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Pb-Pb Scenario for post-LS2 D.Manglunki

Pb-Pb Scenario for post-LS2 D.Manglunki. Nb of bunches. Harmonic number / Frequency. 6 injections. 2. 2. 16 – 14 – 12. 2. 4. 21 – 25-30-36 -42. 200 MHz. 48. 1152. 400 MHz. Proposed Pb-Pb 50/75 ns scheme for after LS2. Pb ions / (future) LHC bunch. LEIR

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Pb-Pb Scenario for post-LS2 D.Manglunki

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  1. Pb-Pb Scenario for post-LS2D.Manglunki

  2. Nb of bunches Harmonic number / Frequency 6injections 2 2 16 – 14 – 12 2 4 21 – 25-30-36 -42 200 MHz 48 1152 400 MHz Proposed Pb-Pb 50/75 ns scheme for after LS2 Pb ions / (future) LHC bunch LEIR (1.6 109 Pb ions / 3.6 s) 4 108 200ns PS batch expansion 100ns PS bunch splitting followed by batch expansion(100ns bunch spacing) 12-24-21 4 50ns PS batch compression(50ns bunch spacing) 3 108 4 50ns 75ns SPS at injectionafter 12 transfers from PS, with 75ns batch spacing 2.2 108 50ns 75ns LHC at injection,after 24 transfers from SPS 1.5 108 b* = 0.5 m -> L = 9 1027 cm-2 s-1

  3. 12 injections in SPS: peak lumi and intensity scaling

  4. 8 injections in SPS: peak lumi and intensity scaling

  5. 8 injections in SPS: peak lumi and intensity scaling

  6. Optimum number of injections into the SPS(50/75ns)

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