2023-03-13

FAB turn-by-turn signal integrals during debunching and rebunching on Friday March 10th.

Comparision of signal integrals on March 10th and March 13th during debunching.

March 10th FAB heatmap in time window coving phi_s sweep, flat-top and debunching

March 13th FAB heatmap in time window coving phi_s sweep, flat-top and debunching

Apply notch filter at 15.5 MHz to remove h=6 component.

FAB heatmap after applying filter at 15.5 MHz

FAB data for individual turns in 1000 turn window around t=0 with no filter

FAB data for individual turns in 1000 turn window around t=0 with 15.5 MHz filter

FAB turn-by-turn signal integrals during debunching and rebunching on Friday March 10th.

The rebunching and debunching data are shown side-by-side. In fact they are separated by a 750ms period during which the RF is off. There is a period with phi_s = 0 starting at about t=0s.

Comparision of signal integrals on March 10th and March 13th during debunching.

Comparing the signal integral during flattop (t=0s), the integral on March 13th is around 50% of the March 10th data. Note: data clipped in the range +/- 0.1V for the March 13th data.

March 10th FAB heatmap in time window coving phi_s sweep, flat-top and debunching

File index 24

March 13th FAB heatmap in time window coving phi_s sweep, flat-top and debunching

File index 62

Note: data clipped in the range +/- 0.1V

Apply notch filter at 15.5 MHz to remove h=6 component.

File index 24, March 10th

FAB heatmap after applying filter at 15.5 MHz

File index, March 10th

FAB data for individual turns in 1000 turn window around t=0 with no filter

Plot shows FAB signal subtracted from its maximum for each turn.

FAB data for individual turns in 1000 turn window around t=0 with 15.5 MHz filter

Plot shows FAB signal subtracted from its maximum for each turn.

3/10: 35MeV w/2ms flattop 750ms coast then accel to 140MeV

#24: BEAM ON, delay 10ms (flattop region), 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

#61: BEAM OFF, delay 10ms (flattop region), 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

3/10 ( right): 35MeV w/2ms flattop 750ms coast then accel to 140MeV

#25: BEAM ON, delay 27ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

#64: BEAM OFF, delay 27ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

3/13(left): 35MeV w/2ms flattop 753ms coast then accel to 140MeV

#128: BEAM ON, delay 27ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

#140: BEAM OFF, delay 27ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

3/10: right 35MeV w/2ms flattop 750ms coast then accel to 140MeV

#37: BEAM ON, delay 47ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#67: BEAM OFF, delay 47ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

3/13:left

#131:BEAM ON, delay 47ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

#143:BEAM OFF, delay 47ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

3/10(right): 35 MeV w/2ms flattop 750ms coast then accel to 140MeV

#40: BEAM ON, delay 77ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#70: BEAM OFF, delay 77ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

3/13(left)

#134:BEAM ON, delay 77ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

#146:BEAM OFF, delay 77ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

3/10(right):35MeV w/2ms flattop 750ms coast then accel to 140MeV

#43: BEAM ON, delay 177ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#73: BEAM OFF, delay 177ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

3/13(left)

#137:BEAM ON, delay 177ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

#149:BEAM OFF, delay 177ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 150MHz low pass filter

Only 3/10 data

35MeV w/2ms flattop 750ms coast then accel to 140MeV

#46: BEAM ON, delay 277ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#76: BEAM OFF, delay 277ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

Only 3/10 data:

35MeV w/2ms flattop 750ms coast then accel to 140MeV

#49: BEAM ON, delay 377ms, 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#79: BEAM OFF, delay 377ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

Only 3/10 data:

35MeV w/2ms flattop 750ms coast then accel to 140MeV

#52: BEAM ON, delay 477ms , 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#82: BEAM OFF, delay 477ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

Only 3/10 data:35MeV w/2ms flattop 750ms coast then accel to 140MeV

#55: BEAM ON, delay 577ms , 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#85:BEAM OFF, delay 577ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

Only 3/10 data: 35MeV w/2ms flattop 750ms coast then accel to 140MeV

#58:BEAM ON, delay 677ms , 800ps/pt, 20mV/div, 20MS/s AWG clock, 80MHz low pass filter

#88:

BEAM OFF, delay 677ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

#24:BEAM ON, delay 10ms (flattop region), 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

#26:BEAM ON, delay 780ms, 800ps/pt, 200mV/div, 20MS/s AWG clock, 80MHz low pass filter

There is no data of BEAM OFF when delay at 780ms. Therefore, the revolution frequency on FAB during rebunching period would be just RF noise.

1. When delay is longer than 177ms, the schottky signal (?) is shifted to lower frequency(why).

2. From 10th data, schottoky signal (?) can be seen when the delay was 677ms, but not clear due to S/N.

3. When delay is over than 47 - 77ms, double peaks becomes single broad distribution. This is clearly different from the signal where beam was absent.

4. Data on 13th, h=6 signal is smaller than the one on 10th.

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