Design of a system of electrostatic probes for the RF negative ion source of the SPIDER experiment

摘要

A test facility (SPIDER) is planned to be built in Padova, Italy, in order to test and optimize the RF source of negative ions to be used in the ITER neutral beam injectors. In this paper the Langmuir probe system designed for monitoring the region, where most of the negative ions are expected to be produced, will be presented.