50 Years of Neutron Backscattering 2nd - 3rd September 2016 in Garching near Munich MLZ is a cooperation between: Dear participant, Cover Pictures: The first backscattering instrument at FRM (credit: TUM) Welcome to the Anniversary Workshop “50 Years of Neutron Backscattering Spectrosco- IN16B at ILL (credit: Wolfgang Burat) py” which is being held on the 2nd and 3rd of September 2016. The site of the workshop OSIRIS analyser installation" (credit: ISIS faciltiy) is the research campus of Garching, in the direct neighbourhood of the “Atomic Egg”, which is considered to be the cradle of Neutron Backscattering Spectroscopy. In 1966, this new technique was proposed by Professor Heinz Maier-Leibnitz and shortly after, experiments carried out by Berthold Alefeld at the Atomic Egg, showed that this new concept would be extremely promising. The backscattering technique had an improved energy resolution that opened the door to previously unseen phenomena and enabled the exploration of longer time scale mo- lecular motions in a plethora of systems. Since the first results, Backscattering spectros- copy with neutrons has contributed to active fundamental research in the fields of life sciences, energy materials, complex systems. It has proved an essential tool to study dynamics in polymers and biological systems, the glass transition in different types of glass formers, in confinement and near surfaces, the reorientational motions in crystals, rotational tunnelling, diffusion in metals and alloys, and even spin excitations and nucle- ar hyperfine splitting. Over the years backscattering spectroscopy was introduced into all intense neutron sources worldwide, and also at synchrotron sources, and has continuously been devel- oped. We invite you to celebrate with us the 50th birthday of Neutron Backscattering Spectros- copy and all the people that have contributed to its history. The workshop will start with a historical view on the early times and places of Neutron Backscattering: the FRM I, Garching, the Dido reactor in Jülich, the Institute Laue-Langevin in Grenoble (France) Bavarian State Ministry of Education, Science and the Arts and the ISIS Pulsed Neutron and Muon Source in Didcot (UK). Looking to the future, the workshop aims to showcase the importance of the Neutron Backscattering technique for scientific progress and the impact of key instrumentation advances, including innovative ideas for backscattering at both pulsed and reactor neu- tron sources. The Heinz Maier-Leibnitz Zentrum (MLZ): The Heinz Maier-Leibnitz Zentrum is a leading centre for cutting-edge research with neutrons and positrons. Operating as a user facil- It is our pleasure to welcome you to this milestone event and we hope you will enjoy ity, the MLZ offers a unique suite of high-performance neutron scattering instruments. fruitful scientific discussions in a pleasant Bavarian atmosphere. This cooperation involves the Technische Universität München, the Forschungszen- trum Jülich and the Helmholtz-Zentrum Geesthacht. The MLZ is funded by the Ger- man Federal Ministry of Education and Research, together with the Bavarian State Ministry of Education, Science and the Arts and the partners of the cooperation. The Forschungs-Neutronenquelle Heinz-Maier-Leibnitz (FRM II): The Forschungs-Neutronen- quelle Heinz-Maier-Leibnitz provides neutron beams for the scientific experiments at the Winfried Petry Thomas Brückel Bernhard Frick Victoria Garcia-Sakai MLZ. The FRM II is operated by the Technische Universität München and is funded by the Bavarian State Ministry of Education, Science and the Arts. Contents Contents 4 Science overview from Backscattering Workhorses Science from IRIS and OSIRIS ......................................................................................................37 Venue 8 Science from IN13 ��������������������������������������������������������������������������������������������������������������������������39 Science from the High Flux Backscattering Spectrometer .............................................................41 Committees 9 From classical applications to new materials – science done at SPHERES ..................................43 Research Landscape in Munich 50yrs ago Science from IN16B........................................................................................................................45 Backscattering spectroscopy: How it all began .............................................................................. 11 Science from BASIS �����������������������������������������������������������������������������������������������������������������������47 Historical Talks on Neutron Backscattering Poster Session The pathway of neutron backscattering: from Garching to Grenoble .............................................13 Pushing the resolution limit of neutron backscattering: A GaAs option for IN16B at ILL ����������������49 First ToF Backscattering at Spallation Sources ������������������������������������������������������������������������������15 Water dynamics in glass ionomer cements ....................................................................................51 Overview of the low temperature cation local dynamics in (CH3NH3)PbI3 perovskite .....................53 Innovations in Backscattering Intracellular Water – an Overlooked Target of Drug Activity? Cisplatin´s Impact Neutron backscattering at NIST .....................................................................................................17 in Breast Cancer Cells Probed by Neutron Techniques �����������������������������������������������������������������55 The Design and Construction of the Spallation Neutron Source near-backscattering Dynamics of pharmacologically active compounds - felodipine and lacidipine: QENS and spectrometer BaSiS........................................................................................................................19 NMR study combined with molecular dynamics and density functional theory simulations ...........57 SPHERES: the SPectrometer for High Energy RESolution at FRM II............................................21 Quasi-Elastic Neutron Scattering Studies on Solid Electrolytes for solid-state Lithium Batteries ��59 A performance boost for reactor backscattering - IN16B at ILL ......................................................23 Understanding the mechanism of proton conductivity in Metal-Organic Frameworks by QENS....61 A time-of-flight type near backscattering spectrometer DNA in J-PARC ........................................25 Influence of straight medium chain alcohols on the dynamics of phospholipid model membranes ..........................................................................................................................63 Major Science Fields tackled with Backscattering Investigation of Molecular Dynamics: Exceed the Gaussian Approximation ..................................65 Almost 50 years of rotational tunneling ..........................................................................................27 Protein diffusion in crowded solutions ............................................................................................67 On the confinement of liquids in mesoporous hosts �����������������������������������������������������������������������29 Use of back scattering other than in a pi - spectrometer ................................................................69 Polymer Dynamics: Highlights from Neutron Backscattering Spectroscopy ����������������������������������31 Perspectives for very high pressure experiments on backscattering instruments: IN16b ..............71 Water and proton dynamics in fuel cells .........................................................................................33 Molecular dynamics of conjugated polymers and its influence on organic solar cell performance 73 Intrinsic Proton Dynamics in Hydrous Silicate Melts as seen by QENS at Photoactivation Reduces Side-Chain Dynamics of a LOV Photoreceptor �������������������������������������75 elevated Temperature and Pressure ����������������������������������������������������������������������������������������������35 Saccharide-Based Systems for Food Science and Biomedical Applications ���������������������������������77 An Instrument-Concept for Dynamics of Complex (Bio-) System from Elastic Scattering..............79 Tunneling of the methyl protons of mesitylene trapped in a tris-(bromo-phenoxy)-triazine ������������81 4 5 Major Science Fields tackled with Backscattering How neutrons perceive the formation of a glass, or, how to become a neutron scattering user thanks to backscattering! .......................................................................................83 The Protein Dynamical Transition from Back-Scattering Displacements ���������������������������������������85 Recent science from Backscattering – Contributed talks My Experience with Neutron Backscattering Spectrometer �����������������������������������������������������������87 The short life of MARS ...................................................................................................................89 High Pressure Cell for Simultaneous Neutron Scattering and Dielectric Spectroscopy .................91 Sorbate Dynamics in Zeolite Catalysts: Tandem QENS and Simulation Studies ...........................93 Understanding ion transport in fuel cells: towards in-operando experiments .................................95 QENS Studies of conjugated polymer MEH-PPV...........................................................................97