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CLIC_DDS2HPT 11.03.2010

CLIC_DDS2HPT 11.03.2010. V. Khan. Cell#2. Cell#5. Cell#1. Cell#13. Cell#17. Cell#9. Cell#23. Cell#24. Cell#21. 24 cells No interleaving. Undamped. Damped. ∆fmin = 62.3 MHz ∆tmax =16.05 ns ∆s = 4.81 m. 24 cells No interleaving. N=1. Scanning a’s and g’s for a min S11.

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CLIC_DDS2HPT 11.03.2010

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  1. CLIC_DDS2HPT 11.03.2010 V. Khan

  2. Cell#2 Cell#5 Cell#1 Cell#13 Cell#17 Cell#9 Cell#23 Cell#24 Cell#21

  3. 24 cells No interleaving Undamped Damped ∆fmin = 62.3 MHz ∆tmax =16.05 ns ∆s = 4.81 m 24 cells No interleaving

  4. N=1 Scanning a’s and g’s for a min S11

  5. S. Tantawi method CLIC_DDS2HPT Cell#1 │S22│=0.9527 ϕ22=179.65

  6. Next

  7. Back up slides

  8. Dipole mode : circuit parameters DDS1 : Plain curve ; DDS2 : Curve with dots

  9. DDS2_HPT : Surface fields

  10. DDS2_HPT : RF properties Esur Max. Values Esur=220 MV/m ∆T = 51 deg. Pin= 70.8 Eacc_UL=131 MV/m Sc=6.75 W/μm2 RF-beam-eff=23.5% 35*Sc Eacc Pin ∆T Dashed curves : Unloaded condition Solid curves: Beam loaded condition

  11. Matching cell design L • Two options • Vary a and b : very small room to vary b • vary a and L

  12. N=1 a: 4-6 mm N=2 a: 4-6 mm N=3 a: 4-6 mm

  13. N=1 a: 4.4-4.6 mm N=2 a: 4.4-4.6 mm N=3 a: 4.4-4.6 mm

  14. Next

  15. Cell # 1 Where S= Poynting vector @ 95 MV/m

  16. Cell # 24 @ 138 MV/m

  17. DDS2_HPT structure

  18. Cell # 24 Cell # 1

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