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Published byTyler Chase Modified over 9 years ago
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Stanford Linear Accelerator Center Ron Chestnut EPICS Collaboration Mtg June 18-20, 20031 SLAC Tune Tracker/Feedback Mike Laznovsky
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20032 Requirements Track tune per plane and per ring Move “multiknob” to maintain tune Switch ranges while tracking Constant tune or current dependent tune modes
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20033 Tune Space
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20034 Hardware GPIB–driven SR830 lock-in amplifier Tweaks the beam, watches response Works best on non-colliding bunches Phase response is almost linear in region of interest Four devices – (LER,HER) * (X,Y)
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20035 S/W Implementation All IOC support is “soft” or GPIB Fairly flat database Three sequence programs per device — Amplitude Control — Tracking code — Feedback code One sequence program for VMS synchronization
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20036 General H/W control
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20037 Tune Scan Panel
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20038 PEP-II Tune Scan
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 20039 Tracker panel
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 200310 Feedback Panel
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 200311 Some Results
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 200312 SLAC status – an aside LCLS — demonstrate injector by 10/2006 — modify SLC timing to accommodate LCLS — SPPS now working (ANL Undulator) VXI PPC (Kinetics) has worked in production — Supports 4 new PEP Low Level RF boards Stephanie from ESD to SPEAR Unix infrastructure work – Versioning, Deployment, Escalation
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Ron ChestnutEPICS Collaboration Mtg June 18-20, 200313 More SLAC status 8-Pack (NLC Test Accelerator) software in commissioning Oracle Archiver — Scalar PV access is about 2x slower than file- based access — Waveform access is very slow — Changing waveform storage to VARRAY — Matlab Channel Archiver access (Uses libIO, works with traditional files too)
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