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NUCLEUS information resources

The IAEA's NUCLEUS information resource portal provides access to over 100 scientific, technical and regulatory resources, including databases, applications, publications and training material. As it is mainly meant for IAEA counterparts in the government, industry and scientific community, NUCLEUS hosts a number of resources that require registration. Many sites, however, can be accessed without a password.

Reference Input Parameter Library

RIPL-3 is devoted to input parameters needed in calculations of nuclear reactions and nuclear data evaluations. 

Calibration of reference standards used for dosimetry measurements

Reference Products for Environment and Trade

This site gives access to more than 90 reference materials to assist IAEA Member State laboratories in enhancing the reliability and comparability of measurement results obtained by nuclear analytical techniques.

Research Reactor Database (RRDB)

The IAEA's Research Reactor Database (RRDB) is an authoritative database containing technical information on over 800 research reactors, including critical and sub-critical assemblies in 67 countries.

Research Reactor Material Properties Database

​The RRMPDB is a compilation of reports on properties of structural and component materials used in research reactor cores.

iaea safeguard seal

Safeguards Implementation Practices (SIP)

​This site provides access to IAEA safeguards guidance on several related topics, primarily addressing the implementation of comprehensive safeguards agreements and additional protocols, good safeguards practices, facilitating IAEA verification activities, safeguards infrastructure and the formatting and submittal of information to the IAEA.

Safeguards Support Programme Information and Communication System (SPRICS)

SPRICS gives Safeguards Member State Support Programme stakeholders access to task proposal information, task information, meeting information, and point of contact information.

SAGSI on Nucleus – Standing Advisory Group on Safeguards Implementation (SAGSI)

SAGSI advises the IAEA Director General on the technical aspects of IAEA safeguards.

Spallation Models

This site provides access to the IAEA Benchmark of Spallation Models.

Spent Fuel and Radioactive Waste Information System (SRIS)

The Spent Fuel and Radioactive Waste Information System (SRIS) contains information on national spent fuel and radioactive waste management programmes, spent fuel and radioactive waste inventories and facilities, as well as relevant laws and regulations, policies, plans and activities.

State Declarations Portal (SDP)

The State Declarations Portal (SDP) is a web-based system that supports secure bi-directional information exchange between States or Regional Authorities and the IAEA.

Stopping Power

This resource gives access to a collection of data, graphs and computer programmes dealing with the ranges of various ions (from protons to uranium) in materials.


The Technical Cooperation Project Information Dissemination Environment (TC-PRIDE) system provides detailed information about all ongoing and completed technical cooperation projects, as well as various summary financial reports.

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