FONT ATF Operation Meeting Summary

Operation meeting summary including aims for the week, tasks conducted, calibration challenges, feedback system operations, and synchronization activities related to FONT ATF project on February 23, 2025.

• Meeting summary
• Operations
• Synchronization
• Data analysis
• FONT ATF

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Presentation Transcript

1. FONT ATF Operation Meeting 11 December 2015 Neven Blaskovic Kraljevic, Talitha Bromwich, Rebecca Ramjiawan Sunday, 23 February 2025 FONT 1

2. Aims for this week Beam time shift IPBPM Static waveform study. IP/upstream synchronisation Synchronise upstream FONT board and SIS digitiser at the IP so that we can take data at the IP BPMs whilst operating the upstream feedback system. Feedback for IPBSM study Operate upstream FONT feedback system during beam-size tuning shifts in two-bunch mode. Sunday, 23 February 2025 FONT 2

3. Wednesday Owl Shift Static waveform study in IPBPM dipole cavity signals On IPBY, add splitter instead of hybrid to observe symmetric modes. Then add C-band BPF 6.4 GHz +/- 100 MHz after splitter. ~ 60 MHz static signal not removed. Sunday, 23 February 2025 FONT 3

4. Wednesday Owl Shift Two port study on IPBY Sending the two dipole cavity ports through separate sets of electronics. Calibrate for position to find scale factor k. Expect the absolute values to be the same for both ports i.e. identical gains. N.B. Calibrations 11 and 12 had the electronics switched. Sunday, 23 February 2025 FONT 4

5. Wednesday Owl Shift Attempted to repeat on IPCY Had difficulties calibrating: observed discontinuity. This was previously seen in June when working at much higher charge with 180-degree hybrid. Sunday, 23 February 2025 FONT 5

6. Synchronisation of IP and upstream Launched FONT publishing to Epics. Edited FONT LabView DAQ to include publishing of ADCs, DACs and readbacks. New data parameters added to SIS data stream by Tsukada-san. Update binary file format conversion executable. Set timing of new IP trigger provided by Terunuma-san. Installed new FONT5a board in the upstream FONT region. Updated FONT board firmware to generate synchronisation signal to pass to IP. Sunday, 23 February 2025 FONT 6

7. Upstream feedback Operated upstream feedback at low charge of 1x10^9. Stabilised beam to ~ 1um. Sunday, 23 February 2025 FONT 7

8. Synchronised feedback Operate the upstream FONT feedback and measure beam using IP BPMs simultaneously at high charge. Will need tuned beam and 2-bunch mode. Sunday, 23 February 2025 FONT 8