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Reports until 15:02, Monday 18 March 2024
H1 SQZ (SQZ)
julian.gurs@LIGO.ORG - posted 15:02, Monday 18 March 2024 (76486)
New bandstop filters in the squeezed BLRMS for ADF frequencies at 105 Hz and 322 Hz

Sheila and Julian,

have added two new bandstop filters in the squeezed BLRMS for ADF frequencies.

Now we have three: 105 Hz, 322 Hz and 1.3 kHz.

 

105 Hz is in channel 1 and 2 of sum and null: ellip("BandStop",4,1,40,104,106).

322 Hz is in channel 3 of sum and null: ellip("BandStop",4,1,40,321,323).

1.5 kHz is in channel 4 of sum and null.

 

The purpose of that is the optimization of squeezing for lower frequencies.

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