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LHC at 7 TeV ECLOUD: HP vs Water Bag Dist.

LHC at 7 TeV ECLOUD: HP vs Water Bag Dist. Chandra Bhat and Alexey Burov October/28/2011. Comparison between different LHC Bunch Profiles (BL~0.40m), 2.5 eVs. BL. e-line Density: Drift Space. e-line Density -1 to 10 bunches :Drift Space.

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LHC at 7 TeV ECLOUD: HP vs Water Bag Dist.

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  1. LHC at 7 TeV ECLOUD:HP vs Water Bag Dist. Chandra Bhat and AlexeyBurov October/28/2011

  2. Comparison between different LHC Bunch Profiles (BL~0.40m), 2.5 eVs BL

  3. e-line Density: Drift Space

  4. e-line Density -1 to 10 bunches :Drift Space

  5. e-line Density –Last 10 bunches: : Drift Space

  6. (x,y) e-distribution after bunch # 139for HP bunch Profile

  7. (x,y) e-distribution for after bunch # 139 • Water Bag Bunch Profile

  8. Average Heat Load :Drift Space Bunch profile: HP with Z/n  Realistic Distribution LHCY1p5Emax239p5Rp54e11p50ns2p5eVsdriftx300uy300uHP Average loss over 4. batches : 2.97 (Watts/m) Bunch profile: HP Analytical LHC-Y1pt5Emax239pt5-Rp5-4e11p-50ns-blpt402m-nbu180-drift-sx300usy300u-HPanalyticalA Average loss over 4. batches : 2.72 (Watts/m) Bunch profile: Water Bag LHC-Alexey/LHC-Y1pt5Emax239pt5-Rp5-4e11p-50ns-blpt402m-nbu180-drift-sx300usy300u-WbagA Average loss over 4. batches : 2.39 (Watts/m) Bunch profile: Bunches in Double Harmonic RF with V2/V1=-0.5 LHCY1p5Emax239p5Rp54e11p50ns2p5eVsdriftx300uy300uBLMp50 Average loss over 4. batches : 2.43 (Watts/m) Comparable

  9. (x,y) e-distribution (Dipoles) Why this left right asymmetry?

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