Design and development of the HERMES Pathfinder payloads
HERMES (High Energy Rapid Modular Ensemble of Satellites) Pathfinder mission aims to observe and localize Gamma Ray Bursts (GRBs) and other transients using a constellation of nanosatellites in low-Earth orbit (LEO). Scheduled for launch in early 2025, the 3U CubeSats will host miniaturized instrume...
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creator | Campana, R Evangelista, Y Fiore, F Guzman, A Baroni, G G Della Casa Dilillo, G Hedderman, P Marchesini, E J Bertuccio, G Ceraudo, F Demenev, E Fiorini, M Grassi, M Malcovati, P Mele, F Nogara, P Nuti, A Perri, M Pirrotta, S Pliego-Caballero, S Puccetti, S Sottile, G Russo, F Trevisan, S |
description | HERMES (High Energy Rapid Modular Ensemble of Satellites) Pathfinder mission aims to observe and localize Gamma Ray Bursts (GRBs) and other transients using a constellation of nanosatellites in low-Earth orbit (LEO). Scheduled for launch in early 2025, the 3U CubeSats will host miniaturized instruments featuring a hybrid Silicon Drift Detector (SDD) and GAGG:Ce scintillator photodetector system, sensitive to X-rays and gamma-rays across a wide energy range. Each HERMES payload contains 120 SDD cells, each with a sensitive area of 45 mm^2, organized into 12 matrices, reading out 60 12.1x6.94x15.0 mm^3 GAGG:Ce scintillators. Photons interacting with an SDD are identified as X-ray events (2-60 keV), while photons in the 20-2000 keV range absorbed by the crystals produce scintillation light, which is read by two SDDs, allowing event discrimination. The detector system, including front-end and back-end electronics, a power supply unit, a chip-scale atomic clock, and a payload data handling unit, fits within a 10x10x10 cm^3 volume, weighs 1.5 kg, and has a maximum power consumption of about 2 W. This paper outlines the development of the HERMES constellation, the design and selection of the payload detectors, and laboratory testing, presenting the results of detector calibrations and environmental tests to provide a comprehensive status update of the mission. |
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Scheduled for launch in early 2025, the 3U CubeSats will host miniaturized instruments featuring a hybrid Silicon Drift Detector (SDD) and GAGG:Ce scintillator photodetector system, sensitive to X-rays and gamma-rays across a wide energy range. Each HERMES payload contains 120 SDD cells, each with a sensitive area of 45 mm^2, organized into 12 matrices, reading out 60 12.1x6.94x15.0 mm^3 GAGG:Ce scintillators. Photons interacting with an SDD are identified as X-ray events (2-60 keV), while photons in the 20-2000 keV range absorbed by the crystals produce scintillation light, which is read by two SDDs, allowing event discrimination. The detector system, including front-end and back-end electronics, a power supply unit, a chip-scale atomic clock, and a payload data handling unit, fits within a 10x10x10 cm^3 volume, weighs 1.5 kg, and has a maximum power consumption of about 2 W. This paper outlines the development of the HERMES constellation, the design and selection of the payload detectors, and laboratory testing, presenting the results of detector calibrations and environmental tests to provide a comprehensive status update of the mission.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2409.15078</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Astronomical instruments ; Atomic clocks ; Atomic properties ; Cubesat ; Environmental testing ; Gamma ray bursts ; Low earth orbits ; Maximum power ; Modular equipment ; Nanosatellites ; Payloads ; Photons ; Physics - High Energy Astrophysical Phenomena ; Physics - Instrumentation and Methods for Astrophysics ; Satellite constellations ; Satellite observation ; Scintillation counters ; Sensors</subject><ispartof>arXiv.org, 2024-09</ispartof><rights>2024. 