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\chapter{Beam optical components:
Arms, slits, collimators, and filters}
This chapter contains a number of optical components
that is used to modify the neutron beam in various ways,
as well as the ``generic'' component \textbf{Arm}.
\index{Library!Components!optics}
\index{Optics|textbf}

\input{optics/Arm}

\input{optics/Slit}

\input{optics/Beamstop}

\input{optics/Filter}

\newpage
\input{optics/Collimator_linear}

\input{optics/Collimator_radial}

\newpage
\chapter{Reflecting optical components: mirrors, and guides}
\index{Optics|textbf}

This section describes advanced neutron optical
components such as supermirrors and guides as well as various rotating choppers.
A description of the reflectivity of a supermirror is found
in section~\ref{s:mirror}.

\input{optics/Guide}

\chapter{Moving optical components:
Choppers and velocity selectors}
We list in this chapter some moving optical components,
like choppers, that may be used for TOF class instrument simulations,
and velocity selector used for partially monochromatize continuous beams.
\index{Library!Components!optics}
\index{Optics|textbf}

\input{optics/DiskChopper}

\newpage
\input{optics/FermiChopper}

\input{optics/Vitess_ChopperFermi}

\newpage
\input{optics/V_selector}
\input{optics/Selector}

% there follows a chapter
\newpage
\input{optics/monochromator}
