Small angle and inelastic scattering investigation of nanodiamonds

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dc.contributor.authorOsborn, JCen_AU
dc.contributor.authorErsez, Ten_AU
dc.contributor.authorLu, Wen_AU
dc.date.accessioned2021-08-24T23:15:57Zen_AU
dc.date.available2021-08-24T23:15:57Zen_AU
dc.date.issued2017-07-12en_AU
dc.date.statistics2021-08-19en_AU
dc.description.abstractNanodiamond material (~5 nm diameter diamond particles) has the potential to be used in the design of the next generation of cold neutron sources (CNS). It is hoped that a blanket layer of this material surrounding the CNS moderator vessel will reflect very cold neutrons back into the moderator, thus reducing leakage through the vessel wall. In this work nanodiamonds produced by two different techniques have been studied, namely those prepared by the detonation method and by laser ablation of a carbon-hydrocarbon mixture. The analysis of experimental data from USANS, SANS and SAXS measurements performed at Australia’s OPAL reactor suggests that large scale structure such as clustering or aggregation of nanodiamond particles may be determining the scattering. The generalised density of states (GDOS) obtained at 20 K from TOF inelastic neutron scattering measurements showed no low energy states. The GDOS of heated and unheated samples at 300 K are consistent with the proposition that thermal treatment of nanodiamond samples eliminates hydrogen in the form of water absorbed on the nanoparticle surface. Hydrogen bonded to carbon is difficult to remove by thermal treatment.en_AU
dc.identifier.citationOsborn, J., Ersez, T., & Lu, W. (2017). Small angle and inelastic scattering investigation of nanodiamonds. Paper presented at ICNS 2017 (International Conference on Neutron Scattering), Daejeon, South Korea, 9 to 13 July 2017. Retrieved from: http://www.icns2017.org/program.phpen_AU
dc.identifier.conferenceenddate13 July 2017en_AU
dc.identifier.conferencenameICNS 2017 (International Conference on Neutron Scattering)en_AU
dc.identifier.conferenceplaceDaejeon, South Koreaen_AU
dc.identifier.conferencestartdate9 July 2017en_AU
dc.identifier.urihttp://www.icns2017.org/program.phpen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11472en_AU
dc.language.isoenen_AU
dc.publisherInternational Conference on Neutron Scatteringen_AU
dc.subjectCold neutronsen_AU
dc.subjectOPAL Reactoren_AU
dc.subjectANSTOen_AU
dc.subjectAustraliaen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectHydrogenen_AU
dc.subjectWateren_AU
dc.subjectCarbonen_AU
dc.titleSmall angle and inelastic scattering investigation of nanodiamondsen_AU
dc.typeConference Abstracten_AU
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