CLICDDS study 04 11 2010 V Khan Vasim

CLIC_DDS study 04. 11. 2010 V. Khan Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 1/17

Enhanced damping: Eight manifolds Four regular and four additional manifolds Significant coupling Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 2/17

Cell # 1 Cell parameters a = 4. 3 mm t = 2. 6 mm Rc = 9. 0 mm Mr = 2. 0 mm Mc = 15. 1 mm Fundamental mode properties Q=7080 R’/Q=10. 356 (kΩ/m) vg=3. 3 (%c) Es/Eacc=2. 22 Hs/Eacc=4. 3 (m. A/m) Sc/Eacc=5. 45 x 10 -4 (W/μm 2/Eacc 2) fsyn=16. 1 GHz Dipole mode properties Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 3/17

Cell parameters a = 2. 5 mm t = 2. 8 mm Rc = 8. 8 mm Mr = 2. 0 mm Mc = 15. 1 mm vg=0. 45 (%c) Cell # 24 fsyn=17. 89 GHz Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 4/17

Two Cell result Lowest dipole mode properties Δf=2. 25 σ=1. 78 GHz Δf/fc= 10. 5 (%c) Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 5/17

Eight manifolds and Sic As the coupling in the last cell is poor it is important to enhance coupling by optimising the last cell Additional manifold εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=1 Damping material Regular manifold Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 6/17

εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=2. 6 Vasim Khan Eight manifolds and Sic MEW group meeting, Cockcroft Institute 04. 11. 10 7/17

εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=0. 5 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 8/17

εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=1 M Si. C D M D D Si. C M Interesting couplings Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 9/17

εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=1. 5 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 10/17

εr=13 tanδ=0. 02 NMr=2. 8 Damp_r=2 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 11/17

εr=13 tanδ=0. 02 NMr=2 Damp_r=0. 5 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 12/17

εr=13 tanδ=0. 02 NMr=2 Damp_r=1 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 13/17

εr=13 tanδ=0. 02 NMr=2 Damp_r=1. 5 Si. C M Si. C D D D M Si. C M Interesting couplings Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 14/17

Latest! εr=11 tanδ=0. 02 NMr=2. Damp_r=1. 5 Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 15/17

Simulations done: To be analysed • • • Nmr=2. 8 and Damp_r=1. 0 εr=10 to 15 : step=1 tanδ=0 to 0. 1 step =0. 02 Φdi = 0 to 180 : step = 15 deg. => 468 simulations • • • Nmr=2. 0 and Damp_r=1. 5 εr=10 to 15 : step=1 tanδ=0 to 0. 1 step =0. 02 Φdi = 0 to 180 : step = 15 deg. => 468 simulations 936/13 = 72 dispersion curves per band. There are 8 bands in each simulation Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 16/17

About Thesis • Corrections on remaining chapters are in progress • Thesis submission date finalised : 30/11/2010 • Defence date is subject to availability of examiners : ~ End of Jan 2011 XB-10 • Paper on CLIC_DDS_A is in progress • Paper on CLIC_HPA needs results • Simulations and analyses on HPA are in progress, but need better result than DDS_A Vasim Khan MEW group meeting, Cockcroft Institute 04. 11. 10 17/17