CLICDDS HighPhaseAdvance V Khan Vasim Khan MEW group

Group velocity CLIC_DDS_A : Φ = 120 cell L= 8. 3316 mm Φ =

E-field Φ = 120 H-field Φ = 150 Φ = 120 Sc Φ =

Eacc_Loaded Eacc_unloaded Φ = 150 Φ = 120 Φ = 150 Vasim Khan Φ

High phase advance : Φ = 150 Vasim Khan MEW group meeting, Cockcroft Institute

Comparison RF parameters Unit DDS_A 5 Pi/6 N 24 5 Pi/6 N 20 Q

Next Task Feb Mar Apr May-Jul Sept Oct onwards Finalising 9 regular cells Done

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CLIC_DDS High_Phase_Advance V. Khan Vasim Khan MEW group meeting, Cockcroft Institute 13. 05. 10 1/6

Group velocity CLIC_DDS_A : Φ = 120 cell L= 8. 3316 mm Φ = 120 High phase advance : Φ = 150 cell L= 10. 4145 mm Φ = 150 25% increase in the cell length Q R’/Q Φ = 120 Φ = 150 Φ = 120 ? Region of ambiguity Vasim Khan MEW group meeting, Cockcroft Institute 13. 05. 10 2/6

E-field Φ = 120 H-field Φ = 150 Φ = 120 Sc Φ = 150 Φ = 120 Vasim Khan MEW group meeting, Cockcroft Institute 13. 05. 10 3/6

Eacc_Loaded Eacc_unloaded Φ = 150 Φ = 120 Φ = 150 Vasim Khan Φ = 120 MEW group meeting, Cockcroft Institute 13. 05. 10 4/6

High phase advance : Φ = 150 Vasim Khan MEW group meeting, Cockcroft Institute 13. 05. 10 5/6

Comparison RF parameters Unit DDS_A 5 Pi/6 N 24 5 Pi/6 N 20 Q (In / Out) - 6542/7500 R’ (In / Out) MΩ/m 5020 / 6534 51 / 118 66/112 vg/c (In / Out) % 2. 07 / 1. 0 1. 7 / 0. 78 Pin MW 71 66. 5 62. 5 Eaccmax (L. /Un. L. ) MV/m 105 / 132 112. 5 / 125 109 / 127 ∆Tmaxsur o. K 51 53 49 Emaxsur MV/m 220 244 255 Scmax W/μm 6. 75 6. 22 5. 85 RF-beam efficiency % 23. 5 29. 8 27 Vasim Khan 2 MEW group meeting, Cockcroft Institute 13. 05. 10 6/6

Next Task Feb Mar Apr May-Jul Sept Oct onwards Finalising 9 regular cells Done for the 1 st str. Matching end cells HFSS: Full structure (N+2 cells) simulations To do Comparison of results (wakefield)in Gdfid. L Mechanical design & fabrication (? ) Thesis writingsubmission to RMJ To do Thesis submission to Uni. Vasim Khan MEW group meeting, Cockcroft Institute 13. 05. 10 7/6