用于绘制伽利略卫星木卫二成分图的表面尘埃分析仪。

IF 9.1 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Space Science Reviews Pub Date : 2025-01-01 Epub Date: 2025-01-29 DOI:10.1007/s11214-025-01134-0
Sascha Kempf, Scott Tucker, Nicolas Altobelli, Christelle Briois, Morgan L Cable, Eberhard Grün, Murthy S Gudipati, Bryana L Henderson, Hsian-Wen Hsu, Kevin Hand, Mihaly Horanyi, Frank Postberg, Jürgen Schmidt, Ralf Srama, Zoltan Sternovsky, Gabriel Tobie, Mikhail Y Zolotov, Chris Belting, Susan Bortfeldt, Jordy Bouwman, Nat Brennan, Karen Bryant, Timothy Cassidy, David Crotser, Alexandra Curtin, Elz DeVito, Donrich Ebuen, Nat Faber, Melanie Fisher, John Fontanese, Maxwell Fowle, Wendy Frank, Scott Gurst, Sally Haselschwardt, Vaughn Hoxie, Karl Hubbell, David James, Mark Kien, Scott Knappmiller, Rick Kohnert, Alexander Lampe, Mark Lankton, Sean Lev-Tov, Crystal McGinn, Marc Miller, Gregory Newcomb, Samuel Oberg, Leela O'Brien, Kathrine Pilewskie, Shawn Polson, Victoria Scarffe-Barrett, David Summers, Stacy Wade, Alexandria Ware, Alan Yehle, Corinne Wuerthner, Adrian Garcia Arteaga, Bogdan Oaida, Chad Eberl, Polly Fitton, William Goode, Zuni Levin, Gwyneth Lowry, Jared Stanley, Anthony Tracy, Zach Ulibarri, Ethan Williams, Camille Yoke, Ben S Southworth, Jonathan K Hillier, Nozair Khawaja, Fabian Klenner, Maryse Napoleoni, Jonas Simolka, Jason Sioeng
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引用次数: 0

摘要

表面尘埃分析仪(SUDA)是木卫二快船任务上的质谱仪,用于调查伽利略卫星木卫二的表面成分。没有大气层的行星卫星,如伽利略卫星,被包裹在弹道尘埃外逸层中,由快速微流星体撞击月球表面产生的微小样本组成。SUDA将在近距离飞掠木卫二期间测量这些表面喷出物的组成,以获得揭示卫星组成的关键化学特征,如有机分子和盐、历史和地质演化。由于它们的弹道轨道,探测到的抛射物可以追溯到表面,其空间分辨率大致等于航天器的瞬时高度。SUDA是一种飞行时间(TOF),反射型撞击质谱仪,优化为高质量分辨率,仅弱依赖于撞击位置。该仪器将测量撞击颗粒的质量、速度、电荷、元素、分子和同位素组成。该仪器的268 mm × 250 mm × 171 mm的小尺寸、抗辐射设计和220 cm2的相当大的敏感面积很好地匹配了克利伯任务的挑战性要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SUDA: A SUrface Dust Analyser for Compositional Mapping of the Galilean Moon Europa.

The Surface Dust Analyser (SUDA) is a mass spectrometer onboard the Europa Clipper mission for investigating the surface composition of the Galilean moon Europa. Atmosphereless planetary moons such as the Galilean satellites are wrapped into a ballistic dust exosphere populated by tiny samples from the moon's surface produced by impacts of fast micrometeoroids. SUDA will measure the composition of such surface ejecta during close flybys of Europa to obtain key chemical signatures for revealing the satellite's composition such as organic molecules and salts, history, and geological evolution. Because of their ballistic orbits, detected ejecta can be traced back to the surface with a spatial resolution roughly equal to the instantaneous altitude of the spacecraft. SUDA is a Time-Of-Flight (TOF), reflectron-type impact mass spectrometer, optimized for a high mass resolution which only weakly depends on the impact location. The instrument will measure the mass, speed, charge, elemental, molecular, and isotopic composition of impacting grains. The instrument's small size of 268 mm × 250 mm × 171 mm , radiation-hard design, and rather large sensitive area of 220 cm2 matches well the challenging demands of the Clipper mission.

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来源期刊
Space Science Reviews
Space Science Reviews 地学天文-天文与天体物理
CiteScore
19.70
自引率
3.90%
发文量
60
审稿时长
4-8 weeks
期刊介绍: Space Science Reviews (SSRv) stands as an international journal dedicated to scientific space research, offering a contemporary synthesis across various branches of space exploration. Emphasizing scientific outcomes and instruments, SSRv spans astrophysics, physics of planetary systems, solar physics, and the physics of magnetospheres & interplanetary matter. Beyond Topical Collections and invited Review Articles, Space Science Reviews welcomes unsolicited Review Articles and Special Communications. The latter encompass papers related to a prior topical volume/collection, report-type papers, or timely contributions addressing a robust combination of space science and technology. These papers succinctly summarize both the science and technology aspects of instruments or missions in a single publication.
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