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Ecloud Heat Load simulations for the LHC arcs

E-cloud Simulation Meeting. Ecloud Heat Load simulations for the LHC arcs. Humberto Maury Cuna. June 16 th , 2011. Simulation parameters for 50 ns. * We used a primary photoelectron emission yield =0.0001233. X 3. 36bunches. 36 bunches. (1). 200ns. 1.1 µs.

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Ecloud Heat Load simulations for the LHC arcs

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  1. E-cloud Simulation Meeting Ecloud Heat Load simulations for the LHC arcs Humberto Maury Cuna June 16th, 2011

  2. Simulation parameters for 50 ns * We used a primary photoelectron emission yield =0.0001233 X 3 36bunches 36 bunches (1) 200ns 1.1 µs Fill 1704 (13/4/2011 – 12:16 to 16:47) nistep = 2500

  3. Multipacting 3.5 TeV

  4. Interspace: Times the space charge field is recalculated. (10  30, 100). • Nbstep:Number of intermediate steps per bunch passage . (150  450). • Nistep: Number of intermediate steps per inter bunch drift. (2500  5000). • Npepb: Number of macroparticles/bunch. (500  2000).

  5. Simulation parameters for 50 ns – Drift * We used a primary photoelectron emission yield =0.0001233 36bunches 36 bunches (1) 200ns nistep = 2500

  6. Simulations with and without sawtooth pattern 3.5 TeV

  7. Simulation parameters sawtooth pattern simulations 72bunches 72bunches 200ns nistep = 2500

  8. Simulations with and without sawtooth pattern 7 TeV

  9. Thank you for your attention

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