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Beam Line BPM Upgrade

Beam Line BPM Upgrade. Nathan Eddy & Elvin Harms 21 April 2005. Beam Line BPM Upgrade. Introduction/Motivation History Technical Overview Status Software Implementation Steps Acknowledgements Summary. Beam Line BPM Upgrade - Introduction.

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Beam Line BPM Upgrade

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  1. Beam Line BPM Upgrade Nathan Eddy & Elvin Harms 21 April 2005

  2. Beam Line BPM Upgrade • Introduction/Motivation • History • Technical Overview • Status • Software • Implementation Steps • Acknowledgements • Summary BPM Upgrade

  3. Beam Line BPM Upgrade - Introduction • Part of the ‘Rapid Transfers’ Run II Upgrade Project • Beam Line Regulation • Software • Oscillation Feedback & Control • Diagnostics • Commissioning • Ultimate goal • Accumulator to Recycler transfers every ~30 minutes and completed in 1 or 2 minutes BPM Upgrade

  4. Beam Line BPM Upgrade - Motivation • 1.3.6.5.1 Beam line BPM upgrade • BPM current use • Reverse protons • Minimum 30 uniform 53 MHz bunches • A few E11 intensity • Beam conditions purposely varied during shot set up to minimize necessary intensity • currently no pbar beam line BPM data • Reverse proton data sufficient for good pbar transmission • Electronics limitations • Low intensity • bunch structure • Outdated DAQ • Difficult to integrate with existing software • Rapid Transfers - no routine reverse proton tuneup for rapid transfers • Use pbars to monitor beam line performance • Use data to feedback to beam lines tune BPM Upgrade

  5. P1 Line 8.9 GeV/c 120 GeV/c P2 Line 8.9 GeV/c 120 GeV/c AP1 Line 8.9 GeV/c 120 GeV/c AP3 Line 8.9 GeV/c Beam Line BPM Upgrade - Motivation • Scope of work • P1, P2, AP1, AP3, A1 • Use existing BPM pickups (53 MHz) • Upgrade electronics to support all expected beam modes • Modernize DAQ • Develop applications software to meet beam monitoring and tuning needs BPM Upgrade

  6. Beam Line BPM Upgrade - History • Identified as part of Run II Upgrades/Rapid Transfers • Preliminary meeting, Requirements – 8/11/03 • No resources allocated/available • Inventory of existing systems – March 2004 • Manpower identified – May 2004 • Requirements document v 1.0 released – May 2004 • Requirements Review – June 2004 • Re-reviewed/notice to proceed with design - July 2004 • Rack at F23 – September 2004 • Installation Schedule developed – October 2004 • Project review – October 2004 • Crate running at F23 – February 2005 • First Pbar beam signals – March 2005 • Expected close out – summer 2005 BPM Upgrade

  7. Beam Line BPM Upgrade – Requirements P1 line Beams Document 1279-v3.3 BPM Upgrade

  8. Beam Line BPM Upgrade – Requirements P2 line Beams Document 1279-v3.3 BPM Upgrade

  9. Beam Line BPM Upgrade – Requirements AP1 line Beams Document 1279-v3.3 BPM Upgrade

  10. Beam Line BPM Upgrade – Requirements AP3 line Beams Document 1279-v3.3 BPM Upgrade

  11. Beam Line BPM Upgrade – Requirements A1 line Beams Document 1279-v3.3 BPM Upgrade

  12. Beam Line BPM Upgrade – Requirements Beams Document 1279-v3.3 BPM Upgrade

  13. Beamline BPM Upgrade – Technical Overview • Use BPM pickups already in place (4 styles) • MI8, Main Ring, Accumulator, Debuncher • Use cables currently installed (RG8/RG213) • Examined whether pre-amps needed • Use Echotek digital receiver to digitize and process analog signals • Use D/S for position, |S| for intensity • Used in Recycler, NUMI, & Tevatron • System design draws heavily upon Recycler, NUMI, and Tevatron systems • System Design based upon NUMI model • Front-end software from Recycler/NUMI • Same VME crate, Echotek & Clock boards used in Tevatron BPM Upgrade

  14. Beamline BPM Upgrade – System Overview Clock Trigger VME Ethernet PPC Controller Calculate Position & Intensity Echotek Digitize & Downconvert ACNET VME Crate A,B Front Panel Cables Analog Filter Gain/Att Rack In Service Building A Pickup In Tunnel Cables (RG8/RG213) to Service Building Analog Filter Gain/Att B BPM Upgrade

  15. Beamline BPM Upgrade – Electronics Overview VME Backplane PPC Controller – handles front end software, readout, and communication Digital PS CD Clock Board – provides each Echotek board with clock input (74MHz) Echotek Echotek Echotek Ethernet Echotek – digitizes & downconverts the 8 analog inputs (4 bpms) IP Modules Trigger Fanout PPC Controller CD Clock Board Trigger Fanout – generates trigger input for each Echotek from BeamSync IP Modules – modules to decode TCLK, generate triggers, calibration I/O Analog Filter – filters, attenuates, & amplifies analog signal as needed Linear PS Test/Ctrl Module – handles setup of filter modules including test pulses Analog Filter Analog Filter Analog Filter Test/Ctrl Module Separate crate for Analog Modules – linear PS & existing control software BPM Cables from Tunnel BPM Upgrade

