Ultra low current measurement system for nuclear applications

This work is focused on the design of a measurement platform intended to be used for very low current measurements in a particle accelerator facility. The existing system of the accelerator allows the particle beam current measurement in microamperes range with a resolution of 100nA. The platform is attached to the accelerator existing system to quantify ultra low current values currents measurements, which extends the range up to values of the order of the picoampers. Certain aspects like the influence of the external low frequency noise and a proper electromagnetic shielding are considered to reduce the noise of the system.