Fig. 13From: An in-flight plasma diagnostic package for spacecraft with electric propulsionThe calibration of the RPA is done by means of Faraday cup measurements. (a) RPA measurements and (b) corresponding Faraday cup measurements. The Imax,jmax and σ values refer to the maxima and standard deviations of the Gaussian fits (dashed black curves) to the black curves, respectivelyBack to article page