1 / 29

RF BPM Status and Production Test Results

RF BPM Status and Production Test Results. Cavity BPM Development. R&D 1st generation phase I cold test BPM R&D 2nd generation phase II APS Injector Test Stand First Article production design 3 BPM test. Cold Test 1st Generation. ITS Test 2nd Generation. 3-BPM Test First Article.

dusan
Download Presentation

RF BPM Status and Production Test Results

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. RF BPM Status and Production Test Results

  2. Cavity BPM Development • R&D 1st generation phase I cold test BPM • R&D 2nd generation phase II APS Injector Test Stand • First Article production design 3 BPM test Cold Test 1st Generation ITS Test 2nd Generation 3-BPM Test First Article

  3. Comprehensive BPM Test Program • Non-Vacuum Single BPM cold test unit complete 04/06 • (Phase I) test in APS Injector Test Stand complete 09/06 • (Phase II) 3-BPM test in APS LEUTL completed 07/07 • Completed test matrix to prove compliance to specification • Production phase ongoing

  4. 4 mm Wide Scan Data without removing beam motion 0.2 nC

  5. Single-Shot Resolution Test Procedure • Use calibration to get a list of horizontal and vertical positions for each BPM • Can do Model Independent Analysis (MIA) or Least Squares Analysis (LSA) • Predict position at middle bpm (BPM 2) using horizontal and vertical positions at BPMs 1 and 3. • Histogram the residuals for BPM 2 and standard deviation is the resolution

  6. 3-BPM Test Apparent Y resolution sY = 270 nm Courtesy Steve Smith

  7. 3-BPM Test Apparent X resolution sx = 360 nm Courtesy Steve Smith

  8. 1 Hour Stability Measurement Courtesy Nick Sereno

  9. LTU and Undulator BPM System Conformance Table

  10. M1-Tool Works BPM Production • M1-Tool Works awarded contract for machining bodies and transitions for all 40 sets of parts • Production BPMs mechanically measured very good

  11. BPM process flow chart

  12. Cold Test Set-Up for Pre-Braze test • All BPMs are tuned and cold tested before brazing • Tuning accomplished by micro-machining end-caps • Good correlation between cold test data before and after braze

  13. Preparation Before First Braze • Average of 4 BPMs per week are pre-tuned and cold tested • 30 BPMs cold tested and in process at this time • End Cap braze procedure works very nice for consistent electrical results • Pre-tune minimizes the need for further tuning after braze

  14. Cold Test Stations • 2 network analyzers are set-up to support LCLS BPM production • Clean room procedures used when handling clean parts and assembles • All parts are carefully fitted and tuned before sending them to be brazed

  15. Cavity Production • Test method and procedures optimized for production • First few units required minimum tuning • Tuning design working well when needed • Good correlation from pre-tune data

  16. Tunable Cavity End Caps • End-cap design mechanically strengthen • Can retune once flange is installed • Tuner is protected against accidental mistuning

  17. Cavity Tuners

  18. Pre-Tuned Dipole Cavity

  19. Cavity BPM Production Statistics

  20. Cavity BPM Production Statistics

  21. Cavity BPM Production Statistics

  22. Cavity BPM Production Milestones • 1st BPM shipped 05/12/08 • 12 BPMs shipped date 06/06/08 • Expect 13 BPMs to ship 07/01/08 • Expect 13 BPMs to ship 08/01/08 • Spares 08/08

  23. Receiver Electronics • 1st generation Miteq standard product • 2nd generation bread board to support phase II APS Injector Test Stand • First Article production design supported 3 BPM test

  24. Receiver Component Status • Most components received at this time • Sub assemblies being built • Test fixtures built

  25. Miteq Production Receiver Delivered • First Unit Received 4/11/08 • Critical parameters checked meet specification • Received returned to Miteq to repair damage due to ANL test fixture over voltage condition

  26. Receiver Production Milestones • 1st receiver ship date 06/12/08 • 8 receivers expected ship date 07/01/08 • 15 receivers expected ship date 07/31/08 • 16 receivers expected ship date 08/31/08

  27. Waveguide Kit • Waveguide has been received and QA checked • Expected Ship date 6/20/08

  28. BPM System Layout and Integration Beam X-band receiver LRU

  29. Risk Mitigation for Integration and Commissioning • Extensive System Testing • Installation of production hardware on long term test undulator • Qualified system with the same ADC (PAD) as SLAC LINAC BPM upgrade to minimize risk of integration • Successful collaborative effort testing and qualifying BPM system

More Related