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Surface electric field distribution in 1/4 th of the structure,

Field distribution in XL4 output structure. Surface electric field distribution in 1/4 th of the structure, max. field in the coupler cell 65 MV/m, output power 50 MW, average gradient in coupler cell < 20 MV/m. Surface magnetic field distribution,

ursula-moreno
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Surface electric field distribution in 1/4 th of the structure,

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  1. Field distribution in XL4 output structure Surface electric field distribution in 1/4th of the structure, max. field in the coupler cell 65 MV/m, output power 50 MW, average gradient in coupler cell < 20 MV/m Surface magnetic field distribution, field on the flat part of the coupler iris ~0.28MA/m (estimated max. field 0.7 MA/m for 80 um radius) H [A/m] s [mm] Max. temperature on surface for output power of 50 MW and different pulse width vs. time, for 50 MW and 1.5 us temperature rise is 260 deg. C. Mesh Surface magnetic field V.A.Dolgashev, C. Pearson, 25 March 04.

  2. Field distribution in XL4 output structure Surface electric field distribution in 1/4th of the structure, max. field in the coupler cell 65 MV/m, output power 50 MW, average gradient in coupler cell < 20 MV/m Surface magnetic field distribution, field on the flat part of the coupler iris ~0.28MA/m (estimated max. field 0.21 MA/m for 80 um radius) H [A/m] s [mm] Max. temperature on surface for output power of 50 MW and different pulse width vs. time, for 50 MW and 1.5 us temperature rise is 23 deg. C. Mesh Surface magnetic field V.A.Dolgashev, 25 March 04.

  3. Field distribution in XL4 output structure Surface magnetic field distribution in 1/4th of the structure, max. field in the coupler output power 50 MW Surface magnetic field distribution, field on the flat part of the coupler iris ~0.28MA/m (estimated max. field 0.7 MA/m for 80 um radius) Surface electric field distribution, field on the flat part of the coupler iris ~0.23MV/m (estimated max. field 0.6 MV/m for 80 um radius) Surface electric field distribution in 1/4th of the structure, max. field in the coupler cell 65 MV/m, output power 50 MW, average gradient in coupler cell < 20MV/m V.A.Dolgashev, C. Pearson, 25 March 04.

  4. Evaluation of matching of the output cavity using Norman’s method

  5. Evaluation of matching of the output cavity using Norman’s method High magnetic field coupler Low magnetic field coupler

  6. First iteration of the coupler dimensions No losses 160227 tetrahedra Mesh PML layer test

  7. 1st iteration 91990 tetrahedra !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 3. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905

  8. 2nd iteration 91990 tetrahedra !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 14 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905

  9. 3rd iteration 77079 tetrahedra !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 13.277 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 50 MW output #define REC_ROUNDING_KLY 0.030 #define REC_X_KLY 1.0390 #define REC_Y_KLY_WG .7320 Maximum magnetic field ~0.22 MA/m, ~25 deg. C at 1.5 us

  10. 4th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 13.127 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_ROUNDING_KLY 0.030 #define REC_X_KLY 1.0390 #define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  11. 5th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 13.127 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_ROUNDING_KLY 0.030 #define REC_X_KLY 1.0390 #define REC_Y_KLY_WG .7212 //#define REC_Y_KLY_WG .7304

  12. 6th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 13.127 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320 //((.7320-(0.4/25.4)))

  13. 7th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 13.127 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  14. 8th iteration !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.658 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  15. 9th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.658 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  16. 10th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.702 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6359 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320 //((.7320-(0.4/25.4)))

  17. 11th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.973 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6359 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  18. 12th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.3824 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6556 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  19. 13th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.500 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6500 //#define REC_Y_KLY_WG 0.6556 //#define REC_Y_KLY_WG 0.6359 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  20. 14th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.515 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6401 //#define REC_Y_KLY_WG 0.6556 //#define REC_Y_KLY_WG 0.6359 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

  21. 15th iteration !************run parameters******************* _nra: 17 _r_step__i_step: 0.006 0.025 _SearchNotScan(Y/N): Y _Number_of_search_iterations: 4 _WhatToChange(1-b_cpl_w;2-b_cpl_b_1;3-b_cpl_b_2): 1 !******************coupler****************** #d: 2.9464 #b: 10.84006564 #iris_w: 12.504 #iris_r: 0 #a_beam_pipe: 7.2009 #ra_beam_pipe: 0.9398 #l_beam_pipe: 8 #w_wgd: 22.86 #r_wgd: 2. #l_wgd: 13 #iris_th: 4 #race_r: -1 #race_dr: -1 #n_phi: 21 !2a 2b t D rr rz ! regular structure 14.40180 26.4922 1.8796 4.85140 -1.00000 -1.00000 13.80998 25.67432 1.8796 4.8514 -1.00000 -1.00000 11.99896 23.6982 2.1336 5.35686 -1.00000 -1.00000 9.525 10.79500 4.00000 3.00000 1.905 1.905 #define REC_Y_KLY_WG 0.6432 //#define REC_Y_KLY_WG 0.6405 //#define REC_Y_KLY_WG 0.6401 // #define REC_Y_KLY_WG 0.6500 // #define REC_Y_KLY_WG 0.6500 //#define REC_Y_KLY_WG 0.6556 //#define REC_Y_KLY_WG 0.6359 //#define REC_Y_KLY_WG .6931 //#define REC_Y_KLY_WG .6997 //#define REC_Y_KLY_WG .6767 //#define REC_Y_KLY_WG .71 //#define REC_Y_KLY_WG .7304 //#define REC_Y_KLY_WG .7320

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