I S Heng et al 2002 Class. Quantum Grav. 19 1889 doi:10.1088/0264-9381/19/7/389
I S Heng1, E Daw1, J Giaime1, W O Hamilton1, M P Mchugh2 and W W Johnson1
Show affiliationsThe noise performance of Allegro since 1993 is summarized. We show that the noise level of Allegro is, in general, stationary. Non-Gaussian impulse excitations persist despite efforts to isolate the detector from environmental disturbances. Some excitations are caused by seismic activity and flux jumps in the SQUID. Algorithms to identify and automatically veto these events are presented. Also, the contribution of Allegro to collaborations with other resonant-mass detectors via the International Gravitational Event Collaboration and with LIGO is reviewed.
04.80.Nn Gravitational wave detectors and experiments
95.85.Sz Gravitational radiation, magnetic fields, and other observations
Issue 7 (7 April 2002)
Received 14 October 2001, in final form 14 November 2001
Published 18 March 2002
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