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K. Genser FNAL/CD

Performance of Tevatron Flying Wire Detectors and Emittance Measurements for Stores 3050-3532 05/28/04. K. Genser FNAL/CD. Performance of FW Detectors. Stores 3050-3532 were analyzed excluding stores 3148-3325 when there was no E11 horizontal wire;

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K. Genser FNAL/CD

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  1. Performance of Tevatron Flying Wire Detectorsand Emittance Measurementsfor Stores 3050-353205/28/04 K. Genser FNAL/CD

  2. Performance of FW Detectors • Stores 3050-3532 were analyzed excluding stores 3148-3325 when there was no E11 horizontal wire; • The E11 proton detector has been showing signs of amplitude increase since March shutdown; other detectors have been stable; • Despite the amplitude increase the detector does not show signs of saturation. • The following plots are made using nominal lattice parameters and MDC dp/p formula as outlined in the note 888 & 656 K. Genser - TeV Flying Wires and Emittance Measurements

  3. The ratio of Bunch Amplitude times Sigma divided by SBDintensity versus Store for horizontal pbar detector is quite constant over time Performance of FW E11 horizontal pbar detector Bunch Amplitude*Sigma divided by SBDintensity versus Store for horizontal pbar detector at 150 GeV. K. Genser - TeV Flying Wires and Emittance Measurements

  4. Ratio of pass 1 over pass 2 of Bunch Amplitude times Sigma versus SBDintensity for horizontal pbar detector is quite constant and does not indicate that the detector is saturating Performance of FW E11 horizontal pbar detector Ratio of pass 1 over pass 2 of Bunch Amplitude*Sigma versus SBDintensity for horizontal pbar detector at 150 GeV. K. Genser - TeV Flying Wires and Emittance Measurements

  5. The ratio of Bunch Amplitude times Sigma divided by SBDintensity versus Store for horizontal proton detector has been changing over time Performance of FW E11 horizontal proton detector Bunch Amplitude*Sigma divided by SBDintensity versus Store for horizontal proton detector at 150 GeV. K. Genser - TeV Flying Wires and Emittance Measurements

  6. Ratio of pass 1 over pass 2 of Bunch Amplitude times Sigma versus SBDintensity for horizontal proton detector is quite constant and does not indicate that the detector is saturating Performance of FW E11 horizontal proton detector Ratio of pass 1 over pass 2 of Bunch Amplitude*Sigma versus SBDintensity for horizontal proton detector at 150 GeV. K. Genser - TeV Flying Wires and Emittance Measurements

  7. Store 3424 lattice change is seen by horizontal Flying Wires Injection Lattice Changes (pbars) K. Genser - TeV Flying Wires and Emittance Measurements

  8. Store 3424 lattice change is seen by horizontal Flying Wires; Proton detectors indicate another smaller change before store 3528 (due to RF change?) Injection Lattice Changes (protons) K. Genser - TeV Flying Wires and Emittance Measurements

  9. Injection Lattice Changes (pbars) The ratio of E17/E11 Emittances not equal one indicates a discrepancy in the lattice functions K. Genser - TeV Flying Wires and Emittance Measurements

  10. Injection Lattice Changes (protons) The ratio of E17/E11 Emittances not equal one indicates a discrepancy in the lattice functions K. Genser - TeV Flying Wires and Emittance Measurements

  11. A change is visible before store 3487 with changes afterwards? A change before store 3528? Collision Lattice Changes (pbars) K. Genser - TeV Flying Wires and Emittance Measurements

  12. Store 3487 lattice change is seen by horizontal Flying Wires; Proton detectors indicate another change before store 3528 (most likely due to RF change not accounted for in the current dp/p formula) Collision Lattice Changes (protons) K. Genser - TeV Flying Wires and Emittance Measurements

  13. Collision Lattice Changes (pbars) The ratio of E17/E11 Emittances not equal one indicates a discrepancy in the lattice functions K. Genser - TeV Flying Wires and Emittance Measurements

  14. Collision Lattice Changes (protons) The ratio of E17/E11 Emittances not equal one indicates a discrepancy in the lattice functions K. Genser - TeV Flying Wires and Emittance Measurements

  15. Collision Lattice/Emittance Changes K. Genser - TeV Flying Wires and Emittance Measurements

  16. Flying Wires see lattice changes • Both Injection and Collision lattice changes are visible using Flying Wires measurements • The changes seem to be different for protons than for pbars K. Genser - TeV Flying Wires and Emittance Measurements

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