The Solar Probe ANalyzer—Ions on the Parker Solar Probe
The Solar Probe ANalyzer—Ions on the Parker Solar Probe
复制标题
太阳探测器分析仪——帕克太阳探测器上的离子
DOI：
10.3847/1538-4357/ac93f5
复制
发表时间：
2021
期刊：
影响因子：
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通讯作者：
Michael T. McManus
中科院分区：
文献类型：
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作者：
R. Livi;D. Larson;J. Kasper;R. Abiad;A. Case;K. Klein;D. Curtis;G. Dalton;M. Stevens;K. Korreck;G. Ho;M. Robinson;C. Tiu;P. Whittlesey;J. Verniero;J. Halekas;J. McFadden;M. Marckwordt;A. Slagle;Mamuda Abatcha;A. Rahmati;Michael T. McManus
NASA的帕克太阳探测器航天器上的太阳探测器离子分析仪（SPAN-I）是一种具有飞行时间能力的静电分析仪，可测量热日冕和太阳风等离子体的离子组成和三维分布函数。SPAN-1测量太阳风中离子的每电荷能量，从2 eV到30 keV，视场为247.°5 × 120°，同时将H+与He++分离，以开发单个离子种类的3D速度分布函数。这些观测结果，再加上由太阳指向太阳探测杯测量的简化分布函数，将有助于我们进一步了解太阳风的加速和形成，日冕的加热以及内日光层中粒子的加速。本文介绍了仪器硬件，包括几个创新的改进，以前的飞行时间传感器，实验产生的数据产品，和地面校准的传感器。
The Solar Probe ANalyzer for Ions (SPAN-I) onboard NASA’s Parker Solar Probe spacecraft is an electrostatic analyzer with time-of-flight capabilities that measures the ion composition and three-dimensional distribution function of the thermal corona and solar-wind plasma. SPAN-I measures the energy per charge of ions in the solar wind from 2 eV to 30 keV with a field of view of 247.°5 × 120° while simultaneously separating H+ from He++ to develop 3D velocity distribution functions of individual ion species. These observations, combined with reduced distribution functions measured by the Sun-pointed Solar Probe Cup, will help us further our understanding of the solar-wind acceleration and formation, the heating of the corona, and the acceleration of particles in the inner heliosphere. This paper describes the instrument hardware, including several innovative improvements over previous time-of-flight sensors, the data products generated by the experiment, and the ground calibrations of the sensor.