Conclusions

Cosmic ray effects present possible sources of noise for gravitational wave antennas at event rates which are significant for the successful operation of the detectors (a few per year). It is possible to construct veto systems which will respond to large particle densities in the vicinity of an antenna, either from muons, hadrons or extensive air showers. We have designed such a system, based on our previous Thebarton air shower array, which we expect to install shortly at the Perth gravitational wave observatory.

© Copyright Astronomical Society of Australia 1997