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Atomkernenergie/Kerntechnik vol. 37 no.4 (1981), p.p. 257-265

Radial fine flux distribution in AGR-type clusters of fuel pins

George Koutzoukos and Demetrios Leonidou
Laboratory of Nuclear Engineering, National Technical University, Patission Street 42, Athens, Greece.

The thermal neutron fine flux distribution in AGR-type fuel elements is investigated for different fuel densities in teh cluster, by using Dy-foils. The relative error of the measurements (one standard deviation) is 1.8%-3%. The experimentally derived variation of the thermal neutron flux from the cluster towards its center is compared with that calculated by using simple culster models and one-group diffusion theory.

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