Ad-hoc%20D-to-A%20BPM%20readout

1
Ad-hoc D-to-A BPM readout

• Instrumented 12 BPMs for oscilloscope readout
  D6Q11, T8Q1, T8Q2, T8Q3, T8Q4, T8Q5, T8Q6, T8Q7,
  A1Q4, A1Q5, A1Q8, A1Q9

2
TQ7, DQ611, as beam goes by, zoomed out slow
septum pickup, fast kicker pickup, beam signal
3
Zoom in on beam signal (DQ801,2)
4
Mix out the magnitude of 53MHz component vs time
(us)
TQ1
TQ2
D6Q11
5
Magnitude of 53MHz vs time (us) when no beam is
present. Looks like cross talk from kicker
firing. DEKIK or AIKIK?
6
Avg of 3 beam pulses minus avg of 14 no-beam BG
corrected with measured cable attenuations