NEA Monthly News Bulletin

NEA publications
Nuclear safety and regulation
Data Bank

NEA publications

Nuclear Energy Data 2009/Données sur l'énergie nucléaire 2009
ISBN 978-92-64-04772-3. 120 pages.

Nuclear Law Bulletin No. 83
ISSN 0304-341X. 200 pages.

Disponible également en français :
Bulletin de droit nucléaire, n° 83
ISSN 0304-3428. 250 pages.

Inter-code Comparison Exercise for Criticality Excursion Analysis
Benchmarks Phase I: Pulse Mode Experiments with Uranyl Nitrate Solution Using the TRACY and SILENE Experimental Facilities
ISBN: 978-92-64-99073-9. 172 pages (4 Mb).

Mixed-oxide (MOX) Fuel Performance Benchmark (PRIMO)
Summary of the Results for the PRIMO BD8 MOX Rod
ISBN: 978-92-64-99085-2. 40 pages (3 Mb).

Work Management to Optimise Occupational Radiation Protection at Nuclear Power Plants
ISBN: 978-92-64-99089-0. 128 pages (3 Mb)

Nuclear safety and regulation

RWM publications and reportsAs part of the regular programme of work of the Committee on the Safety of Nuclear Installations (CSNI), the NEA Nuclear Safety Division recently issued the following documents, available on the NEA website:

Ability of Current Advanced Codes to Predict Core Degradation, Melt Progression and Reflooding - Benchmark Exercise on an Alternative TMI-2 Accident Scenario

Overall, the results of this exercise are encouraging. First, all the codes succeeded in calculating a complete scenario, with very little tuning of parameters or optimisation of input decks. This shows the robustness of current codes and significant progress compared to the state of codes 20 years ago. Moreover, it appears that the codes' global results have become significantly more consistent over this period.
Download the document (pdf, 10 Mb)

Probabilistic Safety Analysis (PSA) of Other External Events than Earthquakes

One of the general findings in this report is that the role of external events in PSAs is increasing when considering new regulatory requirements, new versions of existing PSAs, or PSAs performed for new plants. One possible reason for this trend is that several hazards were not covered by older PSAs and safety improvements were implemented for the dominant internal initiators, while the introduction of hazards in the PSAs led to the identification of new problems. Hence, the relative contribution of external hazards is increasing in PSAs for new plants.
Download the document (pdf, 767 kb)

FIRE Project Report: "Collection and Analysis of Fire Events (2002-2008) – First Applications and Expected Further Developments"

The Fire Incidents Records Exchange (FIRE) database provides qualitative insights into the root causes of incipient fires and time-dependent fire development. Initial national applications of the database have shown the importance of detailed fire event descriptions providing broader insights beyond the information in the coded fields. It will be important to enlarge the database in the future with continuous and consistent reporting of events by the project members and to encourage additional NEA member countries to support the FIRE Project to achieve better corroborated data for PSA use. A new term of the project will start in January 2010.
Download the document (pdf, 2 Mb)

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04-SEP-2009 USCD1238 ALICE2008, Particle Spectra from HMS Pre-compound Nucleus Decay
21-JUL-2009 NEA-1776 IFPE/PRIMO-BD8, Belgonucleaire and SCK-CEN PRIMO Ramped MOX Fuel Rod BD8
10-JUL-2009 NEA-1525 PENELOPE2008, A Code System for Monte-Carlo Simulation of Electron and Photon Transport