\addvspace {10\p@ } \addvspace {10\p@ } \contentsline {figure}{\numberline {2.1}{\ignorespaces Module baseplate (front view).}}{6} \contentsline {figure}{\numberline {2.2}{\ignorespaces The beam-pipe O-ring and the beam-pipe blanking plug.}}{7} \contentsline {figure}{\numberline {2.3}{\ignorespaces Example of a vacuum relieved screw.}}{7} \contentsline {figure}{\numberline {2.4}{\ignorespaces Sixteen pin glass feedthrough.}}{8} \contentsline {figure}{\numberline {2.5}{\ignorespaces Glass feedthrough O-ring.}}{9} \contentsline {figure}{\numberline {2.6}{\ignorespaces SwageloK fitting.}}{9} \contentsline {figure}{\numberline {2.7}{\ignorespaces Vacuum feedthrough conhex connector.}}{10} \contentsline {figure}{\numberline {2.8}{\ignorespaces Baseplate support leg.}}{10} \contentsline {figure}{\numberline {2.9}{\ignorespaces Module baseplate, showing the three baseplate PCB's.}}{11} \addvspace {10\p@ } \contentsline {figure}{\numberline {3.1}{\ignorespaces CsI scintillator mount (A0-32/8045).}}{14} \contentsline {figure}{\numberline {3.2}{\ignorespaces CsI scintillator mount support leg.}}{15} \contentsline {figure}{\numberline {3.3}{\ignorespaces CsI scintillator (side view).}}{16} \contentsline {figure}{\numberline {3.4}{\ignorespaces CsI scintillator (back view).}}{16} \contentsline {figure}{\numberline {3.5}{\ignorespaces CsI scintillator configuration.}}{17} \addvspace {10\p@ } \contentsline {figure}{\numberline {4.1}{\ignorespaces PSD PCB (top). PSD (bottom).}}{19} \contentsline {figure}{\numberline {4.2}{\ignorespaces Side view of a MEGHA module.}}{20} \contentsline {figure}{\numberline {4.3}{\ignorespaces Anode grid (top). Cathode grid (bottom).}}{21} \contentsline {figure}{\numberline {4.4}{\ignorespaces Anode grid (top). Cathode grid (bottom).}}{23} \addvspace {10\p@ } \contentsline {figure}{\numberline {5.1}{\ignorespaces Module baseplate (back view).}}{24} \contentsline {figure}{\numberline {5.2}{\ignorespaces Experimental setup for pre-amplifier pack pulser testing.}}{26} \contentsline {figure}{\numberline {5.3}{\ignorespaces CsI scintillator pin allocation.}}{27} \contentsline {figure}{\numberline {5.4}{\ignorespaces Experimental setup for CsI scintillator pulser testing.}}{28} \contentsline {figure}{\numberline {5.5}{\ignorespaces Experimental setup for $\alpha $-source testing.}}{29} \addvspace {10\p@ } \contentsline {figure}{\numberline {6.1}{\ignorespaces MEGHA mylar window (top). MEGHA window clamp (bottom).}}{31} \contentsline {figure}{\numberline {6.2}{\ignorespaces Centre module mylar window (top). Centre module window clamp (bottom).}}{32} \addvspace {10\p@ } \addvspace {10\p@ } \addvspace {10\p@ }