Figure 2
The detector assembly on a vacuum flange. A glass plate sits atop the anode board, and the MCPs are inserted into an aperture in it. The gain MCPs are the dark plates of 33 mm diameter, and the cathode MCP is the light-green plate with a section broken off its circular outline in a holder flipped over to the left. The high voltages are brought to the MCPs with annular-shaped pieces of metalized Kapton that have tabs sticking into grooves in the glass plate, which end in screw terminals. One such piece of metalized Kapton is shown partially lifted up. |