Present:
Matthew Wing, Edda Gschwentner, Michele Bergamaschi, Collette Pakuza, Fern Pannell, Debdeep Ghosal, Joe Wolfenden, Nikita Zena van Gils, Eleonora Belli

Follow-up and Discussion:

• Next Meeting:
  • Updates on emittance measurement for the foil/no-foil case (D. Cooke)
  • Results from simulations (J. Farmer)
• Spectrometer Dark Room & Light Transport Mirrors

• • Not needed for Run 2c.
  • To do: Decision to be made at the next TB meeting.
• Spectrometer Design & Integration

• • M. Turner communicated the new spectrometer design to integration.
  • Magnets have been included in the drawings at approximate positions.
  • To do: D. Cooke to verify and confirm magnet positions.
  • To do: Follow up on the implementation of the OSR diagnostic.

OSR Diagnostic (D. Ghosal)

• The diagnostic can be implemented either on-axis or off-axis.
• To do: M. Turner to follow up with integration and the Liverpool team to identify feasible options.
• For the on-axis geometry, a chamber should follow the dipole directly.
• Window material options: fused silica or BK7.
• To do: D. Ghosal to define the window size for the off-axis geometry after receiving beam parameter inputs.
• Emittance could not yet be retrieved from previous measurements; new measurements are planned for spring.
• To do: D. Ghosal & J. Wolfenden to prepare a presentation for the Physics Board explaining what the diagnostic can achieve with AWAKE parameters and its approximate setup.
• To do: D. Ghosal to determine the emittance measurement range after receiving beam parameters.

Electron Beam Energy Analysis (F. Pannell)

• F. Pannell continues to analyze energy gain measurements.
• The 90th percentile analysis is proving challenging due to low signal levels.