Displaying report 1-1 of 1.
Reports until 15:06, Monday 17 June 2024
H1 ISC
thomas.shaffer@LIGO.ORG - posted 15:06, Monday 17 June 2024 (78495)
Ran A2L a few times in a row and swapped quad frequencies

Further testing on the revised A2L script today. On Friday Sheila added a settling time between steps that seemed to help (alog78438), and had increased the run time of the script to just under 7 minutes. Today we wanted try two things: i.) run it a few times in succession to see if we get the same results  ii.) swap the furthest quad frequencies and see if we get the same results. This was only for Y and was right after we relocked and were still thermalizing.

  ETMX ETMY ITMX ITMY
    Run #1  (Line Frequencies) 31.5 Hz 28.5 Hz 26.5 Hz 23.5 Hz

Initial

4.91 1.0 2.85 -2.45
Final 4.92 0.97 2.86 -2.45
Difference 0.01 0.03 0.01 0.0
         
    Run #2  (Line Frequencies) 23.5 Hz     31.5 Hz
Final 4.93 1.04 2.83 -2.44
Difference

0.01

0.07 0.03 0.01
         
    Run #3  (Line Frequencies) 23.5 Hz     31.5 Hz
Final 4.89 1.06 2.80 -2.41
Difference 0.04 0.02 0.03 0.03

 

Swapping the line frequencies didn't seem to change much, rather the quads that kept their frequencies changed more. This might hint that we are drifting at the frequencies that A2L should help with, so we will get different answers each time we run it. We only ran it 3 times and while we were still thermalizing, so perhaps we need to run it again after thermalized and see if we still get the same answers.

Displaying report 1-1 of 1.