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Investigation of RF Properties and Thermal Conditions in DDS2_HPT Surface Fields

This study examines the RF properties of DDS2_HPT surface fields, focusing on Esur with a maximum of 220 MV/m and a temperature change (∆T) of 51 degrees. Key outcomes include an acceleration electric field (Eacc_UL) of 131 MV/m and a power density (Sc) of 6.75 W/μm², achieving an RF beam efficiency of 23.5%. The analysis presents both unloaded and loaded beam conditions, exploring the matching cell design with two variants for optimization in terms of parameters 'a' and 'b'. Further slides illustrate cell performance at specified electric fields and conditions.

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Investigation of RF Properties and Thermal Conditions in DDS2_HPT Surface Fields

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Presentation Transcript

  1. CLIC_DDS2HPT 04.03.2010 V. Khan

  2. DDS2_HPT : Surface fields

  3. 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

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

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

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

  7. Next

  8. Back up slides

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

  10. Cell # 24 @ 138 MV/m

  11. DDS2_HPT structure

  12. Cell # 24 Cell # 1

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