced by NARAC operations scientists) throughout the course of an actual radiological incident or emergency, with appropriate authorization
  • Receive dispersion and dose predictions from other Global Dose Assessment Centers (GDACs), when authorized by those centers
  • Share text, data, and graphics files with other IXP users
  • Send messages to other users
  • Download resource material from NARAC
Global Dose Assessment Centers (GDACs) can:
  • Use the IXP to upload and compare their model results
  • Use the IXP to distribute their model predictions to any IXP user(s) or group(s)
  • Access the same functionalities listed above for IXP users
Technical Requirements and Information Security
  • No special hardware or software (other than a web browser) is required.
  • The IXP system uses a secure (https encrypted) web site.
  • Access is controlled by username and password.
  • Unless an IXP user intentionally shares his/her model results, they cannot be accessed by other IXP users.
How to Become a Registered IXP User
To obtain an IXP account you must:
  • Be an emergency manager in an IAEA Member State
  • Have a legitimate need for IXP access
  • Be nominated by the National Competent Authority of your respective IAEA Member State
  • Be vetted by the US DOE NNSA Office of Nuclear Incident Policy and Cooperation
If you fulfill these criteria, or if you need additional information about qualifying for an IXP account, please fill out the account request and we will contact you.
The IXP is sponsored by the Office of Nuclear Incident Policy and Cooperation of the United States Department of Energy's National Nuclear Security Administration. It is hosted by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory in Livermore, California, USA.


Contact IXP Support at: IXP Support

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