新视野号上的冥王星太阳风（SWAP）仪器
The Solar Wind Around Pluto (SWAP) Instrument Aboard New Horizons
摘要：
新视野号上的“冥王星周围的太阳风”（SWAP）仪器将测量太阳风与冥王星大气损失产生的离子之间的相互作用。这些测量提供了总损失率的表征，并使我们能够首次研究冥王星复杂的等离子体相互作用。由于受到最小资源的限制，SWAP经过优化，可以在所有旋转角度进行等离子体离子测量，因为新视野号航天器在飞越期间扫描冥王星和Charon。为了满足这些独特的要求，我们结合了圆柱对称减速电位分析仪（RPA）与小偏转器，顶帽分析仪，和冗余/符合检测方案。这种配置允许在航天器的所有扫描角度进行高度灵敏的测量和可控的能量通带。
英文摘要：
The Solar Wind Around Pluto (SWAP) instrument on New Horizons will measure the interaction between the solar wind and ions created by atmospheric loss from Pluto. These measurements provide a characterization of the total loss rate and allow us to examine the complex plasma interactions at Pluto for the first time. Constrained to fit within minimal resources, SWAP is optimized to make plasma-ion measurements at all rotation angles as the New Horizons spacecraft scans to image Pluto and Charon during the flyby. In order to meet these unique requirements, we combined a cylindrically symmetric retarding potential analyzer (RPA) with small deflectors, a top-hat analyzer, and a redundant/coincidence detection scheme. This configuration allows for highly sensitive measurements and a controllable energy passband at all scan angles of the spacecraft.
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