Dresden 2014 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 34: Poster Session

MM 34.8: Poster

Dienstag, 1. April 2014, 18:00–20:00, P4

Simulation of Grazing-Incidence Small-Angle Scattering on Cu nano-size clustersCeline Durniak1, •Marina Ganeva1, Christiane A. Helm2, Rainer Hippler2, Oxana Ivanova1, Gennady Pospelov1, Walter Van Herck1, and Joachim Wuttke11Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH, Outstation at MLZ, Garching, Germany — 2Institut für Physik, Universität Greifswald, Greifswald, Germany

Grazing-incidence small-angle scattering (GISAS) is increasingly used to investigate the structural properties of thin films, layered materials, deposited nanoparticles and many others. To prepare a successful experiment and to analyze the measured data, appropriate simulations are required.

BornAgain [1] is a multi-platform open-source project that aims at supporting scientists in the analysis and fitting of their GISAS data, both for synchrotron (GISAXS) and neutron (GISANS) facilities. It is provided with a sample model and an instrument model accounting for the resolution effects, and simulates the scattering process using the distorted-wave Born approximation (DWBA).

Here we show GISAXS and GISANS images simulated using BornAgain. The influence of the sample properties and experimental parameters on the scattering pattern is discussed. Cu clusters, produced using a DC magnetron-based gas aggregation source and deposited to a Si substrate, are taken as a case study.

[1] http://apps.jcns.fz-juelich.de/doku/sc/bornagain:start

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