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A passive heat removal retrofit for BWRs
15 November, 2013
One of the fundamental safety functions of nuclear power plants is residual heat removal. Nevertheless, during certain scenarios, like the station blackout, or loss of the ultimate heat sink, available active safety systems are often not sufficient to remove the decay heat. A retrofitted turbo-compressor system driven by a self-cooling Brayton cycle could provide autarky even in these beyond design basis accidents and extend the grace period of existing BWRs significantly. By Jeanne Venker

Half way - a review of post Fukushima actions in Europe
02 August, 2013
After worldwide calls to action came in the wake of the tsunami that devastated Fukushima Daiichi in March 2011, nuclear power plants have been shoring up their defences for more than a year already. Much has already been accomplished; many projects are only months away from realization. By Will Dalrymple

Raising the roof over Chernobyl
01 April, 2013
In November a 15-year plan to cover the damaged Chernobyl unit 4 reactor came one significant step closer to reality, when the first 5300t section of a huge airplane-hanger-style curved roof was lifted 22m off the ground. By 2015, a EUR1 billion 100-year confinement roof should be ready to slide over the damaged reactor, through whose existing temporary shelter roof rainwater continues to leak in, and radioactive dust continues to leak out. By Will Dalrymple

Reviewing the periodic safety review
25 March, 2013
This paper presents the results of a workshop on practical application of IAEA Safety Guide NS-G-2.10 among European nuclear power plant utilities in 2010. A short summary of the successor standard is also presented. By Christiane Bruynooghe, Benoît Lance and Alexander Renev

Considering citizens' concerns
11 March, 2013
Now officially in a nuclear power phase-out policy, and still ambivalent about fuel reprocessing, Belgium has begun to make decisions about a permanent radwaste store. As part of a national consultation about developing plans to store the waste, it commissioned a project that involved a sample of citizens in a collaborative decisionmaking process.

Thermal treatment of ILW
06 March, 2013
Thermal treatment, including vitrification, could reduce by half the volume of some intermediate-level wastes destined for a geological repository, whilst maintaining a degree of radioactive shielding. Thermal treatment methods are introduced and recent tests of ILW simulant in the UK are discussed. By Neil C. Hyatt and Mike James