Nuclear Fuel Cycle and Materials

Nuclear Fuel Cycle Related Databases

Minor Actinide Property Database (MADB)

Contact: Harikrishnan TULSIDAS, Uddharan BASAK

The Minor Actinide Property Database (MADB) is a bibliographic database on physico-chemical properties of selected Minor Actinide (MA) compounds and alloys.

Recently, the scope of R&D activities is increasing among Member States on several facets of Minor Actinide (MA) elements (namely Am, Np, and Cm) and their compounds owing to their accumulation in significant quantities by enhanced use of nuclear energy. These artificial elements pose a very long-term radiological toxic burden to the environment, which has become a limiting factor for the growth of nuclear energy. The issue of mitigation of radiological toxicity of actinides by advanced P&T methods has been addressed by the IAEA in its several meetings and TECDOCs. Since 1976, the IAEA has played a groundbreaking role in influencing the evolution of P&T technologies amongst all its Member States. In this context, the IAEA has conducted a comprehensive review of thermodynamic data of all actinides elements and compounds and published a series of 14 reports (IAEA/STI/PUB/424) for a period between 1976 and 1992. These database series have become the de facto internal standard for chemical thermodynamic data of actinides and its compounds. Recent global R&D efforts on advanced P&T methods in the last two decades have generated considerable information/data on MAs and its compounds encompassing various aspects of advanced nuclear fuel cycles.

To enhance the capacity of interested Member States in developing innovative nuclear fuel cycle technologies, it is deemed necessary to develop a database on physico-chemical properties of MAs and its compounds. In this regard, the IAEA initiated an activity to create an electronic database which will be easily expanded and updated and disseminated through the internet to the interested parties. The MA materials and properties are selected based on their importance for the use in advanced nuclear fuel cycle especially for the partitioning and transmutation.

The main idea behind the database initiative is to assemble information from the existing published literature on MAs especially thermo-physical as well as thermo-chemical properties pertinent and applicable to advanced partitioning methods as well as fuel/target fabrication subjects. The collection of bibliographic and technical information on MA data in selective areas and its review as well as assessment are divided into certain tasks. The present web-based database illustrates only bibliographic information together with technical data wherever available. The authors supplied the information and data given here and it was not critically reviewed or assessed by the Agency. The property database intends to cover thermodynamic, electro-chemical, phase-diagram and physical properties for the respective distinct unary and binary as well as multi-component oxide/nitride/halide/alloy MAs systems in molten as well as solid phases. In the first phase of this task the scope of the database encompasses only the bibliographic information for pertinent properties to advanced pyro-chemical processing methods and fuel/target fabrication issues. In this context covering advanced aqueous partitioning methods was not considered in the present task.

Data collection will be continuously peformed and the database content will be expanded to cover more in the field. It is intended to review the current literature and incorporate in near future. Suggestions or contributions to database could be sent to [email protected].

MADB is available online at http://infcis.iaea.org
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