Nuclear Energy Agency Online Bulletin

Covers new material for November 2007:

NEA publications
Nuclear safety
Nuclear development
Radiological protection
Data Bank

NEA publications

Engineered Barrier Systems (EBS) in the Safety Case: Design Confirmation and Demonstration - Workshop Proceedings, Tokyo, Japan, 12-15 September 2006Engineered Barrier Systems (EBS) in the Safety Case: Design Confirmation and Demonstration
Workshop Proceedings, Tokyo, Japan, 12-15 September 2006
ISBN 978-92-64-03995-7.

Radioactive Waste Management in Spain: Co-ordination and Projects
FSC Workshop Proceedings, L'Hospitalet de l'Infant, Spain, 21-23 November 2005
ISBN 978-92-64-03941-4.

Transparency of Nuclear Regulatory Activities
Workshop Proceedings,Tokyo and Tokai-Mura, Japan, 22-24 May 2007
ISBN 978-92-64-04095-3.

International Evaluation Co-operation
Volume 25: Assessment of Fission Product Decay Data for Decay Heat Calculations
ISBN 978-92-64-99034-0. 59 pages, 506 kb.

Scientific Issues and Emerging Challenges for Radiological Protection
Report of the Expert Group on the Implications of Radiological Protection Science
ISBN 978-92-64-99032-6. 120 pages, 492 kb.

VVER-1000 Coolant Transient Benchmark
Phase I (V1000CT-1), Volume 3: Summary Results of Exercise 2 on Coupled 3-D Kinetics/Core Thermal-hydraulics
ISBN 978-92-64-99035-7. 92 pages, 540 kb.

Nuclear safety

The NEA will hold a workshop on Recent Findings and Developments in Probabilistic Seismic Hazard Analysis (PSHA) Methodologies and Applications on 7-9 April 2008 in Lyon, France. The objective of this workshop is to discuss recent research and the regulatory, utility and industry issues associated with PSHA. The results of PSHA studies undertaken to date in regions with low to moderate seismicity exhibit large areas of uncertainty. Workshop participants will therefore discuss how to improve knowledge and reduce uncertainty associated with the lack of strong-motion data and regional-specific attenuation relations. Material presented at the November 2006 specialists' meeting on the seismic probabilistic safety assessment of nuclear facilities will be used to support these discussions. More information is available at

Related links

Documents from the Committee on Nuclear Regulatory Activities (CNRA)
Documents from the Committee on the Safety of Nuclear Installations (CSNI)

Forthcoming workshops and seminars

Nuclear development

The NEA Nuclear Development Committee (NDC) agreed during its June 2007 meeting to establish a subgroup to provide analyses of economic issues on a near-permanent basis. The Working Party on Nuclear Economics (WPNE), which is made up of representatives from 12 NEA member countries and the European Commission, met for the first time on 12-13 November 2007 at NEA offices in Issy-les-Moulineaux, France. Participants discussed a wide range of issues in the field of economics of nuclear energy and several activities that could be undertaken within the framework of the working party's mandate. Two sets of recommendations to the NDC were drafted. The first concerns tasks to be carried out by the WPNE on a continuous basis, such as developing a database of unit costs and prices and implementing computer tools to support cost estimates. The second set of recommendations identifies key economic issues that could be incorporated into the NDC programme of work, such as the cost-effectiveness of nuclear energy in reducing greenhouse gas emissions and the impact of uranium prices on the economics of nuclear energy. More information is available at

Very little analytical work has been published thus far on the development of quantitative measurements of energy supply security. The objective of a new NEA study is to identify approaches to measuring nuclear energy's contribution to the security of energy supplies and to quantify the risks associated with energy supply insecurity. The Ad hoc Expert Group on Nuclear Energy and Security of Supply, which has been formed to carry out the study, met for the first time on 22-23 November 2007 at NEA offices in Issy-les-Moulineaux, France. The 20 experts from member countries and the French research institution Sciences Po who attended the meeting discussed possible qualitative and quantitative approaches to measuring the security of energy supply. They agreed that once the analytical approaches are identified, the expert group will assess nuclear energy's role in enhancing energy supply security. Five qualitative approaches will be evaluated prior to the second meeting in June 2008, while quantitative techniques are sought and assessed. This will allow expert group members to compare qualitative and quantitative approaches at the second meeting, leading to an informed decision on the quantitative approach to be used during the remainder of the study. More information is available at

Radiological protection

The NEA Expert Group on Occupational Exposure (EGOE) met for the second time on 19-20 November 2007 at NEA offices in Issy-les-Moulineaux, France. During the meeting, the group finalised plans to examine the development of operational radiological protection objectives or considerations for "new build" (including third and fourth generation reactors) and the likely implications of the new International Commission on Radiological Protection general recommendations in this field. The EGOE will build on operational and regulatory experience in NEA member countries, focusing on the use of existing databases such as the Information System on Occupational Exposure (ISOE), the European Study on Occupational Radiation Exposure and other emissions databases to identify how operational experience can support the review and development of occupational radiological protection guidance and good practice. More information is available at

Data Bank

Nuclear data services

Participants in the Joint European Fission and Fusion (JEFF) project met on 26-28 November at NEA offices in Issy-les-Moulineaux, France. Meeting participants discussed fission and fusion data evaluations to be incorporated into a future release of the JEFF nuclear data library. A new release of JEFF-3.1.1/RDD, the radioactive decay data library, is in preparation for release on CD-ROM in 2008. The new release will include both the data and the full documentation for the radioactive decay data library. More information is available at

An NJOY User's Group meeting was held in conjunction with the JEFF meeting on 26 November at NEA offices. Meeting participants discussed the latest version (NJOY99.259) and strategies for its further development with the head of NJOY code development at Los Alamos National Laboratory, USA. More information is available at

In order to support the distribution and best use of the various evaluated nuclear data libraries, the NEA promotes the exchange of information on processed libraries, pre-processing and processing codes. The NEA also provides a framework for the processing of evaluated nuclear data through its nuclear data services. New libraries are always being sought and added to the listing on the NEA website. Two new libraries were added during November 2007. More information is available at

Computer program services

A page listing all new programs in the last 12 months can be found at

Instructions on retrieving material from the NEA may be found at Please note that scientific database access is only available to residents of OECD/NEA Data Bank member countries.

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