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Breakout Session: Controls

Breakout Session: Controls. Controls Commissioning Experience. LCLS commissioned a new injector with beam AND commissioned a new Control System. First Beam. Overview. This presentation summarizes which control system components are currently working for the injector commissioning phase

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Breakout Session: Controls

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  1. Breakout Session: Controls Controls Commissioning Experience

  2. LCLS commissioned a new injector with beam AND commissioned a new Control System First Beam

  3. Overview • This presentation summarizes which control system components are currently working for the injector commissioning phase • Screen shots from EPICS show functionality of each system • Data from the Elog is shown to illustrate acquisition • Comments on what works and what doesn’t are included • Summary includes lessons learned and what still needs to be done

  4. Everything is accessible from this screen

  5. Beam line graphic used for most GUIse.g. injector vacuum summary

  6. PPS Summary status displays

  7. BCS Summary status display: - Calibration of detectors not completed yet - SubBooster Interface timing “difficult”

  8. screen New optical fiber Loss monitor MPS- working with SLC processor and timing- ion chambers do trip beam- several MPS inputs (limit switches on obstructions) not available yet

  9. Conventional facilities- interfaced to EPICS controls- gun LCW temp feedback working ok at 30 Hz- need to add alarm interface for temperatures, flows etc.

  10. Timing System- see separate presentation by S. Allison- LCLS Event system and SLC Timing working in consort

  11. Laser Systems- Image Acquisition and Steering Feedback

  12. Magnet Controls

  13. Low Level RF Control

  14. Gun RF Feedback in Operation - closing the loop between PAD and PAC

  15. RF Phase Scans Data acquired with Matlab Data acquired with SCP Correlation Plot (diagnose a satellite peak from laser)

  16. Profile monitors- control and diagnostics through EDM screens

  17. Image acquisition with MatlabGun spectrometer YAG Profile Monitor Screen • Using physicist’s scripts up till now • ImageManager package coming online now

  18. Beam Position Monitors- see separate presentation from S. Smith

  19. Asynchronous Beam Acquisition via SCPe.g. Gun charge vs. laser power But some people still plotting data offline Measured on the SCP Correlation Plot

  20. Beam Synchronous Acquisition is working through Matlab – example of orbit display- BSAP via the SCP coming next

  21. Motion control-BC1 chicane movers in use- next to be commissioned: wire scanners, collimators

  22. Generic Tools that are working • SCP • Configuration save and restore • EPICS Channel Watcher • Correlation plots • Strip chart tools • Archive Viewer • Alarm handler • Electronic logbook • Matlab for higher level applications

  23. Strip Tool monitoring gun temperatures during RF trips

  24. Electronic logbook gives instant overview

  25. Reorganizing the control room layout Purchasing more workstations Injector commissioning involved 12 or more in the room, so its likely to increase as the linac and undulator systems are commissioned Control Room Conditions Still a Bit Cramped (first beam to end of BC1!)

  26. Summary and lessons learned • Remarkable commissioning achievement for the control system • Controls commissioning time was squeezed • How do we ask for more? • Planned BC2–linac installation is tight • Improve liaison with mechanical engineering • We are still learning how to handle large number of IOCs and the huge number of PVs • e.g. Restoring after a reboot • Large number of EDM displays can confuse operators at times (looking for a screen that may be already open) • Controls group is a great TEAM!

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