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Importance of energy and angular resolutions in top-hat electrostatic analysers for solar wind proton measurements

Abstract : We use a numerical code which reproduces the angular/energy response of a typical top-hat electrostatic analyser starting from solar wind proton velocity distribution functions (VDFs) generated by numerical simulations. The simulations are based on the Hybrid Vlasov-Maxwell numerical algorithm which integrates the Vlasov equation for the ion distribution function, while the electrons are treated as a fluid. A virtual satellite launched through the simulation box measures the particle VDFs. Such VDFs are moved from the simulation Cartesian grid to energy-angular coordinates to mimic the response of a real sensor in the solar wind. Different energy-angular resolutions of the analyser are investigated in order to understand the influence of the phase-space resolution in existing and upcoming space missions, with regards to determining the key parameters of plasma dynamics.
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Submitted on : Monday, May 23, 2022 - 10:23:39 AM
Last modification on : Monday, July 4, 2022 - 9:34:34 AM

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R. de Marco, M. F. Marcucci, R. Bruno, R. d'Amicis, S. Servidio, et al.. Importance of energy and angular resolutions in top-hat electrostatic analysers for solar wind proton measurements. Journal of Instrumentation, 2016, 11, pp.C08010. ⟨10.1088/1748-0221/11/08/C08010⟩. ⟨insu-03675405⟩

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