22 lines
1.6 KiB
TeX
22 lines
1.6 KiB
TeX
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Within the framework of the ESRF Phase II Upgrade Programme, a new state-of-the-art end station for the high-energy beamline ID31 is under development.
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Research in many scientific areas such as material and life sciences are increasingly looking for instruments with higher spatial resolution.
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The design of the new end station will enable many hard X-ray characterization techniques such as reflectivity, wide angle diffraction and diffraction tomography.
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The need of great versatility induces many constrains on the end station such as combining \emph{large stroke} (\(\approx\SI{10}{\milli\metre}\)), \emph{high precision} (\(\approx\SI{10}{\nano\metre}\)) while accepting samples with mass ranging from \(\SI{1}{\kilo\gram}\) to \(\SI{50}{\kilo\gram}\).
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Many positioning end stations have been developed with an increasing positioning precision \cite{martinez2016,DucotteMEDSI2016,ogurreck2013nanotomography}.
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However, when nanometer precision is needed, thermal expansion and vibrations are becoming the main source of positioning error that cannot be compensated by encoders used for each stage.
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Therefore, a direct metrology system is usually needed \cite{DucotteMEDSI2016}.
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The aim of this study is to \emph{develop a short stroke Stewart platform that actively stabilize the sample position and compensate for all sources of perturbations and imperfection}.
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\begin{tikzfigure}[Schematic of the Tomography Experiment]
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\label{fig:exp_full_setup}
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\centering
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\includegraphics[width=0.95\linewidth]{./figs/exp_full_setup.pdf}
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\end{tikzfigure}
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%%% TeX-master: "2018 - Student Day.tex" ***
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