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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 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
S. Tantawi method CLIC_DDS2HPT Cell#1 │S22│=0.9527 ϕ22=179.65
Dipole mode : circuit parameters DDS1 : Plain curve ; DDS2 : Curve with dots
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
Matching cell design L • Two options • Vary a and b : very small room to vary b • vary a and L
N=1 a: 4-6 mm N=2 a: 4-6 mm N=3 a: 4-6 mm
N=1 a: 4.4-4.6 mm N=2 a: 4.4-4.6 mm N=3 a: 4.4-4.6 mm
Cell # 1 Where S= Poynting vector @ 95 MV/m
Cell # 24 @ 138 MV/m
Cell # 24 Cell # 1