Global optimization of an entire neutron guide hall

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dc.contributor.authorBentley, PMen_AU
dc.contributor.authorFouquet, Pen_AU
dc.contributor.authorBohm, Men_AU
dc.contributor.authorSutton, Ien_AU
dc.contributor.authorDewhurst, CDen_AU
dc.contributor.authorAndersen, KHen_AU
dc.date.accessioned2011-08-16T04:20:44Zen_AU
dc.date.available2011-08-16T04:20:44Zen_AU
dc.date.issued2011-06-01en_AU
dc.date.statistics2011-08-11en_AU
dc.description.abstractThis paper describes the optimization of an entire neutron guide system, from the moderator to the sample position for several instruments simultaneously, using no more than a desktop computer and a few days of CPU time. This is made possible by merging two relatively advanced computational techniques. Neutron acceptance diagram shading is a fast new method for modelling neutron beams, using an approach based on polygons similar to those featuring in computer games. Optimization algorithms based on swarm intelligence are efficient and reliable ways to maximize numerically calculable figures of merit with many strongly coupled geometry parameters. Recent developments in these methods are described, as well as their combination to optimize the geometry of the H5 beamlines at the Institut Laue-Langevin. The optimization was such that all instruments simultaneously gain as much on-sample flux as possible by taking unused phase space from their neighbours, whilst no instrument suffers any losses in its useful flux. © 2011, Wiley-Blackwell.en_AU
dc.identifier.citationBentley, P. M., Fouquet, P., Bohm, M., Sutton, I., Dewhurst, C. D., & Andersen, K. H. (2011). Global optimization of an entire neutron guide hall. Journal of Applied Crystallography, 44(3), 483-488. doi:10.1107/S0021889811013124en_AU
dc.identifier.govdoc3483en_AU
dc.identifier.issn0021-8898en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleJournal of Applied Crystallographyen_AU
dc.identifier.pagination483-488en_AU
dc.identifier.urihttp://dx.doi.org/10.1107/S0021889811013124en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3693en_AU
dc.identifier.volume44en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectNeutron guidesen_AU
dc.subjectOptimizationen_AU
dc.subjectModeratorsen_AU
dc.subjectNeutron beamsen_AU
dc.subjectGeometryen_AU
dc.subjectDiagramsen_AU
dc.titleGlobal optimization of an entire neutron guide hallen_AU
dc.typeJournal Articleen_AU
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