Thread by @LIGOWA

This week FC1 (Filter Cavity [mirror] #1) was installed in the @LIGOWA's new HAM7 vacuum chamber for the new @LIGO A+ Filter Cavity.
FC1 is a triple suspension mirror. This work was also installed in @LIGOWA's NEW "Mega Cleanroom"!
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#GravitationalWaves #LIGO @NSF #NSF

Here the HAM7 #vacuum chamber is partially opened up. The FC1 suspension is shyly hiding inside it's protective cover as TJ (Lead Operator), Travis Sadecki (Operations Specialist), & Rahul Kumar (Suspension [SUS] Detector Engineer) prepare for installation.
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#LIGO

FC1 Uncovered!
This @LIGO Triple Suspension currently has a "dummy weight" suspended at the bottom, this "dummy" will be replaced with its mirror next! TJ is in this photo.
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Getting ready to lift FC1 with a Lift (blue thing controlled by Travis) & take a peak inside HAM7 and also "The Arm" which will take FC1 and put it in its final location.
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#GravitationalWaves #APlus #LIGO

Lifting FC1 & transferring to The Arm!
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#LIGO #GravitationalWaves #Installation #physics #engineering #Cleanroom

Time-lapse of maneuvering FC1 for install (also paparazzi!) ;)
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#timelapse #GravitationalWaves

The Arm taking FC1.
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#LIGOVirgoKAGRA #LIGOVirgo #GravitationalWaves #LIGO

Travis & Rahul attaching a spacer underneath FC1 to put it at the correct elevation when it is installed on the optics table.
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#LIGOVirgoKAGRA #LIGOVirgo #GravitationalWaves #LIGO #APlus #LIGOAPlus

FC1 held by "The Arm" and ready to be guided inside the HAM chamber and put in its final position.
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#LIGOVirgoKAGRA #LIGOVirgo #GravitationalWaves #LIGO

FC1 Installed! And TJ making final checks.
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#LIGOVirgoKAGRA #LIGOVirgo #GravitationalWaves #LIGO