Production & QA of BOL chambers

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Presentation transcript:

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

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

Graziano Massaro(NIKHEF) RMS along chamber Simple interpolation Include wire tension RMS Graziano Massaro(NIKHEF) s

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 Graziano Massaro(NIKHEF) s

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) Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF) Z shifts Graziano Massaro(NIKHEF) s

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 Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF) Y shifts Graziano Massaro(NIKHEF) s

Tube Position (GL) vs Tomo Average Residuals from pre-glue laser checks 4 chambers, 6 layers Tomo Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF) Production Status Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF) Broken Wire Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF)

Graziano Massaro(NIKHEF) Y Graziano Massaro(NIKHEF) s

Graziano Massaro(NIKHEF)