1. Production & QA of BOL chambers
Tomo results BOL0,2,3
Comparison Tomo and QA data
Production status
Graziano Massaro(NIKHEF)

2. Graziano Massaro(NIKHEF)
Xray Tomograph
Site grid parameters from BOL0
Analysis of Martin Woudstra
Results so-far (so-good!):
Graziano Massaro(NIKHEF) s

3. Graziano Massaro(NIKHEF)
RMS along chamber
Simple interpolation
Include wire tension RMS
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4. Graziano Massaro(NIKHEF)
Closer Look
BOL 0
Spacer
inner
outer
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 ~1%o x0.7mm
also affects Y distance between ML: ~50 mm
Y pitch between outer tube layer close to design
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5. Graziano Massaro(NIKHEF)
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)
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6. Graziano Massaro(NIKHEF)
Z shifts
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7. Graziano Massaro(NIKHEF)
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
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8. Graziano Massaro(NIKHEF)
Y shifts
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9. Tube Position (GL) vs Tomo
Average Residuals from pre-glue laser checks
4 chambers, 6 layers
Tomo
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10. Graziano Massaro(NIKHEF)
Production Status
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11. Graziano Massaro(NIKHEF)
Broken Wire
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12. Graziano Massaro(NIKHEF)

13. Graziano Massaro(NIKHEF)Y
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14. Graziano Massaro(NIKHEF)