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17–19 Sept 2018
Fakultät für Maschinenwesen der Technischen Universität München
Europe/Berlin timezone

Laser-neutron pump-probe experiment at the neutron time-of-flight spectrometer TOFTOF

17 Sept 2018, 16:30
1h 30m
Fakultät für Maschinenwesen der Technischen Universität München

Fakultät für Maschinenwesen der Technischen Universität München

Boltzmannstraße 15 85748 Garching b. München
Poster P1 Instrumentation and methods Poster session 1

Speaker

Dominik Schwaiger (TUM Physik E13)

Description

Photosynthesis is one of the key mechanisms for “energy generation” in nature. It is controlled and driven by photoactive proteins. Their functionality is critically influenced by molecular movements in the range of ps – ns and sub-Å – nm. For comprehensive investigations of such systems it is necessary to gain information about the connection of their dynamics and functionality during and shortly after activation. The setup of the neutron time-of-flight spectrometer TOFTOF at MLZ-Garching is well suited for experiments, using quasielastic neutron scattering (QENS), in order to observe such, energetically low, motions in unordered materials.
Therefore, at the instrument TOFTOF a novel sample environment system is to be installed. It will allow illumination of the sample during neutron measurement with light of specific wavelength. It is planned to apply the new system for photosensitive proteins, which undergo a photocycle, associated with the process of “energy generation”, triggered by the absorption of a photon.
On the poster I will give an overview about the new setup and hopefully first results of measurement campaigns.

Primary author

Dominik Schwaiger (TUM Physik E13)

Co-authors

Dr Wiebke Lohstroh (TUM - FRM2) Prof. Peter Müller-Buschbaum (TUM Physik E13)

Presentation materials

There are no materials yet.