Experience with 1 x 1m2 and 2 x 1 m2 MM
assemblyCERN/PH/DT
Hans Danielsson , Francisco Perez Gomez, Philippe Lenoir, Pierre-Ange Giudici, Francois Garnier, Jerome Bendotti
29-30/11/12Small wheel MM, Frascati
Small wheel MM, Frascati
ContentDesign
Material
Assembly
Conclusion
29-30/11/12
Small wheel MM, Frascati
Principle layout
29-30/11/12
Jörk Wotschack
Small wheel MM, Frascati
1 x 1 m2 sketch (closed)
Stiffening panel
Rohacell
29-30/11/12
5.00
PCB1 PCB2
Jörk Wotschack
Small wheel MM, Frascati
Experience with the 1x1m2
Photos
29-30/11/12
2 MM of 1m x 0.5mglued to the Rohacell panel
Stiffening panel
Small wheel MM, Frascati
Design 2x1m2
4 Micromegas PCBs
~2 m
~1m
29-30/11/12
Small wheel MM, Frascati
Material 2x1m2
Aluminum honeycombAlloy 3003 - cell size 9mm - density 2.6 - dim.
1250x2500 mm T10 mmAlloy 3003 - cell size 9mm - density 2.6 - dim.
1250x2500 mm T15 mm
Aluminum in closeouts, gas distribution and spacer between drift and MM
Glass-fiber reinforced plastics (GFRP)for the skins
Araldite: gluing at room temperature
29-30/11/12
Small wheel MM, Frascati
Assembly of a test panel ~0.2m x 2m
Uniform thickness skins (10-20mm)
Calibrated spacers
29-30/11/12
Small wheel MM, Frascati 29-30/11/12
Small wheel MM, Frascati
Validation • Laser device mounted on an
optical bench• It measures the distance
relative to a known reference
29-30/11/12
Small wheel MM, Frascati
Results (example)
X
Distance (mm)
29-30/11/12
Conclusion A first attempt has been made to assembly flat panels using a
flat table (flatness 15 mm)
The first results are promising and the next step is to make the first full size 2m x 1m panels (10 mm and 15 mm).The first panel this week and the second beginning of next week. The mounting of the mesh is planned for end of next week.
Next steps: Complete the assembly of a single plane
Evaluate the assembly procedures and tooling
Study how to make a complete “multiplet”
Look at alternative procedures and towards series production
29-30/11/12Small wheel MM, Frascati
Small wheel MM, Frascati
Spares (discussion)
29-30/11/12