CIS ion spectrometer

The CIS (Cluster Ion Spectrometry) experiment is a comprehensive ionic plasma spectrometry package onboard the Cluster spacecraft, capable of obtaining full three dimentional ion distributions (about 0 to 40 KeV/e) with a time resolution of one spacecraft spin (4 sec) and with mass-per-charge composition determination. The CIS package consists of two different instruments, a time-of-flight ion Composition and Distribution Function analyser (CODIF) and a Hot Ion Analyser (HIA). All CIS datasets are available on the ESA Cluster Science Archive at https://csa.esac.esa.int/CIS（簇离子质谱仪）实验是搭载于Cluster航天器上的全面性离子等离子体质谱仪套装，能够以一航天器自转周期（4秒）的时间分辨率，获取从0至40 KeV/e的全三维离子分布，并实现质量-电荷比组成的测定。CIS套装包含两种不同的仪器，即时间飞行离子组成与分布函数分析器（CODIF）和热离子分析仪（HIA）。所有CIS数据集均可在欧洲空间局（ESA）的Cluster科学档案中获取，访问链接为https://csa.esac.esa.int/。