Gains from the upgrade of the cold neutron triple-axis spectrometer FLEXX at the BER-II reactor

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dc.contributor.authorLe, MDen_AU
dc.contributor.authorQuintero-Castro, DLen_AU
dc.contributor.authorToft-Petersen, Ren_AU
dc.contributor.authorGroitl, Fen_AU
dc.contributor.authorSkoulatos, Men_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorHabicht, Ken_AU
dc.date.accessioned2013-09-11T00:52:58Zen_AU
dc.date.available2013-09-11T00:52:58Zen_AU
dc.date.issued2013-11-21en_AU
dc.date.statistics2013-09-11en_AU
dc.description.abstractThe upgrade of the cold neutron triple-axis spectrometer FLEXX is described. We discuss the characterisation of the gains from the new primary spectrometer, including a larger guide and double focussing monochromator, and present measurements of the energy and momentum resolution and of the neutron flux of the instrument. We found an order of magnitude gain in intensity (at the cost of coarser momentum resolution), and that the incoherent elastic energy widths are measurably narrower than before the upgrade. The much improved count rate should allow the use of smaller single crystals samples and thus enable the upgraded FLEXX spectrometer to continue making leading edge measurements. © 2013, Elsevier Ltd.en_AU
dc.identifier.citationLe, M. D., Quintero-Castro, D. L., Toft-Petersen, R., Groitl, F., Skoulatos, M., Rule, K. C., & Habicht, K. (2013). Gains from the upgrade of the cold neutron triple-axis spectrometer FLEXX at the BER-II reactor. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 729, 220-226. doi:10.1016/j.nima.2013.07.007en_AU
dc.identifier.govdoc5048en_AU
dc.identifier.issn0168-9002en_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipmenten_AU
dc.identifier.pagination220-226en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.nima.2013.07.007en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4678en_AU
dc.identifier.volume729en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectNeutronsen_AU
dc.subjectMonochromatorsen_AU
dc.subjectSpectrometersen_AU
dc.subjectCrystalsen_AU
dc.subjectVelocityen_AU
dc.subjectDispersionsen_AU
dc.titleGains from the upgrade of the cold neutron triple-axis spectrometer FLEXX at the BER-II reactoren_AU
dc.typeJournal Articleen_AU
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