1 / 8

VELO RF box status at Nikhef

VELO RF box status at Nikhef. Report at the Meeting for new VELO RF foil development Tjeerd Ketel, Erno Roeland a.o ., Nikhef . Activities in 2010. After a failure in February 2010 to produce a complete leak-tight RF box, we decided to produce a flat box to save on prepared foils.

ayame
Download Presentation

VELO RF box status at Nikhef

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. VELO RF box status at Nikhef Report at the Meeting for new VELO RF foil development Tjeerd Ketel, ErnoRoelanda.o., Nikhef Tjeerd Ketel, Nikhef

  2. Activities in 2010 • After a failure in February 2010 to produce a complete leak-tight RF box, we decided to produce a flat box to save on prepared foils. • Longer foil extension (4 mm) for welding. • Improvements welding machine. • More flanges (4) milled at the VU. • Inventory of the side foils. • More manpower promised in May. • New welding machine. Optimization to avoid tiny cracks (leaks) at long welds. • Flat box is tested in October. It leaks at all corners! • Corner tests started. • First additional foil pressed at Nikhef. Tjeerd Ketel, Nikhef

  3. Activities in 2011 • Prepare side foils for 10 boxes (40 in total). • Ready minus 2 side foils. • Prepare 7 left and 7 right RF foils. • Still 3+3 to be pressed. • Produce 6 test cubes (48 corners). • Improvements in first welds. • Improvements in repair, including AlSi addition. • Produce complete RF boxes. • First in preparation. Tjeerd Ketel, Nikhef

  4. The test cubes 5 6 1 2 3 4 Tjeerd Ketel, Nikhef

  5. Cubes 1-6 • Cube 1: • Test of flat foils, without good cooling contact. • Cube 2: • 12A. All corners bad. Both solder and weld added. Repair failed • Cube 3: • 17A. All corners bad. Little cracks. Repairs failed. • Cube 4: • 19A. Three corners bad. Weld added. One repaired. • Continue with 19 A for the rest. • Cube 5. • One corner bad. Welded again. Still small leak. • Cube 6. • Four corners bad. AlSi added. Three repaired. One small leak. Tjeerd Ketel, Nikhef

  6. Cubes 5-6 Tjeerd Ketel, Nikhef

  7. RF box Tjeerd Ketel, Nikhef

  8. Conclusion and outlook • Cube tests improved the welding quality and showed repair with welding AlSi wire. • Start now with a real box. • Improve on repair simultaneously. • Production rate of one box per month, foreseen but not yet realized. Tjeerd Ketel, Nikhef

More Related