1. C and S band BPM system update A. Aryshev, S. T. Boogert, S. Molloy, C. Swinson 5/25/20151ATF2 Software meeting

2. Introduction System design and implementation Calibration progress Problems with phase stability and beam motion Results from calibration 5/25/20152ATF2 Software meeting

3. Mover calibration Bump calibration Calibration Performed many quad mover calibration Single bump to calibrate QD10 to QD21X S-band system not yet done (reference cavity still missing) – Will be magnet mover based 5/25/20153ATF2 Software meeting

4. Hardware installation Schematic hardware installation Photographs of Hardware installation 5/25/20154ATF2 Software meeting

5. Software installation 5/25/2015ATF2 Software meeting5

6. MREF1X MREF3FF MREF2FF MREF1FF Reference problems Typically the reference cavity is downstream of the BPMs – Problematic when doing mover based calibration – Not been such a problem recently but difficult when line is poorly steered – Only currently using one reference (MREF1X) 5/25/20156ATF2 Software meeting

7. Trigger/clock stability 5/25/20157ATF2 Software meeting

8. Mover calibration example 5/25/20158ATF2 Software meeting

9. Beam bump calibration example 5/25/20159ATF2 Software meeting

10. Future work S-band soon – Reference integration before April beam? Fix trigger/clock problems – Install beam arrival diode – RF locking system Code upgrades – Saturation – Tone calibration – Environment monitoring (temperature, LO, cal-tone) 5/25/201510ATF2 Software meeting