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Carbon Polarimeter Study for Beam Profile and Emittance Measurement

Utilizing carbon targets and a polarimeter detector system to measure beam profile and emittance, comparing and validating IPM and cross-section based values. This study focuses on deuteron beam characteristics, beam emittance, and beam profile analysis at injection energy using target scan mode. The work includes measuring emittance at different positions separated by 500 microns, adjusting timing for DAQ accuracy, and combining emittance measurements with IPM data.

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Carbon Polarimeter Study for Beam Profile and Emittance Measurement

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  1. Carbon Polarimeter Study The purpose of the study was to use the carbon targets and polarimeter detector system to measure the beam profile and emittance to compare and validate the IPM and cross section based emittance values.

  2. Beam Characteristics Deuteron beam only Beam at Injection Energy Single Bunch Target Scan mode, 1 second measurement at 10-20 positions separated by ~500 microns. Detector bias voltage: 90 volts

  3. No reliable IPM result to compare with Vertical Target #5 sixth try

  4. Beam Emittance Emittance (p mm-mr) Time of scan measurement

  5. Beam Profile Beam width (sigma, in mm) Time of scan measurement

  6. Work to do • Things look good now, but we need more APEX time to set the timing of the DAQ correctly. • Measure from 1 to 20 to 95 bunches. • Measure emittance at store. • Combine emittance measurements with IPM on the same beam.

  7. Backup

  8. Horizontal Target #4

  9. Horizontal Target #2

  10. Horizontal Target #3 second try

  11. Horizontal Target #3 first try

  12. Horizontal Target #1

  13. Vertical Target #6 second try

  14. Vertical Target #6 first try

  15. Vertical Target #4 second try

  16. Vertical Target #4 first try

  17. Vertical Target #2 Problems!

  18. Vertical Target #1 Edge still evident

  19. Vertical Target #1 first try

  20. Vertical Target #1 second try

  21. Vertical Target #1 third try

  22. Vertical Target #1 fourth try

  23. Vertical Target #1 fifth try

  24. Vertical Target #5 first try

  25. Vertical Target #5 second try

  26. Vertical Target #5 third try

  27. Vertical Target #5 fourth try

  28. Vertical Target #5 fifth try

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