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Descripción
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| Fusion reactors are an excellent carbon - free alternative to help meet our future energy demands. Zero emissions, no long - lived radiation waste, abundant fuel supplies, and inherent safety are the most important advantages of magnet ic confinement fusion reactors. On the downside, developing a fusion power plant represents an extremely challenging task from the physics, material technology, and engineering perspectives. The damage caused by high ly energetic neutrons to the in - vessel c omponents requires regular maintenance operations for their replacement. During shutdown, the activated materials decay , emitting gamma radiation. This ionizing field, along with the risk of contamination from activated dust, makes the use of remote handli ng equipment for all the in - vessel maintenance operations mandatory . Even for these mechatronic devices, the extremely high radiation fields in the range of kGy/h ? as shown in Figure 1 ? represents a huge constraint on their design. The survival of their comp onents is usually estimated by a simplistic approach. The maximum level of absorbed dose, along with the intervention time, gives an upper bound to the total damage. This has been sufficient for present experimental reactors , such as JET , as the radiation levels are orders of magnitude below those expected for future power plants [1]. What is more, heavily radiated assemblies need to cope also with the thermal effects arising from the surface and volumetric heat generation. | |
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Internacional
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No |
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Nombre congreso
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ECCOMAS Thematic Conference on Multibody Dynamics 2015 |
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Tipo de participación
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960 |
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Lugar del congreso
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Barcelona |
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Revisores
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Si |
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ISBN o ISSN
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DOI
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Fecha inicio congreso
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29/06/2015 |
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Fecha fin congreso
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02/07/2015 |
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Título de las actas
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