  16. Beamline BPM Upgrade – Analog Filter Module • 53MHz Bunched Beam • 1-4 large intensity bunches (TeV) • 7-84 consecutive bunches (rev P, Stacking) • 2.5MHz Bunched Beam • 4 bunches Accumulator to Main Injector • Test Feature (Electronics) • Inject 2.5MHz or 53MHz test signal • A=B, A<B, A>B • Proto Type 2 layer board • Done by EE support • Checkout since mid Feb • Production Boards • Expect 5 next week • Full Quantity (46) available in June BPM Upgrade

  17. Beamline BPM Upgrade – Test Application BPM Upgrade

  18. Beamline BPM Upgrade – Initial Testing • Teststand on 2nd floor Transfer Gallery for initial testing • Full VME system – ppc, echotek, trigger modules, clock prototype and AWG for signal input • Using Prototype Analog Module • Using R25 diagnostic application • Used to evaluate system performance and digital filter testing BPM Upgrade

  19. Beamline BPM Upgrade – Initial Installation • New rack installed at F23 • Split pickup signals to both old and new system • Use for beam commissioning in parallel with old system • Initial installation rack – full infrastructure currently installed (minus required number of filter modules) • Used to evaluate Filter Module prototype Data Logger Fast Time Plot BPM Upgrade

  20. Beamline BPM Upgrade – Application Software • BPM Plots/List (I39, P54, T39) • Configuration & control of beamline bpms, make measurements and archive data • APx Lattice (P143) • Perform orbit measurements and compare with archived data, apply orbit corrections • Reverse Proton Tuneup (P150) • Similar to P143 for reverse protons • Pbar Differential Orbit Measurement (P163) • Gathers orbit data while adjusting trims & measuring lattice parameters • Shot Data Acquistion (SDA) • Expect existing applications to continue to see protons with minimal changes • More extensive modifications or new applications will be needed to monitor anti-protons BPM Upgrade

  21. Beamline BPM Upgrade – Installation Plan • Complete System Installation at F23 (AP1) • Infrastructure in place • Rack, crates, power supplys, cables, etc • VME electronics complete and operational • Front-end software complete and being used for testing • Expect to have 2-3 Filter Modules installed in mid May • Complete installation in early June (10 Filter Modules) • Remaining Locations • AP3 – AP30, F27, P1 – MI60S, P2 – F2, A1 – MI60N • Setup and perform initial checkout on 2nd floor • Remove old system and install new 1 rack at a time • User software must handle mix of old & new for protons • Plan to begin mid June, complete in July BPM Upgrade

  22. Beam Line BPM Upgrade - Acknowledgements • Hardware • John Van Bogaert, Bob Dysert, Claudio Rivetta (SLAC), Craig McClure, Glen Johnson, Bakul Banerjee, Bob Forster, Bill Haynes, Vince Pavlicek • Software • Duane Voy, Charlie Briegel, Bob West, Brian Hendricks, Lin Winterowd • Review process • Steve Werkema, Ioanis Kourbanis, Valeri Lebedev • Oversight, Consulting, etc. • Nathan Eddy, Bob Webber, Peter Prieto, Amber Larson, Elvin Harms BPM Upgrade

  23. Beam Line BPM Upgrade - Summary • An upgrade to the P1, P2, AP3, AP3, A1 BPM systems has been identified as necessary and is included as part of Run II Upgrades/Frequent Transfers project • Upgrade design draws on recent BPM upgrade experience (Tevatron, Recycler, NuMI) • Unique design for both 2.5 and 53 MHz operation • Design is largely complete; testing with beam is in progress at F23 • Anticipated completion this summer • MI upgrade will build on this experience BPM Upgrade

  24. Arm & Trigger Events BPM Upgrade

  25. 53MHz Beam Signal Parameters • Max Echotek input 1.1Vpp • Measurement range requirements +/-15mm • Yields 900mVpp maximum at 0mm (A=B) • Choose to use 700mVpp to give some headroom BPM Upgrade

  26. Filter Module Testing • 1st Prototype from EE Support in February • Miscommunication on how to evaluate two solid state switch candidates • Minimized usefulness of board (2 weeks) • 2nd Prototype from EE Support • Discovered issue with output op amp unable to supply enough current over entire signal range (1 week) • Began “Real Beam” testing at F23 (3 weeks) • Found that gain/attenuation settings needed adjustment • Found large position variations – SW120 & temperature • Decided to make Prototype run of full board (2 weeks) • Total 2 months over estimated time to produce production boards BPM Upgrade

  27. Beamline BPM Logistics • MI 60 South, P1 BPMs • 15 BPMs -> 4 Echoteks, 8 Analog Modules • MI 60 North, A1 BPMs • 16 BPMs -> 4 Echoteks, 8 Analog Modules • F1 Service, P2 BPMs • 9 BPMs -> 3 Echoteks, 5 Analog Modules • F23 Service, AP1 & AP3 BPMs (now 2 racks) • 19 BPMs -> 5 Echoteks, 10 Analog Modules • F27 Service, AP3 BPMs • 10 BPMs -> 3 Echoteks, 5 Analog Modules • AP30 Service, AP3 BPMs (now 2 racks) • 19 BPMs -> 5 Echoteks, 10 Analog Modules • Totals for 6 racks • 88 BPMs • 24 Echoteks (8 ch) & 46 Analog Modules (4 ch) • Max of 5 echoteks & 10 Analog Modules per rack BPM Upgrade

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