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OverviewModulation spectrometry of neutrons refers to a measuring principle, characterized by classification of neutron histories in a probabilistic way, not the usual deterministic way. In order to accomplish this, neutron beams entering the sample are modulated by high-transmission, white-beam selectors of the multislit type, such as Fourier or statistical choppers or high-frequency-modulated spin-flippers. In this scheme it is impossible to decide in a unique way through which particular slit any single neutron passed, but the distribution of histories for a large population of neutrons can nevertheless be correctly obtained, by classifying each conceivable history either as a high-probability or as a low-probability event, based on the actual observed state of the neutron selector. So far the principle has been successfully applied to powder diffraction, but it seems to offer extra degrees of freedom if applied to measuring dispersion curves of coherent excitations, such as phonons in single crystals.Contents: Historical ReviewStatistical Classification of Modulation SchemesPulse ModulationPseudo-random ModulationGolay Code ModulationFourier ModulationReverse Time-of-Flight Principle and Its ImplementationFourier Modulation at Pulsed SourcesDiffractometry ApplicationsProspects for Measuring Single Crystal ExcitationsReadership: Experimental physicists, neutron scientists and crystallographers. Full Product DetailsAuthor: Pekka Hiismaki , P KiPublisher: World Scientific Publishing Company Imprint: World Scientific Publishing Company ISBN: 9781299663633ISBN 10: 129966363 Pages: 189 Publication Date: 01 January 1997 Audience: General/trade , General Format: Electronic book text Publisher's Status: Active Availability: In stock We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |