In designs for advanced detectors, the pendulums where the mirrors hang have multiple stages with both horizontal and vertical soft ... For the LIGO detectors now in construction, answers are (t) 0.5 mrad rms and (ii)10~8 rad rms, and contributions less than 5% of shot noise 2. ... The identified sources of angular noise are straight seismic excitation (depends on pendulum mechanics); seismic excitationanbsp;...
|Title||:||Proceedings of the Ninth Marcel Grossmann Meeting on General Relativity|
|Author||:||Robert T. Jantzen, Remo Ruffini, V. G. Gurzadyan|
|Publisher||:||World Scientific - 2002-01-01|