The Hot-Ion Analyzer instrument for the ESA cluster mission

Summary This paper presents the IFSI-CNR activity for the CIS plasma experiment to be flow on the ESA Cluster four-spacecraft mission, see H. Reme (PI)et al., ESA/SP Report 88/1253, September 1988. IFSI contributes to the project by designing and producing part of the experiment,i.e. the sensor of the (0÷40) keV Hot-Ion Analyzer (HIA), its related digital processing unit and its software. This paper summarizes the instrument main features and describes the calibration facility for the first flight unit. Paper presented at the 6th Cosmic Physics National Conference, Palermo, 3–7 November 1992.