2π-Radian field-of-view toroidal electrostatic analyzer
2π-Radian field-of-view toroidal electrostatic analyzer
复制标题
2π弧度视场环形静电分析仪
DOI：
10.1063/1.1139821
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发表时间：
1988
影响因子：
1.6
通讯作者：
B. Reinhard
中科院分区：
文献类型：
--
作者：
D. Young;S. J. Bame;M. Thomsen;R. Martin;J. Burch;J. A. Marshall;B. Reinhard
本文介绍了一种基于环形几何结构的新型静电带电粒子分析器。该分析仪具有360°×10°（极轴×方位角）的视场，极轴方向的焦距明显长于基于球面几何结构的类似设备。扩展焦距是将静电能谱仪与第二个质量分辨分析仪匹配的要求。实验室测试表明，环形设计具有每单位仪器重量的大几何因子、粒子偏转平面中的良好能量角分辨率以及极角方向上焦点处的锐利（1.0° FWHM）分辨率。该分析仪非常适合用于星载质谱分析，也可作为独立的静电分析仪使用。
We describe a new type of electrostatic charged particle analyzer based on toroidal geometry. The analyzer features a 360°×10° (polar×azimuthal) field of view and a focal length in the polar direction significantly longer than that of similar devices based on spherical geometry. Extended focal length is a requirement for matching the electrostatic energy spectrometer with a second, mass‐resolving, analyzer. Laboratory tests show that the toroid design has a large geometric factor per unit of instrument weight, good energy‐angle resolution in the particle deflection plane, and sharp (1.0° FWHM) resolution at focus in the polar angle direction. The analyzer is well suited for use in satellite‐borne mass spectrometry and also as a stand‐alone electrostatic analyzer.