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MB Bunch spacing 7  8 buckets MB Bunch pop ulation 5.8 10 9  5. 2 10 9

DB updated parameters and a first look at power flow and overall consumption. B.Jeanneret, R. Corsini CLIC parameter WG, 23 April 2007. Update after CPWG 15 Apr 07 : Alexej new param eters. MB Bunch spacing 7  8 buckets MB Bunch pop ulation 5.8 10 9  5. 2 10 9

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MB Bunch spacing 7  8 buckets MB Bunch pop ulation 5.8 10 9  5. 2 10 9

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  1. DB updated parameters and a first look at power flow and overall consumption B.Jeanneret, R. Corsini CLIC parameter WG, 23 April 2007 Update after CPWG 15 Apr 07 : Alexej new parameters • MB Bunch spacing 7  8 buckets • MB Bunch population 5.8 109 5.2 109 • HDS power 76 MW  69 MW • RF pulse length 244 ns  297 ns • MB train length 154 ns 207 ns Alexej used frep = 44 Hz We use below,as discussed,frep = 50 Hz L1= 3.75 1034cm-2s-1

  2. definitions Alexej flat top=MB train length = 207ns tp tf tr

  5. Drive Beam • Keep scheme 2 * 3 * 3 • Still two drive beam complexes

  6. Comments • Nb stations : 32  26 , L= 810 m • IDB : 100 A  95 A • E : 2.0 GeV  2.35 GeV • Igor asked for suppressing the detuning of the DB • the presently assumed form factor FDB=0.93 includes as well the remaining inefficiency after detuning compensation – about 5% with old parameters. • Now with no detuning, the losses should be about 1.5 % only. • FDB will be updated (to better), when all other small inefficiencies will be reconsidered.

  7. Power Consumption CPWG 23 Apr 07 CLIC Note 627 294 7 32 27 22 4 385 38.9 10 3.75 9.7

  8. CLIC Note 627 L1= 3.3 1034cm-2s-1

  9. CPWG 23 Apr 07 385 320 316 32 27 185 32.5 172 31 .83 133 10 % 125 .31 39 L1= 3.75 1034cm-2s-1

  10. CPWG 15 Apr 07 342 278 274 31 26 161 31.6 150 32.5 .83 116 10.3 % 108 .325 35 L1= 3.3 1034cm-2s-1

  11. 16.6 MW + 5.3 MW + 5 MW = 27 MW CPWG 23 Apr 07 385 316 MW 320 274 27 32 161 22.2 MW + 31.6 5 MW + Water cooling (93% of total 3% losses) 150 following CLIC Yellow report CERN 2000-008 4.7 MW = Air cooling (7% of total 40% losses) 32.5 .83 32 MW 116 Total power for cooling about 20MW 10.3 % 108 .321 39

  12. 16.6 MW + 4.7 MW + 4.4 MW = 26 MW CPWG 15 Apr 07 342 274 MW 278 274 26 31 161 22.2 MW + 31.6 4.4 MW + Water cooling (93% of total 3% losses) 150 following CLIC Yellow report CERN 2000-008 4.2 MW = Air cooling (7% of total 40% losses) 32.5 .83 31 MW 116 Total power for cooling about 18MW 10.3 % 108 .321 35

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