19 January (Thursday), 11:00am, B83 Conference Room. Hosted by Garry McIntyre Prof John Evans Durham University, UK "Functional Inorganic Materials and Phase Transitions"
19 January (Thursday), 11:30am, B83 Conference Room. Hosted by Garry McIntyre Dr Ivana R. Evans Durham University, UK "Structural Studies of Energy Materials: Development of New Electrolytes for Solid Oxide Fuel Cell "
3 February (Friday), 11:00am, B83 Conference Room. Hosted by Andrew Nelson Cecile Dreiss "Self-assembling surfactants and cyclodextrins, a SANS perspective"
16 February (Thursday), 9:00am, B83 Conference Room Prue Beatton "ANSTO Minerals Event"
Prue Beatton x 3858
ANSTO Minerals Event
http://www.ansto.gov.au/BusinessServices/ANSTOMinerals/
23 February (Thursday), 11:00am, B83 Conference Room. Hosted by Paolo Imperia Arno Hiess European Spallation Source "Scientific Activities at the ESS"
24 February (Friday), 11:00am, B83 Conference Room. Hosted by Jitendra Mata Ramesh L. Gardas Indian Institute of Technology Madras "Ionic Liquids for the Extraction of Lanthanides and Actinides from Nitric Acid Medium "
30 March (Thursday), 11:00am, AINSE Theatre Mike James "What’s Brilliant and BR-GHT at the Australian Synchrotron"
4 April (Tuesday), 2:00pm, B83 Conference Room. Hosted by Vanessa Peterson Prof. Peter Notten "Neutron Depth Profiling: A challenging new method to in situ monitor Lithium in solid-state Li-ion batteries"
6 April (Thursday), 10:30am, B83 Conference Room. Hosted by Anton Stampfl Jose Periero "Be Filter Research Work Experience"
6 April (Thursday), 11:00am, B83 Conference Room. Hosted by Peter Holden Wolfgang Knecht "LP3 - Lund Protein Production Platform and DEMAX - DEuteration and MAcromolecular Xtallization "
6 April (Thursday), 11:30am, B83 Conference Room. Hosted by Peter Holden Hanna Wacklin "The European Spallation Source (ESS) chemical deuteration laboratory (DEULAB) and the European Deuteration Network "
4 May (Thursday), 11:00am, B83 Conference Room Staff Forum "ANSTO Staff Forum"
11 May (Thursday), 11:00am, B83 Conference Room. Hosted by Anna Paradowska Jamie J. Kruzic "Understanding the Structure-Mechanical Property Relationships for Bulk Metallic Glasses"
24 May (Wednesday), 11:00am, B83 Conference Room Masaaki Sugiyama Kyoto University "Neutron solution scattering for protein structure and dynamics -SANS and NSE"
25 May (Thursday), 11:00am, B83 Conference Room. Hosted by Chris Garvey Keyun Shou "Solution Structures of Intrinsically Disordered Proteins: The Case of COR15A"
About the talkIntrinsically disordered proteins (IDPs) are defined by their lack of secondary structure in dilute aqueous solution. Two of the best characterized plant IDPs are Cold Regulated (COR) 15A and COR15B from the model plant Arabidopsis thaliana. Both COR15 proteins are highly hydrophilic and predominantly unstructured in solution, but fold into amphipathic α-helices during drying or in the presence of high concentrations of low-molecular-mass crowding agents such as sucrose or glycerol. Due to their high conformational flexibility, no crystal structures are available for COR15A or COR15B and there are also no reported NMR spectra of both proteins. We investigated structural information of the COR15A protein with small angle neutron and x-ray scattering. The aim of this project is to determine the structural properties of COR15A at different concentrations of glycerol and trifluoroethanol to induce folding of the protein. About the speaker Keyun graduated from University of Sydney in 2015 and obtained a BSc first class honors degree in Chemistry and Mathematics. In 2016, she joined the department of physical chemistry at RWTH Aachen as a PhD student. Keyun spends most of her time working at Forschungszentrum Julich, which is one of the largest interdisciplinary research centers in Europe. At present, her research is focused on investigating protein interactions with neutron and X-ray small angle scattering, which is supervised by Dr Andresa Stadler and Dr Chris Garvey. She will also spend her last year of PhD here at ANSTO.
8 June (Thursday), 11:00am, B83 Conference Room. Hosted by Floriana (Filomena) Salvemini Anton S. Tremsin "Energy-resolved neutron imaging and its applications in materials research, optimization of crystal growth, development of novel nuclear fuels, heritage objects and other"
22 June (Thursday), 11:00am, B83 Conference Room. Hosted by Ondrej Muransky Prof. Xiaozhou Liao "Improving the Mechanical Properties of Metallic Materials via Nanostructuring"
18 July (Tuesday), 11:00am, B83 Conference Room Toby Peacock "Cooperative Research Centre’s Program and Working with Industry"
20 July (Thursday), 11:00am, B83 Conference Room Richard Mole "Inelastic Neutron Scattering and Linear Spin Wave Theory as a Tool for Molecular Magnetism"
26 July (Wednesday), 11:00am, B83 Conference Room Dr Sebastian Jaksch Jülich Centre for Neutron Science JCNS "Nanorheology: Using neutrons to discover the dynamics of biological membranes & A short glimpse into future instrumentation at ESS"
27 July (Thursday), 11:00am, B83 Conference Room. Hosted by Lyndon Edwards Dr Simon Middleburgh Westinghouse Sweden "Advances in Nuclear Fuel Materials for Gen IV and Accident Tolerant Fuel Concepts"
We are currently in a time of unprecedented development and acceleration within the nuclear industry, the likes of which has not been seen since the dawn of nuclear energy. Both economic and political pressures have focused the industry onto ambitious projects: revolutionary concepts are displacing evolutionary increments in both terms of reactor development and fuel development. Of course, not all goals will be met, but those that do will ensure that nuclear energy remains an important option in the global energy generation mix, and those that don’t may have other spin-off benefits in terms of technology and understanding to broaden and enhance the nuclear energy industry and other industries indirectly. Westinghouse has chosen to develop a lead-cooled fast reactor – the reasons for which will be discussed. The fuel selection process for the LFR will be outlined and the key benefits and drawbacks of each fuel concept discussed. The fuel development for LFR technology is highly linked with Westinghouse’s Accident Tolerant Fuels (ATF) programme. Unlike many other vendor’s ATF efforts, Westinghouse has a focus on not only developing a fuel product that will significantly reduce the hazards of accident scenarios – but also include a significant economic enhancement of nuclear fuel, considerably reducing the costs of operating the current nuclear reactor fleet.
