Relativistic Particle Measurements in Jupiter’s Magnetosphere with Pix.PAN

作者：J. Hulsman, X. Wu, P. Azzarello, B. Bergmann, M. Campbell, G. Clark, F. Cadoux, Tomoya Ilzawa, P. Kollmann, X. Llopart, Quentin Nénon, M. Paniccia, E. Roussos, Petr Smolyanskiy, D. Sukhonos, Pierre Thonet · 发表于：Research Square · 年份：2023 · DOI：10.21203/rs.3.rs-2743432/v1 · 被引用次数：2 · 研究领域：Dark Matter and Cosmic Phenomena、Photocathodes and Microchannel Plates、Atomic and Molecular Physics

Abstract Pix.PAN is a compact cylindrical magnetic spectrometer, intended to provide excellent high energy particle measurements under high rate and hostile operating conditions in space. Its principal design is composed of 2 Halbach-array magnetic sectors and 6 Timepix4-based tracking layers; the latest hybrid silicon pixel detector readout ASIC designed. Due to Pix.PAN's compact and relatively simple design, it has the potential to be used for space missions exploring with measurements of unprecedented precision, high energy particles in radiation belts and the heliophere (solar energetic particles, anomalous and galactic cosmic rays). In this white paper, we discuss the design and expected performance of Pix.PAN for COMPASS (Comprehensive Observations of Magnetospheric Particle Acceleration, Sources, and Sinks), a mission concept submitted to NASA’s Call "B.16 Heliophysics Mission Concept Studies (HMCS)" in 2021 that targets the extreme high energy particle environment of Jupiter's inner radiation belts. We also discuss PixPAN's operational conditions and interface requirements. The conceptual design shows that is possible to achieve an energy resolution of <12% for electrons in the range of 10MeV-1GeV and <35% for protons between ~200MeV to a few GeV. Due to the timestamp precision of Timepix4, a time resolution (on an instrument level) of about 100ps can be achieved for time-of-flight measurements. In the most intense radiation environments of the COMPASS mission, ...