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AWAKE Run 2bc Spectrometer

Europe/Zurich
18/3-008 - CLIC Meeting room (CERN)

18/3-008 - CLIC Meeting room

CERN

20
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    • Discussion
      Conveners: David Andrew Cooke (University of London (GB)), Fern Elizabeth Pannell (University of London (GB)), Fern Pannell (University College London), John Patrick Farmer (MPP / CERN), Marlene Turner (CERN)

      Attendance: M. Turner, A. Caldwell, M. Wing, D. Cooke, J. Farmer, F. Pannell, E. Gschwendtner

      Discussion:

      • New GUI Implementation:
        • The new GUI with background subtraction has been completed and deployed in the control room.
        • The energy error in the previous system has now been fixed.

      • Magnet GUI Update:
        • The Magnet GUI has been upgraded to handle correlated beams as well.

      • ICT Measurements
        • ICT measurements have been performed on cameras 5-7.
        • To Do: F. Pannell will present the analysis of these measurements in one of the next meetings.

      • CLEAR Data Analysis
        • To Do: F. Pannell to present CLEAR data analysis in an upcoming meeting.

      •  OSR Emittance Simulations
        • D. Cooke has shared the spectrometer design with the group from Liverpool for OSR emittance simulations.
        • To do: M. Turner to ask for status update.

      • New Spectrometer Design
        • The new spectrometer design is in progress:
          • Doublet length: Approximately 18 meters.
          • Triplet length: Approximately 25 meters.
          • Both configurations should fit within the available facility space (around 60 meters).
          • To Do: Investigate magnifications.
        •  E. Gschwendtner emphasized the need to provide information to SY-EPC on the required power converters soon.
        • Decision: A mini-review will be held at the beginning of November, followed by a presentation at the next technical board meeting.

       

      Presentation by F. Pannell

      • To do: F. Pannell and D. Cooke to do the charge calibration for the new cameras based on the old camera
      • To do: F. Pannell to prepare summary on CLEAR and calibration results for the next TB.
      • To do: F. Pannell and D. Cooke to check on which camera the spectrometer is imaging in x and y.
      • To do: F. Pannell to use the BG subtraction method from D. Cooke also for emittance analysis. 

       

      Presentation by J. Farmer:

      • Emittance will grow until new matching condition is reached.
      • Simulations predict significant emittance growth due to plasma filament at the plasma exit. Need to be checked with a real proton bunch.
      • A. Caldwell mentions the use of plasma mirrors to couple in the laser pulse
        • M. Turner cautions that the needed energy per pulse may be too high, one should do the calculation/estimate.