Collaboration Meeting Argonne National Laboratory June 10-11, 2010 Mechanical Design of Glass Tiles...
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Transcript of Collaboration Meeting Argonne National Laboratory June 10-11, 2010 Mechanical Design of Glass Tiles...
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
Inside-Out Glass Tile with Bottom Anode Exploded View
Signal is Differential on Traces – the ‘Ground’ is inside Vacuum
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
Top Anode Pattern on inside surface of Tile base - Version 1 Top Anode Pattern - Version 2
Smaller Strip inter-connect gives better RF characteristics
Anode Strips
2 x 3 Super-Module Tray and Tile Design
Super Module Concept Sketch and Full Scale Assembly
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
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
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
Open Design Issues
1. Spacer tolerances
2. Getter Placement and Attachment
3. Cabling and Strain Relief
4. Mounting
5. ?