We have developed a low-energy particle experiment that alternately measures ions and electrons in space. The ability to switch between ion and electron measurements is achieved by simply adding ultra-thin carbon foils and positive and negative outputs to a conventional top-hat electrostatic analyzer and a high-voltage power supply, respectively. The advantage of this experiment is that it can perform both ion and electron measurements using only one MCP-based detector for electrons, since it detects secondary electrons emitted from the carbon foils. For the SS520-3 sounding rocket program, we prepared two identical energy analyzers, one for ions and the other for electrons to demonstrate this technique. Laboratory tests confirmed that the performance of the two analyzers was comparable to that of conventional analyzers for ion and electrons. The SS520-3 rocket experiment in the high latitude auroral region yielded observations that captured typical features of ions and electrons, which were similar to previous observations.

Graphical Abstract

中文翻译：

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使用单个微通道板检测器进行离子和电子测量的低能粒子实验

我们开发了一种低能粒子实验，可以交替测量空间中的离子和电子。只需将超薄碳箔和正负输出分别添加到传统的顶帽静电分析仪和高压电源即可实现离子和电子测量之间的切换。该实验的优点在于，它可以仅使用一个基于 MCP 的电子检测器来执行离子和电子测量，因为它检测从碳箔发射的二次电子。对于SS520-3探空火箭计划，我们准备了两台相同的能量分析仪，一台用于离子，另一台用于电子来演示这项技术。实验室测试证实，这两种分析仪的性能与传统离子和电子分析仪的性能相当。 SS520-3火箭在高纬度极光区的实验获得了捕获离子和电子典型特征的观测结果，这与之前的观测结果相似。

图形概要