• - Factory Acceptance Test (FAT) on two ordered expected at warm conditions before the end of 2026 if components arrive at GSI by early December; otherwise, FAT will shift to January 2027.
    - The first cooldown of the anti-crash assembly cannot take place in 2026 due to prioritizing test facility capacity for reworked Quadrupole Doublet Modules (QDM) needed for tunnel installation; cold testing a single component requires 1 month, and only 1 feed box is currently available.
  •  
  •  PI Stretched Wire System Delivery, Calibration, and Hardware Stability
    - The PI contract and contracted services must conclude in 2026, with 2D measurement services required in the first two weeks of December 2026 and payment targeted for mid-December 2026.
    - The system must be mounted on the support frame, tested, and operational by the second week of November 2026.
      - Applying 2D calibration factors alters stage trajectory diagonally to correct vertical misalignments, which could slightly change field measurement paths.
      - Factors can be uploaded or disabled in the controller software at any time without blocking immediate use.
      - Zero/baseline reference measurements must be completed before applying correction factors, requiring an on-site reference magnet at GSI for revalidation.
    - The resonance frequency search issue during sag measurement was resolved by increasing the stage acceleration limit.
    - Low-frequency noise was observed in measurements; verify that stage locking screws on the rails are properly tightened to eliminate low-frequency shaking.

  • Validation of Stretched Wire FFMM Scripts (AC and DC)
    - Multipole and centering measurement scripts were successfully validated for both AC and DC modes.
    - Stage movements along both axes were verified; moving one axis at a time (X or Y) provides higher precision and produces identical results.
    - Repeatability tests confirmed consistent flux amplitude and multipole coefficient measurements.
  •  
  • Power Supply Limitations and Configuration Strategy
    - The current built-in EA/Tektronix power supply is a 2-quadrant supply limited to DC up to 30 A (due to a faulty cooling fan under warranty) and cannot output negative voltage/current for AC mode.
    - A Kepco bipolar power supply (±20 A) is available at GSI with analog input; options discussed include using it or procuring a GPIB-driven digital power converter capable of AC/DC sine wave generation.
  •  
  • DCCT Procurement Requirements
    - The current DCCT only measures true RMS and cannot measure bidirectional AC current needed for FFMM post-processing.
    - An updated version of the DCCT model currently used by CERN will be procured for GSI to enable proper AC measurements.
  •  
  • Rotating Coil Probe Development at GSI
    - PCB production and mechanical layout contracts have been initiated.
    - Mechanical drawings are scheduled to be sent out by mid-November 2026 to assess manufacturing capacity and receive quotes.
    - PCB production lead time is quoted at 10 weeks, with efforts underway to negotiate faster turnaround.
    - Axon wiring and connectors are largely available; manual assembly of cable harnesses will proceed in parallel with mechanical fabrication.
  •  
  • Long-Term Plans and System Improvements
    - Hardware Integration and Upgrades:
      - Installing a PI motor controller unit located in Building 311 into a CERN system (confirmed compatible with Stretched Wire 7).
      - Considering replacing the PXI crate with a setup utilizing a Multifunction I/O (MIO) DAQ, requiring PC and component replacements.
      - Noted hardware requirements for implementing vibrating and oscillating wire modes in the GSI system.
    - Software Developments:
      - Priority to integrate post-processing into the AC multipole script to eliminate dependency on external Python scripts.
    - Continuous Acquisition R&D:
      - Moving from static step-by-step acquisition to continuous acquisition along circular trajectories in DC multipole mode to reduce run duration.
      - Concerns regarding dynamic wire oscillation stabilization and the requirement for stage triggering points.
  •  
  • System Delivery and Transportation to GSI
    - Validation and Timelines:
      - 1–2 weeks remaining to finalize DC mode measurements before transport.
      - Full validation of the DC mode is the highest priority so GSI can use it directly upon arrival.
    - Transport Logistics:
      - Logistics must ensure direct delivery to the test facility, bypassing intermediate storage.
      - Purchase and install shock sensors on shipping crates.
      - Coordination between CERN and GSI transport procedures will be managed by Daryl and Anna with logistics contacts.
  •  
  • Tension Sensor Procurement
    - Procurement Issues:
      - Contact lost with the US-based provider of the tension sensor; delivery has not arrived and supplier communication is unresponsive.
      - Standard 26-week lead time; sensor is sensitive to radial movements.
    - Action Plan:
      - Obtain direct contact from previous purchases to acquire multiple spare units for both CERN and GSI setups.