SANS time-of-flight instrument Bilby at ACNS, ANSTO

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dc.contributor.authorSokolova, AVen_AU
dc.contributor.authorWhitten, AEen_AU
dc.contributor.authorde Campo, Len_AU
dc.date.accessioned2023-05-07T22:48:37Zen_AU
dc.date.available2023-05-07T22:48:37Zen_AU
dc.date.issued2020-11-11en_AU
dc.date.statistics2023-05-05en_AU
dc.description.abstractANSTO for more than ten years successfully operates Small Angle Neutron Scattering (SANS) instrument Quokka [1] and in 2016 commenced user operation of the second SANS instrument, Bilby [2]. Ultra-small angle scattering machine Kookaburra [3] is completing the set of the SANS instruments at ANSTO. Bilby exploits neutron Time-of-Flight (ToF) to extend the measurable Q-range, over and above what is possible on a conventional reactor-based monochromatic SANS instrument. In ToF mode, the choppers are used to create neutron pulses of variable (~3% ‒ 30%) wavelength resolution. Two arrays of position-sensitive detectors in combination with utilizing of wide wavelength range provide the capability to collect scattering data of wide angular diapason without changing the experimental set-up (maximum accessible Q on the instrument is 0.001-1.8Å-1). Additionally to the ToF, Bilby can operate in monochromatic mode. The question is how the advanced design features can be applied to the real scientific questions. In short, having a large dynamic range available in one go opens up a possibility to study complex systems like micelles and hierarchical materials. Additionally, there is a range of sample environments available allowing to change conditions in situ, which is priceless for study a range of samples stretching from colloids to metals. In my presentation, I will be giving several examples demonstrating how ToF SANS can bring light to structural changes of the surfactant wormlike micelles structure under various conditions. Some cases will be presented to show that the monochromatic mode is also the one producing valuable results. The main accent will be made on a recently published work, done solely on Bilby along with examples of combining SANS and USANS techniques. © The authors.en_AU
dc.identifier.citationSokolova, A., Whitten, A., & de Campo, L. (2020). SANS time-of-flight instrument Bilby at ACNS, ANSTO. Paper presented to the ANBUG-AINSE Neutron Scattering Symposium, AANSS 2020, Virtual Meeting, 11th - 13th November 2020. (pp. 111). Retrieved from: https://events01.synchrotron.org.au/event/125/contributions/3684/contribution.pdfen_AU
dc.identifier.conferenceenddate13 November 2020en_AU
dc.identifier.conferencenameANBUG-AINSE Neutron Scattering Symposium, AANSS 2020en_AU
dc.identifier.conferenceplaceVirtual Meetingen_AU
dc.identifier.conferencestartdate11 November 2020en_AU
dc.identifier.pagination111en_AU
dc.identifier.urihttps://events01.synchrotron.org.au/event/125/contributions/3684/contribution.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/15033en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineering (AINSE)en_AU
dc.subjectANSTOen_AU
dc.subjectAustralian organizationsen_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectNeutronsen_AU
dc.subjectWavelengthsen_AU
dc.subjectNeutron choppersen_AU
dc.titleSANS time-of-flight instrument Bilby at ACNS, ANSTOen_AU
dc.typeConference Abstracten_AU
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