\contentsline {chapter}{\numberline {4}Photon source}{2}
\contentsline {section}{\numberline {4.1}Essential features}{3}
\contentsline {section}{\numberline {4.2}Use of collimation}{5}
\contentsline {section}{\numberline {4.3}Choice of radiator}{14}
\contentsline {section}{\numberline {4.4}Crystal quality}{16}
\contentsline {section}{\numberline {4.5}Crystal thickness}{22}
\contentsline {section}{\numberline {4.6}Crystal mount}{25}
\contentsline {section}{\numberline {4.7}Crystal alignment and monitoring}{27}
\contentsline {section}{\numberline {4.8}Crystal lifetime}{28}