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dc.contributor.authorGray, Evanen_US
dc.contributor.authorChatzidimitriou-Dreismann, C.en_US
dc.contributor.authorBlach, Tomaszen_US
dc.date.accessioned2017-05-03T11:32:50Z
dc.date.available2017-05-03T11:32:50Z
dc.date.issued2012en_US
dc.date.modified2013-06-06T23:10:22Z
dc.identifier.issn01689002en_US
dc.identifier.doi10.1016/j.nima.2011.09.025en_US
dc.identifier.urihttp://hdl.handle.net/10072/47725
dc.description.abstractThe effects of small changes in flight-path parameters (primary and secondary flight paths, detector angles), and of displacement of the sample along the beam axis away from its ideal position, are examined for an inelastic time-of-flight (TOF) neutron spectrometer, emphasising the deep-inelastic regime. The aim was to develop a rational basis for deciding what measured shifts in the positions of spectral peaks could be regarded as reliable in the light of the uncertainties in the calibrated flight-path parameters. Uncertainty in the length of the primary or secondary flight path has the least effect on the positions of the peaks of H, D and He, which are dominated by the accuracy of the calibration of the detector angles. This aspect of the calibration of a TOF spectrometer therefore demands close attention to achieve reliable outcomes where the position of the peaks is of significant scientific interest and is discussed in detail. The corresponding sensitivities of the position of peak of the Compton profile, J(y), to flight-path parameters and sample position are also examined, focusing on the comparability across experiments of results for H, D and He. We show that positioning the sample to within a fewmmof the ideal position is required to ensure good comparability between experiments if data from detectors at high forward angles are to be reliably interpreted.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherElsevieren_US
dc.publisher.placeNetherlandsen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom64en_US
dc.relation.ispartofpageto69en_US
dc.relation.ispartofissue1en_US
dc.relation.ispartofjournalNuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipmenten_US
dc.relation.ispartofvolume661en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchAtomic and Molecular Physicsen_US
dc.subject.fieldofresearchcode020201en_US
dc.titleSensitivity of peak positions to flight-path parameters in a deep-inelastic scattering neutron TOF spectrometeren_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2012
gro.hasfulltextNo Full Text


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