Electromagnetic transducers close to high-temperature plasma in the thermonuclear fusion experiment RFX

RFX is a magnetically confined fusion experiment in operation since 1992 in Padova, Italy, Analysis of the magnetic field is essential for the safe op eration of the machine and the understanding of high-temperature plasma dyn amics. Both of these issues require an accurate electromagnetic diagnostic system. In this paper, after a discussion of the problems related to magnetic measu rements in fusion experiments, with particular reference to the RFX environ ment, the probes recently installed inside the vacuum vessel will be descri bed.