17 August (Thursday), 11:00am, AINSE Theatre Kelly Cubbin "NSTLI Seminar placeholder"
7 September (Thursday), 9:00am, B83 Conference Room Sean Eldridge "OPAL Team Day Event"
14 September (Thursday), 11:00am, AINSE Theatre TBA "NSTLI Seminar Placeholder"
28 September (Thursday), 11:00am, B83 Conference Room Xiang Li "AONSA FELLOWSHIP AND SANS-U AT THE JRR-3M REACTOR"
12 October (Thursday), 11:00am, B83 Conference Room Jillian Taylforth "ANSTO board meeting "
17 October (Tuesday), 8:30am, B83 Conference Room Kristen Patchett "ANSTO Managers Forum"
2 November (Thursday), 8:00am, B83 Conference Room Sean Eldridge "OPAL team day workshops"
9 November (Thursday), 11:00am, AINSE Theatre TBA "NSTLI Seminar placeholder"
16 November (Thursday), 10:30am, B83 Conference Room. Hosted by Andrew Whitten Timothy Zurrer UNSW "What makes a good nanoparticle reference material? Probing the stabilisation structure of gold nanoparticles "
16 November (Thursday), 11:00am, B83 Conference Room. Hosted by Stephen Holt Justin Davies Gamma Irradiations, ANSTO "Scientific applications of gamma-irradiation"
28 November (Tuesday), 8:00am, B83 Conference Room Jill Taylforth "OPAL-SAFARI1-HFR Cooperation Meeting "
29 November (Wednesday), 8:00am, B83 Conference Room Jill Taylforth "OPAL-SAFARI1-HFR Cooperation Meeting "
30 November (Thursday), 8:00am, B83 Conference Room Jill Taylforth "OPAL-SAFARI1-HFR Cooperation Meeting "
4 December (Monday), 2:00pm, B83 Conference Room Harald Kleines "Motion control of the JCNS Neutron Instruments based on Siemens S7 PLCs and TANGO"
7 December (Thursday), 11:00am, B83 Conference Room Taku J Sato "Magnetic skyrmions; its thermal stability and electric-current effect"
Topological spin textures have attracted growing interest in the condensed matter physics community because of their topologically protected nature. One representative example of topological spin textures may be “magnetic skyrmion”, which is a swirling spin structure now confirmed in various chiral magnets, such as MnSi [1]. In this talk, we will introduce two of our recent findings in the field of magnetic skyrmion science.
First one is on the thermal stability of the insulating skyrmion-host compound Cu2OSeO3 [2,3]. Since Cu2OSeO3 is the only one insulating compound of this kind, it has attracted tremendous interests mainly on its multiferroic behavior [4]. The low-temperature H-T phase diagram of this compound was investigated by the two groups, however, there has been serious inconsistency. Seki et al. reported two skyrmion-lattice phases which are rotated by 30 degrees each other, whereas Adams et al. reported only one phase. To solve this puzzle, we have performed neutron small angle scattering (SANS) experiment with controlling the temperature and magnetic-field changing history [5, 6]. It was clearly observed that the different skyrmion-lattice phases can be stabilized under different H-T histories. We will report the detailed phase diagram investigations under different thermal histories, as well as its minute-scale kinetics.
Second one is on the skyrmion-lattice deformation under electric current in the prototypical skyrmion-host compound MnSi. It was reported that rotation of the skyrmion-lattice is generated under electric current, together with the thermal gradient [7]. We performed similar experiment under electric current with precisely eliminating thermal gradient, and found that the skyrmion lattice still rotates under a certain condition with its lattice deformed significantly. We will report details of temperature, field and electric current dependence of the skyrmion-lattice peaks.
[1] S. Mühlbauer et al., Science 323, 915 (2009); [2] S. Seki et al., Phys. Rev. B 85, 220406 (2012); [3] T. Adams et al., Phys. Rev. Lett. 108, 237204 (2012); [4] S. Seki et al., Science 336, 198 (2012); [5] K. Makino et al., Phys. Rev. B 95, 134412 (2017); [6] J. Reim et al., J. Phys.: Conf. Ser. 828, 012004 (2017); [3] F. Jonietz et al., Science 330, 1648 (2010).
19 December (Tuesday), 11:00am, AINSE Theatre TBA "NSTLI Seminar Placeholder"
