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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >The Pickup Ion Composition Spectrometer
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The Pickup Ion Composition Spectrometer

机译：皮卡离子成分光谱仪

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Observations of newly ionized atoms that are picked up by the magnetic field in the expanding solar wind contain crucial information about the gas or dust compositions of their origins. The pickup ions (PUIs) are collected by plasma mass spectrometers and analyzed for their density, composition, and velocity distribution. In addition to measurements of PUIs from planetary sources, in situ measurements of interstellar gas have been made possible by spectrometers capable of differentiating between heavy ions of solar and interstellar origin.While important research has been done on these often singly charged ions, the instruments that have detected many of them were designed for the energy range and ionic charge states of the solar wind and energized particle populations, and not for pickup ions. An instrument optimized for the complete energy and time-of-flight characterization of pickup ions will unlock a wealth of data on these hitherto unobserved or unresolved PUI species. The Pickup Ion Composition Spectrometer (PICSpec) is one such instrument and can enable the next generation of pickup ion and isotopic mass composition measurements. By combining a large-gap time-of-flight–energy sensor with a -100 kV high-voltage power supply for ion acceleration, PUIs will not only be above the detection threshold of traditional solid-state energy detectors but also be resolved sufficiently in time of flight that isotopic composition can be determined. This technology will lead to a new generation of space composition instruments, optimized for measurements of both heliospheric and planetary pickup ions.
机译：观测的新原子电离被扩大的磁场太阳风包含重要的信息气体或尘埃组成的起源。收集的皮卡离子(结果)是等离子体质量光谱仪和分析他们的密度,成分和速度分布。从行星之外的测量结果星际气体的来源,原位测量已经通过光谱仪可以吗区分重离子的太阳能和星际起源。对这些通常单电荷离子,发现很多的乐器设计范围和离子的能量负责太阳风和活力粒子的数量,而不是小离子。优化了完整的能源和工具飞行时间表征的皮卡离子这些迄今为止将开启一个丰富的数据未被注意的或未解决的物种。离子成分光谱仪(PICSpec)就是其中之一这样的仪器,可以使下一个代的小型离子和同位素质量组合测量。巨大的差距time-of-flight-energy传感器和一个-100千伏高压电源的离子加速度,然后将不仅仅是以上检测阈值的传统固态能量探测器也得到解决足够的同位素的飞行时间作文可以确定。将导致新一代的空间组合工具优化测量两日球和行星皮卡离子。

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