LIGO Document T0900450-v3

Sensor Noise Estimates for Advanced LIGO Seismic Isolation Systems

Document #:
LIGO-T0900450-v3
Document type:
T - Technical notes
Other Versions:
LIGO-T0900450-v5
03 Nov 2023, 11:39
LIGO-T0900450-v4
30 Jun 2023, 19:21
Abstract:
Describes the noise estimates, and a simple matlab function which contains them, for the SEI systems
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Notes and Changes:
The most recent version of the matlab files lives in the seismic SVN at
https://trac.ligo.caltech.edu/seismic/browser/Common/MatlabTools/SEI_sensor_noise.m

IMPORTANT: If you download the matlab files, please put yourself on the watchlist for this document, because I plan to update the matlab code at least once in version -v3.

V2 includes the GS-13 measured data plot, and some pretty good T240 data.

V3 just takes the T240meas down to 10 mHz (with a WAG)

This contains the noise for the sensors in the BSC-ISI, but is still missing the Kaman and the STS-2, and most of the frequency response data. The updated version will also live the seismic SVN. BTL, Sept 26, 2009

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