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LIGO Hanford Video Clips

Follow the progress of Advanced LIGO at the Hanford Observatory through the YouTube clips linked below. Some of the clips contain only video. Others carry the original audio, a voiceover or both. Are you interested in still images? You can find collections of stills on LIGO Hanford's Photo Gallery pages.

Removal of HAM 9 Vibration Isolation Stack

December, 2010

LIGO personnel remove a 3300-lb optical table and passive vibration isolation stack from a Horizontal Access Module (HAM). The mirror and other optical table contents had been removed previously. The stack support table, resting on support tubes, will remain in the chamber for the time being to facilitate the installation of HAM 9's hydraulic external pre-isolator (HEPI). A servo-controlled Internal Seismic Isolator will eventually land inside the chamber in place of the passive stack.

LIGO Hanford Video Clip Archive

•	Quad Suspension Takedown, 4/2011	•	BSC 7 Stack Removal, 1/2011	•	HAM 9 Stack Removal, 12/2010
•	BSC 6 Stack Removal, 11/2010	•	Quad Assembly, 10/2010

•Last modified Jan 21, 2011
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LIGO is supported by the National Science Foundation. Any opinions, findings, conclusions or recommendations expressed here are those of the author(s) and do not necessarily reflect the views of the National Science Foundation