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Breakdown Position Analysis Using RF Timing Information

Detailed analysis of breakdown positions using RF timing data with focus on calibration errors and noise interference. Statistical breakdown event information and histogram visuals included.

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Breakdown Position Analysis Using RF Timing Information

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  1. T18_vg2.4_disk_#2 break down position analysis using rf timing information Kazue Yokoyama, Steffen Doebert

  2. T18_vg2.4_disk_#2 break down position 400 ns data

  3. T18_vg2.4_disk_#2 break down position 252 ns data

  4. T18_vg2.4_disk_#2 break down position 252 ns data

  5. T18_vg2.4_disk_#2 break down position 252 ns data (DPO run 32) Missing energy of breakdown-2 pulse Missing energy of breakdown-1 pulse, Mainly calibration error and noise on signal

  6. T18_vg2.4_disk_#2 break down position 252 ns data (DPO run 32) Statistics: 384 events, 105 with missing energy > 20%, 121 with fc upstream < -1, 111 with fc downstream < -1, 105 with both < -1, 67 events gave a reasonable cell No. Finding a reasonable cell umber depends on noise on signals, some events have very little reflection Histogram of the time delay between reflection and transmission, in structure (0-38 ns), earlier often no reflection or noise on reflection, later sometimes very late reflection and no missing energy

  7. T18_vg2.4_disk_#2 break down position 173 ns data

  8. T18_vg2.4_disk_#2 break down position 113 ns data

  9. T18_vg2.4_disk_#2 break down position 53 ns data

  10. T18_vg2.4_disk_#2 break down position all data together

  11. T18vg2.4_quad[5]

  12. T18_vg2.4_quad_#5 DPO run 11, 113 ns Statistics: 400 events, 378 with missing energy > 0%, 379 with fc upstream < -0.03, 382 with fc downstream < -0.03, 369 with both < -0.03, 297 events gave a reasonable cell No.

  13. T18_vg2.4_quad_#5 DPO run 11, 113 ns

  14. T18_vg2.4_quad_#5 DPO run 17, 293 ns

  15. T18_vg2.4_quad_#5 DPO run 4, 51 ns

  16. T18_vg2.4_quad_#5 DPO run 1-10, 51 ns

  17. T18_vg2.4_quad_#5 DPO run 11,12,13,17, 113-293 ns

  18. T18_vg2.4_quad_#5 DPO run 17 Strange asymmetric reflection, no breakdown, no faraday Cup signal

  19. T18_vg2.4_quad_#5 DPO run 17 Strange after pulses, Some events have quite high reflection, in addition normal reflection is quite significant (right plot), is this calibration or mismatch ?

  20. T18D_vg2.4 DPO run 8, 50ns

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