Title: Qualification of HTR Pebbles by X-ray Tomography and Thermal Analysis
Authors: HANIA RalphJANSSEN BasFEDOROV A. V.DE GROOT SanderMETTEN LangoVAN DE SANDE AlanFUETTERER MichaelNABIELEK Heinz
Citation: Proceedings of HTR 2010 p. Paper 101 (1-6)
Publisher: The TERIS company
Publication Year: 2010
JRC N°: JRC60445
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC60445
Type: Contributions to Conferences
Abstract: Knowledge of the TRISO particle distributions inside HTR fuel pebbles or compacts may help manufacturers to improve the quality of their fuel, by providing a selection criterion for individual pebbles, as well as by providing feedback during the development phase. In a joint program, NRG and JRC-IE develop a fast method to obtain these distributions nondestructively, based on X-ray tomography. The coordinates of the individual TRISO particles are extracted from a tomographic reconstruction of a pebble. Statistical representations of the particle distribution are made. The temperature distribution inside the pebble is then determined by assigning a power to each particle, using the edge temperature as a boundary condition. This procedure is applied to 31 pebbles fabricated in the framework of the German HTR fuel qualification program.
JRC Institute:Institute for Energy and Transport

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