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Recent progress in research on tungsten materials for nuclear fusion applications in Europe

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Nuclear technology aspects of ITER vessel-mounted diagnostics

Duccio Testa, Matthieu Toussaint

ITER has diagnostics with machine protection, basic and advanced control, and physics roles. Several are distributed on the inner and outer periphery of the vacuum vessel. They have reduced maintainability compared to diagnostics in ports. They also endure ...

Elsevier2011

Comparison of nuclear reactions for the production of monoenergetic neutron fields with energies below 100 keV

Vincent Pierre Lamirand

NPL, PTB, IRMM and IRSN are involved, within a scientific cooperation, in a comprehensive study aimed at developing reference low-energy monoenergetic neutron fields. This paper will explain the impor- tance of such developments, highlighted by the over re ...

Elsevier2010

Compact reactor for continuous multi-phase reactions

Martin Grasemann

The objective of this thesis is the development of a compact reactor for continuous three-phase reactions in single-pass configurations. The design is based on a bubble column reactor staged with layers of catalytic material. To make the reactor suitable f ...

EPFL2009

Management of actinide waste inventories in nuclear phase-out scenarios

Rakesh Chawla, Marco Cometto

The improvement of the "radiological cleanliness" of nuclear energy is a primary goal in the development of advanced reactors and fuel cycles. The multiple recycling of actinides in advanced nuclear systems with fast neutron spectra represents a key option ...

Elsevier Ltd2008

3D Thermal and CFD Simulations of the Divertor Magnetic Coils for ITER

Jean-Marc Moret, René Chavan

Magnetic diagnostics for the new generation fusion reactor “ITER” are required to be extremely reliable since they provide measurements essential for reactor operation and protection, plasma control and for measurement of several parameters fundamental to ...

2007

Mechanical properties-micro structure correlation in neutron irradiated heat-affected zones of austenitic stainless steels

Nadine Baluc

The effects of neutron irradiation on austenitic stainless steels, usually used for the manufacturing of internal elements of nuclear reactors (e.g. the core shrouds), are the alteration of the microstructure, and, as a consequence, of the mechanical prope ...

2007

The present paper reviews the status of the knowledge on materials for fusion power plants, pointing out that they constitute one of the main key issues on the path to future reactors. Specific issues concerning plasma-facing materials, functional material ...

2006

Reactivity and neutron emission measurements of highly burnt PWR fuel rod samples

Rakesh Chawla, Fabian Jatuff

Fuel rods with burnup values beyond 50GWd/t are characterised by relatively large amounts of fission products and a high abundance of major and minor actinides. Of particular interest is the change in the reactivity of the fuel as a function of burnup and ...

Elsevier2006

On the accuracy of reactor physics calculations for square HPLWR fuel assemblies

Rakesh Chawla, Fabian Jatuff

Although the supercritical-pressure or high-performance light water reactor (HPLWR) concept is largely based on the well-established technological experience available with conventional light water reactors, there is still no consensus on various key desig ...

Elsevier2006

The aim of this work is to develop a microstructured reactor based on filamentous catalysts for the Oxidative Steam-Reforming of Methanol (OSRM), to produce hydrogen as feed for a fuel cell, in an autothermal way. Hydrogen is produced by the methanol Steam ...

EPFL2005