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Old Web PAge Below
http://www.ligo.caltech.edu/LIGO_web/icons/ligo_logo.gif BR
Laser Interferometer Gravitational-Wave Observatory
STACIS seismic isolation at LIGO's 40 meter prototype Laboratory
TMC STACIS 2000 web site and Technical Background (pdf)BRhttp://www.ligo.caltech.edu/~ajw/stacis2000.jpg http://www.ligo.caltech.edu/~ajw/stacis_block.gif
Between 11/27-12/6/00, Stave Vass and Larry Jones mounted the STACIS seismic isolation systems on the four 40m test mass chambers.BRhttp://www.ligo.caltech.edu/~ajw/stacisinst1.jpg http://www.ligo.caltech.edu/~ajw/stacisinst2.jpg
Preliminary results, in Postscript and pdf.
We are limited by our ability to measure motion below a few Hz and above some 10's of Hz, by our geophones. More about geophones: [[http://www.treefort.org/~ghost/geo.shtml| GEOPHONE FAQ[[|, Geophone research at Stanford, Geophones from i-o.com.
URL: http://www.ligo.caltech.edu/~ajw/40m_stacis.html BR Questions? Contact Alan Weinstein. ]]]]