1. Collaboration Meeting Argonne National Laboratory June 10-11, 2010 Mechanical Design of Glass Tiles and Trays Rich Northrop University of Chicago Second Large Area Fast Photo-Detectors Collaboration Meeting 6.10.10

2. Inside-Out Glass Tile with Bottom Anode Exploded View Signal is Differential on Traces – the ‘Ground’ is inside Vacuum

3. High Voltage Distribution on Inside of Window The High Voltage is transmitted to the Photocathode and the four MCP Electrode surfaces by the metalized pattern On the Bottom surface of the Tile Window

4. Top Anode Pattern on inside surface of Tile base - Version 1Top Anode Pattern - Version 2 Smaller Strip inter-connect gives better RF characteristics Anode Strips

5. 2 x 3 Super-Module Tray and Tile Design

6. Super Module Concept Sketch and Full Scale Assembly

7. Recent Stress Analysis New suggestion to change from a 5 x 5 spacer pattern to a 4 x 4 spacer pattern might be an improvement

8. Fabricated per unit cost estimates 30 1000 3000 10,000 100,000 Window (1@) $82 20 15 12 10 Side wall (1@) $35 30 25 22 20 Base plate (1@) $20 13 11 10 8 Rod Spacers (75@) $2 1.50 1 1 1 Total $287 $175.50 $126 $119 $113 The above prices are for water jet cut B33 glass, tol. +- 0.010, except rod spacers +000 -0.004 ---------Quotations--------- -----------------------Cost estimates---------------------- Inside-Out Mechanical Component Costs w/ Anode Pattern w/ No-Hands HV pattern, No PC

9. Fabricated per unit cost estimates 30 1000 3000 10,000 100,000 FR4 PCB 27 x 8.66 $44 21 20 20 19 Glass Epoxy Honeycomb Panel $45 40 39 38 37 ---------Quotations--------- -----------------------Cost estimates---------------------- Super-Module Component Costs

10. Open Design Issues 1.Spacer tolerances 2.Getter Placement and Attachment 3.Cabling and Strain Relief 4.Mounting 5.?