EMC Issues and Signal Integrity Analysis of Neutron Diagnostics for Nuclear Fusion Machines

This paper studies the Electromagnetic Compatibility (EMC) compliance of a diagnostic system intended for the nuclear fusion reactor ITER. Specifically, a neutron detection chain is analyzed, where the electrical signals emitted by a diamond matrix hit by neutrons. A non-conventional design of such an electronic chain is requested, to meet the specific requirements within the particular constraints imposed for such an application. This results in specific EMC issue related to the effect of common mode noise on the signal integrity. The EMC analysis is carried out on a mock-up system, and solutions to face the above issues are designed, implemented and experimentally validated.