Production - PowerPoint PPT Presentation

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Production

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Xray Tomograph. Site grid parameters from BOL0. Results so-far (so-good! ... RASNIK vs Tomograph. Study average Y,Z shifts of tube layers ... – PowerPoint PPT presentation

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Title: Production


1
Production QA of BOL chambers
  • Tomo results BOL0,2,3
  • Comparison Tomo and QA data
  • Production status

2
Xray Tomograph
Site grid parameters from BOL0
Analysis of Martin Woudstra
Results so-far (so-good!)
s
3
RMS along chamber
s
4
Closer Look
BOL 0
  • BOL 0,2,3 similar results
  • Y pitch between inner tube layers significantly
    larger 25 mm
  • Probably due to glue shrink of black glue DP490
    1o x0.7mm
  • also affects Y distance between ML 50 mm
  • Y pitch between outer tube layer close to design

s
5
RASNIK vs Tomograph
Rasnik on Xplate
  • Study average Y,Z shifts of tube layers
  • For RASNIK take average of two RASASS towers
    account for effect of Xplate sag
  • For Tomograph Results BOL0,2,3 from analysis
    M.Woudstra (NIKHEF)

s
6
Z shifts
s
7
Sag Compensation
BOL2
Layer 1
Start -15/2 um
  • During gluing of
  • layer 1 and 2, significant changes in Xplate sag
    were observed
  • Instable reduction valves?
  • Effect of glue viscosity?

End -38/2 um
Layer 2
Start 30/2 um End 50/2 um
1 deg
s
8
Y shifts
s
9
Tube Position (GL) vs Tomo
Average Residuals from pre-glue laser
checks
4 chambers, 6 layers
Tomo
s
10
Production Status
s
11
Broken Wire
s
12
s
13
Y
s
14
Z
s
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