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An ultra-compact retarding-potential Mott polarimeter.

机译：超紧凑型延迟电位Mott旋光仪。

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摘要

Many areas of study, from particle-surface interactions to magnetic properties of surfaces and thin films, can benefit from electron spin analysis. These experiments frequently employ Mott polarimeters. In the past, Mott polarimeters were bulky, and operated at high voltages (∼150 kV). Modern retarding-potential Mott polarimeters operate in the 20 kV range, and are small enough to be mounted inside a vacuum system. A new, ultra-compact Mott polarimeter is described here which occupies a significantly smaller volume than previous designs. This polarimeter, when equipped with a thorium target and operating with an accelerating potential of 25 kV obtained a figure of merit of ∼1.3 x 10-4, which is similar to the best values achieved by previous Mott polarimeters. Thus this design is well suited for a variety of applications involving angle- and/or energy-resolved polarization measurements.
机译：从粒子-表面相互作用到表面和薄膜的磁性，许多研究领域都可以从电子自旋分析中受益。这些实验经常使用Mott旋光仪。过去，Mott旋光仪体积庞大，并且在高压（〜150 kV）下运行。现代的延迟电势Mott旋光仪在20 kV范围内运行，并且足够小，可以安装在真空系统内部。本文介绍了一种新型的超紧凑型Mott旋光仪，其体积比以前的设计小得多。当该偏振计配备a靶并以25 kV的加速电位运行时，其品质因数约为1.3 x 10-4，这与以前的Mott旋光仪所实现的最佳值相似。因此，该设计非常适合涉及角度和/或能量分辨偏振测量的各种应用。

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