A Fast Beam Position Measurement System for CELSIUS

A new beam position measurement system has been constructed for CELSIUS in order to significantly increase the measurement speed of the original system, which is based on narrowband analog techniques. The new system is an adaptation of a data acquisition system [1] to beam position measurements. It uses direct digitization of pick-up signals with 14-bit resolution and sampling speeds up to 10 Msamples/s. The position information is extracted on a digital signal processor both with FFT and time domain techniques. Results from successful tests are presented.