Improvements in strain calibration for the third LIGO science run

Details Improvements in strain calibration for the third LIGO science run Improvements in strain calibration for the third LIGO science run

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cqgra..22s.985l&link_type=abstract

Classical and Quantum Gravity, Volume 22, Issue 18, pp. S985-S994 (2005).

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Scientific paper

Amplitude calibration procedures have been developed by the LIGO Scientific Collaboration (LSC) for use in determining the strain sensitivity of the three LIGO interferometers. These frequency-domain procedures rely on a fiducial calibration taken at a reference time t0. The calibration is then propagated to all other times during the science run via calibration factors (denoted by α and β), which are derived from sinusoidal length excitations in interferometer cavity lengths. We briefly review the standard calibration methods that were employed in the first two LIGO science runs (S1 and S2), and then describe improvements in calibration procedures implemented during the third science run S3.
This paper was presented in the 9th Gravitational Wave Data Analysis Workshop, 15 18 December 2004, Annecy, France.

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