title: Response in electrostatic analyzers due to backscattered electrons: case study analysis with the Juno Jovian Auroral Distribution Experiment-Electron instrument.
abstract: In this study, we introduce a model to characterize electron scattering in an electrostatic analyzer. We show that electrons between 0.5 and 30 keV scatter from internal surfaces to produce a response up to ~20% of the ideal, unscattered response. We compare our model results to laboratory data from the Jovian Auroral Distribution Experiment-Electron sensor onboard the NASA Juno mission. Our model reproduces the measured energy-angle response of the instrument well. Understanding and quantifying this scattering process is beneficial to the analysis of scientific data as well as future instrument optimization.
authors.affiliation: Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, Texas 78249, USA.
authors.forename: G
authors.initials: G
authors.lastname: Clark
authors.forename: F
authors.initials: F
authors.lastname: Allegrini
authors.forename: B M
authors.initials: BM
authors.lastname: Randol
authors.forename: D J
authors.initials: DJ
authors.lastname: McComas
authors.forename: P
authors.initials: P
authors.lastname: Louarn