Relativistic particle measurement in Jupiter’s magnetosphere with Pix.PAN

Article Article scientifique Article Relativistic particle measurement in Jupiter’s magnetosphere with Pix.PAN eng 2023-11-18 2023-11-18 author Hulsman Johannes 0000-0003-3052-5281 Geneva U. 939665 Département de physique nucléaire et corpusculaire (FINUC) author Wu Xin Geneva U. 27612 Département de physique nucléaire et corpusculaire (FINUC) author Azzarello Philipp Geneva U. 82390 Département de physique nucléaire et corpusculaire (FINUC) author Bergmann Benedikt CTU, Prague author Campbell Michael David CERN 422228 author Clark George Johns Hopkins U. author Cadoux Franck Geneva U. 676514 Département de physique nucléaire et corpusculaire (FINUC) author Ilzawa Tomoya Geneva U. author Kollmann Peter Johns Hopkins U. author Llopart Xavi CERN author Nénon Quentin CNES, Toulouse author Paniccia Mercedes 0000-0001-8482-2703 Geneva U. 561777 Département de physique nucléaire et corpusculaire (FINUC) author Roussos Elias Gottingen, Max Planck Inst. author Smolyanskiy Petr CTU, Prague author Sukhonos Daniil Geneva U. 963161 author Thonet Pierre Alexandre CERN 371-402 10.1007/s10686-023-09918-4 0922-6435 https://link.springer.com/10.1007/s10686-023-09918-4 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 two Halbach-array magnetic sectors and six 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 10 MeV-1 GeV and<35% for protons between ~200 MeV to a few GeV. Due to the timestamp precision of Timepix4, a time resolution (on an instrument level) of about 100 ps can be achieved for time-of-flight measurements. In the most intense radiation environments of the COMPASS mission, Pix.PAN is expected to have a maximum hit rate of 44 MHz/cm2 which is below the design limit of 360 MHz/cm2 of Timepix4. Finally, a sensor design is proposed which allows the instrument to operate with a power budget of 20W without the loss of scientific performance. Pix.PAN Timepix4 Radiation Radiation belt Cosmic rays Dewey 500.2 34 Département de physique nucléaire et corpusculaire 132 false Experimental astronomy 56 2-3 100b5308-08dc-42c7-9e59-b6998e6302a4 Article (Published version) Public Article_scientifique_from_unpaywall.pdf 3639664 application/pdf CC BY-4.0 c2813f964a7ad4479447339d211e13ecd78bcda8ccc1874133e22a88aed12d92 openAccess Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Title	Published in	Access level	OA Policy	Year	Views	Downloads

Relativistic particle measurement in Jupiter’s magnetosphere with Pix.PAN	Experimental astronomy			2023	59	56

Archive ouverte UNIGE

Campbell, Michael David