MAC Review Meeting May 2008 DESY - PowerPoint PPT Presentation

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MAC Review Meeting May 2008 DESY

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  1. MAC Review Meeting May 2008 DESY

  2. Decouple Desy3 Vacuum System New Beamline Vacuum Chambers Replace Kicker Pulsers, Relocate Controls Connect New Cooling Water Facility Install/Test New Power Supplies and Regulation Shutdown Activities

  3. Tunnel overview Desy 2 Desy 3

  4. In and Ejection From Pia To Petra

  5. Test beam region Spectrometer Converters Photons From Internal Target

  6. In and Ejection May 08 To Petra (E-Weg)

  7. BPM in ejection line

  8. Test beam region May 08

  9. Test beam outlet to Hall 2 May 08 Shutter Collimator

  10. Replace Kicker Pulsers, Relocate Controls Connect New Cooling Water Facility Install/Test New Power Supplies and Regulation Shutdown Activities

  11. Kicker Locations Ejektionssepta DORIS Sept 26AR Sept 26BR DORIS Ejektionskicker DORIS Ki 24R e+ HBB R HBB R R5 Nebenbunch-kicker Ki 20 HBB R HBB R G1 G2 G3 G4 G5 G6 G7 G8 G9 SER R6 R4 Horizontaler Anregungs-kicker Ki 36H Dumpkicker Ki 16 R3 R7 Vertikaler Anregungs-kicker Ki 12V Ejektionskicker PETRA Ki 40E HBB E Ejektionsseptum PETRA Sept 42E HBB E R8 R2 VBB 44 E/R PIA / Linac II e- / e+ R1 VBB 46 E/R HBB E Injektionsspetum SEPT +/- Injektionskicker Ki 2+ Ki 2- e- PETRA III

  12. Typical pulser unit May 08

  13. Six units (for the 5 circuits) have been ordered plus 2 general purpose spares Dipole retains white circuit New chokes for quad resonance circuits have been ordered Manufacturing schedule has slipped, so: One unit (sextupole) is here and has been connected Tunnel has been closed to allow technical tests (albeit at low load current) Three regulation loops, current, voltage, field Biased cosine set point tables for both I and V How will the DSP management perform, questions of synchronous data acquisition etc New Power Supplies

  14. Desy-II is just a work horse, can accelerate a single bunch with up to 1.3*1010 particles Programmable hardware exists ( “Zyklusgenerator”, LTG) Top-up to Petra has been demonstrated Injection to Doris using a 6GeV magnet cycle has been demonstrated The existing linac gun allowed positron accumulation of 50 mA in 48 Petra-II bunches in < 3 minutes at 3 Hz Doris was refilled using 3*109 positrons per bunch at 6 Hz in under 1 minute Future Operation in “Top-up” Mode