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OverviewModulation spectroscoy 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 hightransmission, white beam selectors of the multislit type, such as Fourier or statistical choppers of highfrequency modulated spinflippers. 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, but classifying each conceivable history either as a high-probability event, based on the actual observed state of the neutron selector. So far the principle has been successfully applied to powder diffraction, but seems to offer extra degrees of freedom, if applied to measuring dispersion curves of coherent exitations, such as phonons in single crystals. Full Product DetailsAuthor: Pekka Hiismaki (Vtt Chemical Tech, Finland)Publisher: World Scientific Publishing Co Pte Ltd Imprint: World Scientific Publishing Co Pte Ltd Volume: 1 ISBN: 9789810227463ISBN 10: 9810227469 Pages: 188 Publication Date: 11 July 1997 Audience: College/higher education , Professional and scholarly , Postgraduate, Research & Scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Out of stock The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsHistorical review; statistical classification of modulation schemes; pulsed modulation; pseudorandom modulation; golay code modulation; Fourier modulation; reverse time-of-flight principle; powder diffraction application to crystallography; application to residual strain determination; prospects for spectroscopy of coherent excitations.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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