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Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,782,786,887,27932</link.rule.ids><backlink>$$Uhttps://doi.org/10.48550/arXiv.2409.15078$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1117/12.3018007$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Campana, R</creatorcontrib><creatorcontrib>Evangelista, Y</creatorcontrib><creatorcontrib>Fiore, F</creatorcontrib><creatorcontrib>Guzman, A</creatorcontrib><creatorcontrib>Baroni, G</creatorcontrib><creatorcontrib>G Della Casa</creatorcontrib><creatorcontrib>Dilillo, G</creatorcontrib><creatorcontrib>Hedderman, P</creatorcontrib><creatorcontrib>Marchesini, E J</creatorcontrib><creatorcontrib>Bertuccio, G</creatorcontrib><creatorcontrib>Ceraudo, F</creatorcontrib><creatorcontrib>Demenev, E</creatorcontrib><creatorcontrib>Fiorini, M</creatorcontrib><creatorcontrib>Grassi, M</creatorcontrib><creatorcontrib>Malcovati, P</creatorcontrib><creatorcontrib>Mele, F</creatorcontrib><creatorcontrib>Nogara, P</creatorcontrib><creatorcontrib>Nuti, A</creatorcontrib><creatorcontrib>Perri, M</creatorcontrib><creatorcontrib>Pirrotta, S</creatorcontrib><creatorcontrib>Pliego-Caballero, S</creatorcontrib><creatorcontrib>Puccetti, S</creatorcontrib><creatorcontrib>Sottile, G</creatorcontrib><creatorcontrib>Russo, F</creatorcontrib><creatorcontrib>Trevisan, S</creatorcontrib><title>Design and development of the HERMES Pathfinder payloads</title><title>arXiv.org</title><description>HERMES (High Energy Rapid Modular Ensemble of Satellites) Pathfinder mission aims to observe and localize Gamma Ray Bursts (GRBs) and other transients using a constellation of nanosatellites in low-Earth orbit (LEO). Scheduled for launch in early 2025, the 3U CubeSats will host miniaturized instruments featuring a hybrid Silicon Drift Detector (SDD) and GAGG:Ce scintillator photodetector system, sensitive to X-rays and gamma-rays across a wide energy range. Each HERMES payload contains 120 SDD cells, each with a sensitive area of 45 mm^2, organized into 12 matrices, reading out 60 12.1x6.94x15.0 mm^3 GAGG:Ce scintillators. Photons interacting with an SDD are identified as X-ray events (2-60 keV), while photons in the 20-2000 keV range absorbed by the crystals produce scintillation light, which is read by two SDDs, allowing event discrimination. The detector system, including front-end and back-end electronics, a power supply unit, a chip-scale atomic clock, and a payload data handling unit, fits within a 10x10x10 cm^3 volume, weighs 1.5 kg, and has a maximum power consumption of about 2 W. 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Scheduled for launch in early 2025, the 3U CubeSats will host miniaturized instruments featuring a hybrid Silicon Drift Detector (SDD) and GAGG:Ce scintillator photodetector system, sensitive to X-rays and gamma-rays across a wide energy range. Each HERMES payload contains 120 SDD cells, each with a sensitive area of 45 mm^2, organized into 12 matrices, reading out 60 12.1x6.94x15.0 mm^3 GAGG:Ce scintillators. Photons interacting with an SDD are identified as X-ray events (2-60 keV), while photons in the 20-2000 keV range absorbed by the crystals produce scintillation light, which is read by two SDDs, allowing event discrimination. The detector system, including front-end and back-end electronics, a power supply unit, a chip-scale atomic clock, and a payload data handling unit, fits within a 10x10x10 cm^3 volume, weighs 1.5 kg, and has a maximum power consumption of about 2 W. This paper outlines the development of the HERMES constellation, the design and selection of the payload detectors, and laboratory testing, presenting the results of detector calibrations and environmental tests to provide a comprehensive status update of the mission.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2409.15078</doi><oa>free_for_read</oa></addata></record> |
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subjects | Astronomical instruments Atomic clocks Atomic properties Cubesat Environmental testing Gamma ray bursts Low earth orbits Maximum power Modular equipment Nanosatellites Payloads Photons Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Satellite constellations Satellite observation Scintillation counters Sensors |
title | Design and development of the HERMES Pathfinder payloads |
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