Speaker
Mr
Peter Novotny
(CERN)
Summary
Knowledge of the ground motion and its propagation through the PACMAN bench is very important when the position of the beam is measured with nanometre resolution. Therefore, we need a very sensitive seismometer which would be able to measure this motion in whole bandwidth of interest and which will also meet all the other PACMAN requirement like magnetic fields resistance, very low self-noise, compact size and light weight. Of course, very sensitive sensors are already available on the market but none of them meets all the requirements. I will present an overview of these state of the art seismic sensors, compare their advantages and disadvantages from PACMAN point of view and discuss possible modification or improvements.
