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BPM for Spectromety development status

This update provides a summary of the current progress on various components and prototypes for the spectrometry development project, including BPM design, Al and Cu prototypes, reference cavity, signal processing electronics, and calibration scheme. Key milestones achieved and future plans are outlined.

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BPM for Spectromety development status

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  1. BPM for Spectromety development status A. Lyapin

  2. Summary • BPM design more or less finalized • Al prototype ≥50% done, need ~2 weeks • Need to test the model and fix the tolerances ~2 weeks, may need to modify the design – got nicer feedthroughs • Test bench is operational • Cu (vacuum) prototype – design ≥50% done • Planning to start cutting copper in October • Material (OFC) purchased • Reference cavity – just started with the electrical design so far • Signal processing electronics – overall layout finalized, looking for components, putting together spreadsheets • Calibration scheme – overall layout finalized, key components found, quotes received (~£2-3k project) WP 4.2 meeting, 13 September 2006

  3. Prototype Al model • MSSL finished working on the waveguides (spark erosion) • UCL workshop to continue this week • Slots, holes for the feedthroughs to be put in, beam pipe to be cut to the dimension, other bits and pieces to be put in WP 4.2 meeting, 13 September 2006

  4. Prototype Al model WP 4.2 meeting, 13 September 2006

  5. Cavity BPM test bench • Test bench is up and running • 2.8 GHz oscillator is on its way to UCL • VNA is on its way to RHUL WP 4.2 meeting, 13 September 2006

  6. Cu vacuum prototype • Most of the problems cleared, brazing seems to be ok • DN63 flanges to fit the rest of the ESA beamline, 8 through holes for support • Need to modify the feedthroughs • Reduced the length for easier machining, monopole rejection should be sufficient • Need some input from KEK on tuners WP 4.2 meeting, 13 September 2006

  7. Reference cavity WP 4.2 meeting, 13 September 2006

  8. Electronics WP 4.2 meeting, 13 September 2006

  9. Electronics WP 4.2 meeting, 13 September 2006

  10. Electronics WP 4.2 meeting, 13 September 2006

  11. Calibration scheme • Probably a final scheme now • Can actually use the drive line power, but want to use it for the LO • Still need to find suitable (high conversion gain) detectors • Passive elements are not a problem WP 4.2 meeting, 13 September 2006

  12. Calibration scheme WP 4.2 meeting, 13 September 2006

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