单螺线管磁透镜控制二维离子束弯曲
Magnetic Lens Made of a Single Solenoid for Controlling Bending of Two-Dimensional Ion Beam
摘要：
具有任意截面的理想螺线管腔内的磁场总是恒定的，而螺线管外的磁场总是为零。我们可以制作一个螺线管透镜，通过调整螺线管圆周的曲率，可以将平行光束聚焦到它后面的一点。在本文中，我们讨论的磁透镜的设计范围从简单的几何形状到一般的。我们发现有无限多的曲率可以用来将平行光束聚焦到特定的焦点。利用这一性质，我们还提出了一个简单的质谱仪的概念，通过测量的强度，由放置在焦点的检测器捕获的离子。这一结果有望丰富本科课程的学习材料，特别是对电和磁的主题。
英文摘要：
The magnetic field inside an ideal solenoid cavity with an arbitrary cross-section is always constant, while it is always zero outside the solenoid. We can make a solenoid lens that can focus a parallel beam to a point behind it by adjusting the curvature of the solenoid circumference. In this paper, we discuss the design of magnetic lenses ranging from simple geometries to the general ones. We discovered that there are an infinite number of curvatures that can be used to focus the parallel beam to a specific focal point. Using this property, we also present the concept of a simple mass spectrometer by measuring the intensity of the ion captured by a detector placed at the focal point. This result is expected to enrich learning material in undergraduate courses, especially for the topic of electricity and magnetism.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
