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TE 01 -TE 02 DLDS Elements

TE 01 -TE 02 DLDS Elements. BINP-KEK. Main parameters of TE 01 -TE 02 DLDS. Number of modes 2 Operating modes TE 01 ,TE 02 Main waveguide diameter 120 mm Node-to-node distance 56.3 m TE01 loss -0.001dB/m TE02 loss (measured) -0.004dB/m Average main waveguide loss

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TE 01 -TE 02 DLDS Elements

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  1. TE01-TE02 DLDS Elements BINP-KEK

  2. Main parameters of TE01-TE02 DLDS • Number of modes 2 • Operating modes TE01,TE02 • Main waveguide diameter 120 mm • Node-to-node distance 56.3 m • TE01 loss -0.001dB/m • TE02 loss (measured) -0.004dB/m • Average main waveguide loss • of 4-node DLDS 3.5%

  3. TE01 - TE02 Mode Launcher 600 MW, 800 ns Beam direction RF Structure, 85 MW, 70 Mv/m 8 Klystrons 75 MW, 120 Hz TE02 Mode Extractor Circular Waveguide (Ø 120 mm) 56.3m Super Hybrid Tap-off System 56.3m TE02 Mode Extractor 56.3m 6m TE01 - TE02 2x2 DLDS system

  4. Basic Elements of TE01-TE02 DLDS • H-Hybrid • TE10-TE01 Converter • TE01-TE02Launcher • TE01-TE02Extractor • 1:1 Power Splitter • 1:2 Power Splitter • 90o TE01 Bend • Phase Shifter

  5. H-Hybrid. HFSS calculations.

  6. H-Hybrid. High Power Model

  7. H-Hybrid. Low power RF test results Transmission between ports 1 – 2 (S12) and 1 – 4 (S14) Hybrid port # 1 VSWR (S11)

  8. TE10-TE01 Mode Converter Output diameter 46 mm Length 280 mm

  9. TE10-TE01 Mode Converter. HFSS Calculations

  10. TE10-TE01 Mode Converter. Low Power Model

  11. TE10-TE01 Mode Converter.Low power RF test results Transmission from the choke-type TE01 converter (Ø40mm circular waveguide) to the tested TE01 converter (Ø46mm circular waveguide) for tree angles between H-plane of the WR90 inputs of these converters SWR for the TE01 Mode Converter

  12. TE02 Mode Extractor TE01-TE02 Mode Launcher

  13. TE01-TE02 Launcher-Extractor. HFSS calculations.

  14. TE01-TE02ModeLauncher TE02ModeExtractor

  15. TE01-TE02 Mode Launcher-Extractor. HFSS calculations. Emax = 480kV/cm for 600MW

  16. Part of TE01-TE02 Launcher-Extractor

  17. TE01-TE02 Mode Launcher-Extractor. Low Power RF Model

  18. TE01-TE02 Mode Launcher-Extractor plus Overmoded Tapers.

  19. TE02 Mode Launcher and Extractor. Low Power RF Test Setup.

  20. TE01-TE02 Mode Launcher-Extractor.Low power RF test results. VSWR of the TE01-TE02Launcher VSWR of the TE02 Mode Extractor

  21. TE01-TE02 Mode Launcher-Extractor.Low power RF test results. Isolation between port #1 and port #2 for the TE01-TE02 Launcher Isolation between port #1 and port #2 for the TE02 Mode Extractor

  22. TE02 Mode Extractor.Low power RF test results.

  23. TE01-TE02 Mode Launcher-Extractor.Low power RF test results. Transmission from the TE01-TE02 Launcher port #1 to the TE02 Extractor port #1 and port #2 Transmission from the TE01-TE02 Launcher port #2 to the TE02 Extractor port #1 and port #2

  24. 1/2 TE01 Power Splitter. HFSS Calculations.

  25. 1/2 TE01 Power Splitter. Low Power RF Model.

  26. 1/2 TE01 Power Splitter. Low Power RF Test Results. SWR of the ½ TE01 Power Splitter

  27. 1/2 TE01 Power Splitter. Low Power RF Test Results. Squared transmission coefficient S12 for the TE01 1/2 Power Splitter for two angles between H-plane of WR90 input of the TE01 converter and WR90 output #2 of the tested splitter. Squared transmission coefficient S12 for the TE01 1/2 Power Splitter for two angles between H-plane of WR90 input of the TE01 converter and WR90 output #3 of the tested splitter.

  28. 1/3 TE01 Power Splitter. HFSS Calculations

  29. 1/3 TE01 Power Splitter. Low Power RF Model.

  30. 1/3 TE01 Power Splitter. Low Power RF Test Results. SWR of the 1/3 TE01 Power Splitter

  31. 1/3 TE01 Power Splitter. Low Power RF Test Results. Squared transmission coefficient S12 for the TE01 1/3 Power Splitter for two angles between H-plane of WR90 input of the TE01 converter and WR90 output #2 of the tested splitter. Squared transmission coefficient S12 for the TE01 1/3 Power Splitter for two angles between H-plane of WR90 input of the TE01 converter and WR90 output #3 of the tested splitter.

  32. 90o TE01 Bend. HFSS Calculations. 49 R=91

  33. 90o TE01 Bend. Low Power RF Model.

  34. 90o TE01 Bend. Low Power RF Test Results.

  35. Quasi-pulse measurement with long pipe The measurements of propagation of pure TE01 and TE02 modes. Measurements layout:

  36. Layout in tunnel:

  37. Result of measurements: TE01 one-way efficiency 98.54% TE02 one-way efficiency 95.20% Loss: TE01 - 1.46% (theory 1.18% ) TE02 - 5.75% (theory 4.31%)

  38. Measurements of TE01-TE02 Launcher-Extractor performances

  39. ‘No long pipe’ setup:

  40. Results of measurements Measured efficiency of launching and extraction of TE01 mode 97.1% Measured efficiency of launching and extraction of TE02 mode 97% Theoretical estimated efficiency 97%

  41. Measurements with long pipe.

  42. Obtained results are discrepant. The reasons are not clear enough. One of them can be low quality of backward WR90 waveguide. Measurements are going to be repeated in end of June. As preliminary results can be taken ones from the measurements of below setup:

  43. Results of measurements: Device1; Efficiency of TE01 extr. 98.7 Device1; Efficiency of TE02 extr. 97.7 Device2; Efficiency of TE01 extr. 96.9 Device2; Efficiency of TE02 extr. 98.8

  44. Average efficiency of TE01 extraction 97.8% Average efficiency of TE02 extraction 98.2% We can expect the efficiency of 2-mode DLDS (loss in pipe not included) ~ 96%

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