Response in electrostatic analyzers due to backscattered electrons: Case study analysis with the Juno Jovian Auroral Distribution Experiment-Electron instrument

G. Clark, F. Allegrini, B. M. Randol, D. J. McComas, P. Louarn

Research output: Contribution to journalArticle

2 Scopus citations

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.

Original languageEnglish (US)
Article number105109
JournalReview of Scientific Instruments
Volume84
Issue number10
DOIs
StatePublished - Oct 1 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Instrumentation

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