1 / 27

ANL CRAB CAVITY FABRICATION @ JEFFERSON LAB

ANL CRAB CAVITY FABRICATION @ JEFFERSON LAB. LHC-CC08 WORKSHOP @ BROOKHAVEN FEBRUARY 25, 2008 LARRY TURLINGTON. ANL CRAB CAVITY. ANL CRAB CAVITY FABRICATION.

kyran
Download Presentation

ANL CRAB CAVITY FABRICATION @ JEFFERSON LAB

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. ANL CRAB CAVITY FABRICATION @ JEFFERSON LAB LHC-CC08 WORKSHOP @ BROOKHAVEN FEBRUARY 25, 2008 LARRY TURLINGTON

  2. ANL CRAB CAVITY

  3. ANL CRAB CAVITY FABRICATION • When I saw the drawing for the Crab Cavity I wanted to have a part in the fabrication. After building numerous elliptical, round Cavities I saw a challenge in fabricating this Cavity. • I’m a member of the Special Project group within the SRF Division. • Personnel used in the fabrication of the Crab Cavity: Myself, Senior Engineering Associate Bob Rimmer, Director of SRF Institute Peter Kneisel, Senior SRF Physicist

  4. ANL CRAB CAVITY FABRICATION Haipeng Wang, Accelerator Engineer-RF Structures Gary Slack, Machinist Steve Manning, Electron Beam Welder Bill Clemens, Electron Beam Welder Jim Henry, Senior Designer • You can see we had a lean efficient project. • Jefferson Lab has all the facilities and personnel for rapid prototyping and testing.

  5. ANL CRAB CAVITY FABRICATIONTIMELINE • Received initial design late June 2007 • Cost estimate early July 2007 • Die and fixture drawings finished late August 2007 • Project approved early September 2007 • Dimensions and models finalized early October 2007 • Drawings revised early October 2007 • Die and fixture contract awarded mid October 2007 • Nylon male and female Die CNC test pieces received late October 2007

  6. ANL CRAB CAVITY FABRICATIONTIMELINE • Fabrication dies and fixtures received early November 2007 • Parts deep drawn and machined late November 2007 • EBW complete early December 2007 • Cavity complete December 12, 2007 • First Cryostat test Mid December, 2007 • Total time for fabrication was a little over three months which included three weeks of modeling time • Jefferson Lab’s management provided the necessary support to complete this project in a timely manner

  7. ANL CRAB CAVITY MODELSReceived from ANL

  8. ANL CRAB CAVITY DRAWINGSReceived from ANL

  9. ANL CRAB CAVITY 3-D MODELProvided to Machine Shop

  10. ANL CRAB CAVITY 2-D LAYOUTS

  11. ANL CAVITY FORMING DIE

  12. ANL CRAB CAVITY FORMING DIE

  13. ANL CAVITY MACHINING FIXTURE

  14. ANL CRAB CAVITY MACHINING FIXTURE

  15. ANL CRAB CAVITY HALF CELLS AND CELL BLANK

  16. ANL CRAB CAVITY ALUMINUM DUMB BELLFor RF Measurements

  17. ANL CRAB CAVITY HALF CELL + BEAM TUBE AND FLANGE

  18. ANL CRAB CAVITY HALF CELL + BEAM TUBE AND FLANGE

  19. ANL CRAB CAVITY EBW

  20. ANL CRAB CAVITY EBW

  21. ANL CRAB CAVITY EBW

  22. ANL CRAB CAVITY AFTER EBW

  23. ANL CRAB CAVITY AFTER EBW

  24. ANL CRAB CAVITY EBW SAMPLE SMOOTH UNDER BEAD PRODUCED @ 50KV, 42 MILIAMPS @ 18”/Minute

  25. ANL CRAB CAVITY SETUP FOR BEAD PULL

  26. ANL CRAB CAVITY FUTURE PLANS & SUMMARY • Multi Cell Copper Cavity with End Groups when End Group models are complete. • End Groups are planned to be machined from copper plate to reduce fabrication cost associated in developing Dies and Fixtures. • Adding stiffeners. • This Cavity presented few problems in fabrication and went as planned. We thought the biggest problem would be the 3-D EBW which proved to be no problem at all.

  27. THANK YOU

More Related