The collector ring (CR) of the FAIR project will include a fast stochastic cooling system for rare isotope beams ( β = 0.83) and antiprotons ( β = 0.97). To reach a good signal to noise ratio of the pick-up even with a low number of particles, a cryogenic movable pick-up electrode system based on slotlines is under development. The sensitivity and noise properties of an electrode array has been...
