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NUCLEUS information resources

The IAEA's NUCLEUS information resource portal provides access to over 110 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.

Basic Professional Training Course on Nuclear Safety

​​The Basic Professional Training Course on Nuclear Safety (BPTC) is intended to provide a broad overview of all the safety concepts and their application to nuclear power plants and research reactors design and operation.

Catalogue of Facilities in Support of Liquid Metal-cooled Fast Neutron Systems (LMFNS Catalogue)

The IAEA’s Catalogue of Facilities in Support of Liquid Metal-cooled Fast Neutron Systems (LMFNS Catalogue) is an online database of experimental facilities in support of the development and deployment of innovative Liquid Metal-cooled (sodium, lead and lead-bismuth) Fast Neutron Systems (LMFNS), both critical and subcritical.

Charged Particle Cross Section Database

The Charged Particle Cross Section Database is intended for medical radioisotope production and for diagnostic radioisotopes and monitor reactions.

Computer Index of Neutron Data

The Computer Index of Neutron Data contains bibliographic references to measurements, calculations, reviews, and evaluations of neutron cross-sections and other microscopic neutron data.

Contact Experts Group Database

This database is currently in the process of being transferred to the International Nuclear Information System (INIS). It has been developed to support informational exchange between the countries participating in the IAEA Contact Expert Group for International Radioactive Waste Projects in the Russian Federation (CEG).

Country Nuclear Power Profiles

The CNPPs cover background information on the status and development of nuclear power programmes in countries with nuclear plants in operation or plants under construction, and in countries actively engaged in planning such programmes.

Cyber Learning Platform for Network Education and Training (CLP4NET)

​​​CLP4NET, the Cyber Learning Platform for Network Education and Training, allows users to easily find educational resources related to topics ranging from nuclear energy, nuclear safety and nuclear science and techology. It contains instructor-led courses and e-learning self-study resources and is provided to the interested public as a cost-free service.

Database for Prompt Gamma-ray Neutron Activation Analysis

The database provides a variety of tables for all natural elements (from H to U), including the following data: isotopic composition, thermal radiative cross section (total and partial), Westcott g-factors, energy of the gamma rays (prompt and delayed), decay mode, half life and branching ratios.

Database on Discharges of Radionuclides to the Atmosphere and Aquatic Environment

DIRATA is a worldwide centralized electronic repository of official records submitted by IAEA Member States.

Direct Application of Phosphate Rock

This site is aimed at guiding decisions and providing recommendations on the use of phosphate rock (PR) as fertilizer, predict their cost-effectiveness as a source of phosphorus for crop productivity and its long-term sustainability and environmental consequences of using soluble P and phosphate rocks.

DIrectory of RAdiotherapy Centres (DIRAC)

DIRAC is the world’s most comprehensive database on radiotherapy resources. It comprises current and historical global data on radiotherapy centres, teletherapy machines, brachytherapy units, treatment planning systems, computed tomography systems and simulators.

Emergency Preparedness and Response Information Management System (EPRIMS)

​EPRIMS is an interactive, web-based tool enabling Member States to self-assess their emergency preparedness and response arrangements with regard to nuclear and radiological emergencies and to share information on the results.


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