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Seminars

The Institut Laue-Langevin (ILL) is the world's leading facility in neutron science and technology. It operates the most intense neutron source on earth in Grenoble in the south-east of France.

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Colloquia, seminars & talks

What large-scale facilities have taught us about the Liquid-Liquid Interface

General ILL Seminar organised by College 9
Wednesday, January 17, 2018, 11h00
Seminar Room, 1st Floor, ILL 4

Prof. Robert Dryfe

University of Manchester, Oxford Road, Manchester M13 9PL, UK, robert.dryfe@manchester.ac.uk

The molecular scale structure of the liquid-liquid interface has been an enduring topic of interest for scientists from various domains. Advances in computation have provided insights into local structure and dynamics at this interface, but such advances require parallel developments in relevant experimental techniques. Neutron reflection has played a part here, along with X-ray scattering. Our own efforts have centred on the use of X-ray absorption spectroscopy to probe dynamic processes, specifically metal nucleation and growth, at the liquid-liquid interface. Electrochemical methods present the ideal way to "trigger" growth in a synchrotron-based environment: this talk will describe how the electrified interface can be used to understand the liquid-liquid interface in general".

I. Hoffmann
(College 9 Secretary)

External visitors may ask for a site access to tellier(at)ill.eu

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Probing Symmetron Fields with Bouncing Neutrons

General ILL Seminar organised by College III
Tuesday, 6 February 2018 at 11:00 a.m
Seminar room 7/8, ILL 1

Dr. Mario Pitschmann

TU Wien, Atominstitut, Nuclear Physics, Operngasse 9, A-1040 Wien, Austria, mario.pitschmann@tuwien.ac.at

The smallness of the cosmological constant is troubling from a theoretical point of view and led to the introduction of hypothetical new scalar fields. Since such fields have escaped all experimental tests so far, one may assume that some kind of screening mechanism is at work. A natural screening mechanism based on spontaneous symmetry breaking is realized by symmetron fields. Such a hypothetical field would change the energy of quantum states of ultra-cold neutrons bound in the gravitational potential of the earth. This allows to search for symmetrons for a large region of their parameters.

Tobias Jenke
(College III Secretary)

External visitors may ask for a site access to tellier(at)ill.eu

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