Fig. 9
From: Low-energy spin-physics experiments with polarized beams and targets at the COSY storage ring
Left: Fast Current Transformer from Bergoz Instrumentation installed at COSY. The FCT in the ring is equipped with a custom build preamplifier and a current source for calibration. Right: The test station for the beam current measurement devices. Different beam current sensors can be implemented into the test stand. The wire inside the tube is moved using XY tables (blue) mounted on both sides of the system. The wire tension system is covered inside the tapers (copper colored)