1. Grid space coating-updates 05/01/2012
Anil Mane and Jeffrey Elam
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2. Internal parts needed for a 8”x8” tile
Objective
Build a 8”x8” frugal tile MCPs based detector
Internal parts needed for a 8”x8” tile
Main internal parts:
a) Two 8”x8” MCPs
b) Two 2mm grid spacers
c) One 4.45mm grid spacer
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3. What we have for 8”x8” tile?
Layer
Thickness (mm)
R Layer(MOhm)
V(V)
I(μA)
grid A 2
1.7
170.0
100
MCP 1
1.2 8
800.0
grid B
2.0
200.0
MCP 2
10.0
1000.0
grid C
4.45
3.6
360.0
Total
10.85
25.3
2530.0
Both MCP1 (8M) and MCP2 (10M) UCB and shows stable resistance
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4. Photograph of Grid spacers:
Note:
Many thanks to Dean and his team
for NiCr electrode deposition
GS 4.45mm
GS 2mm
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5. Grid spacers I-V data:
If needed we will make another set of grid spaces
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6. Plan for demountable:
Baking of all the demountable internal parts in 150C.
Baking of top plate in new 100C.
Assemble in clean ALD lab (ready).
Testing demountable at APS.
Good luck to LAPD group!!
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