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Linac BPM Electronics Upgrade

Linac BPM Electronics Upgrade. PIP Status report Elliott McCrory March 6, 2013. Outline. The good parts All modules are installed All positions have been verified as reasonable ACNET Devices read correctly OAC is running and doing many of the specified actions

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Linac BPM Electronics Upgrade

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  1. Linac BPM Electronics Upgrade PIP Status report Elliott McCrory March 6, 2013

  2. Outline • The good parts • All modules are installed • All positions have been verified as reasonable • ACNET Devices read correctly • OAC is running and doing many of the specified actions • New Java applications are loaded • The not-so-good part • Continue to have commissioning problems with modules • OAC response is not great • Java applications need work • Measurements • Software Status BPM Status

  3. Personnel Review • Instrumentation • EM • Nathan Eddy • Technicians as needed • Linac • Matt Gardner • Technicians as needed • PPD • Sten Hansen • Terry Kiper BPM Status

  4. The Good Parts

  5. Installations • 15 “Masters” in 15 crates are online. • Some BPM Pickups are faulty • BPV5OT: Is beam hitting the pickup? BPM Status

  6. Modules on hand • These 71 modules exist • S/N 3, 4, 6, 7, 9-20, 22-37, 39-61, 64, 65, 67-74, 87, 90, 91, 93 • Photos – Tank 5 (Typical of LEL) BPM Status

  7. Diagnostics Room

  8. Linac 400 MeV BPM Status

  9. Booster 400 MeV BPM Status

  10. Booster Rack 2 BPM Status

  11. Booster Rack 3 BPM Status

  12. Measurements BPM Status

  13. Simple Phase Correlation L:D74BF L:D52BF BPM Status

  14. SVD for Phases 0: D42BF 1, 2: D7TOR SV 3 BPM Status

  15. Simple Position Correlation L:D23BPH L:D22BPH BPM Status

  16. Simple Position Correlation B:HPQ2 B:HPLAM BPM Status

  17. SVD: First singular value D34BPV D54BPV D12BPV D72BPV D31BPV D43BPV VPQ2 D23BPV D22BPV D62BPV D64BPV BPM Status

  18. Second singular value HPQ2 D61BPH D41BPH D21BPH D23BPH D74BPH D13BPH D31BPH D71BPH D51BPH BPM Status

  19. 7th & 9th singular value: Noisy? D13BPV D44BPH BPM Status

  20. Controls Software BPM Status

  21. Java Applications: Screen Shots BPM Status

  22. Linac BPM Expert BPM Status

  23. Access to internal registers BPM Status

  24. Calibration with CalTone BPM Status

  25. Synchronous DAQ Waveforms BPM Status

  26. Sync. DAQ Waveforms BPM Status

  27. Multiplexed Waveforms BPM Status

  28. Register Summaries BPM Status

  29. Ongoing work

  30. List of commissioning problems • Several one-offs that have been fixed • E.g., forgetting to “save” registers properly so that they come up in the correct configuration. • Simple problems with modules (e.g., loose connection, S/W bugs) • Easily repaired by Hansen/Kiper • NIM Power supply failure • 805 MHz input signal problem • Each module requires 805 MHz at ~ -10 dBm • When it goes away, FPGA enters undefined state • Kiper & Hansen understand the problem; developing a work-around • This seems to manifest itself only in the 400 MeV BPMs • Source: Debuncher room BPM Status

  31. Controls Software TO DO • Booster 400 MeV line steering • Bill Marsh & Mike Sliczniak are on it • Problems in OAC/Module communications • Leads to slow response • taking fraction minute to see result • Gives impression that Java apps are unreliable • More bells & whistles? BPM Status

  32. Other TO DO • Calibration • Better data analysis BPM Status

  33. Summary • Installation is complete • Still seeing startup problems • Java/expert apps need work BPM Status

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