\addvspace {10\p@ } \contentsline {figure}{\numberline {3.1}{\ignorespaces Generic diagrams for hard photon production.}}{2} \contentsline {figure}{\numberline {3.2}{\ignorespaces Photon energy spectrum from the Compton back-scatter source}}{4} \contentsline {figure}{\numberline {3.3}{\ignorespaces Photon power spectrum from an oriented diamond radiator.}}{7}