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首页> 外文期刊>Review of Scientific Instruments >A very low energy compact electron beam ion trap for spectroscopic research in Shanghai
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A very low energy compact electron beam ion trap for spectroscopic research in Shanghai

机译：一种非常低能的紧凑型电子束离子阱，用于上海的光谱研究

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In this paper, a new compact low energy electron beam ion trap, SH-PermEBIT, is reported. This electron beam ion trap (EBIT) can operate in the electron energy range of 60–5000 eV, with a current density of up to 100 A/cm2. The low energy limit of this machine sets the record among the reported works so far. The magnetic field in the central drift tube region of this EBIT is around 0.5 T, produced by permanent magnets and soft iron. The design of this EBIT allows adjustment of the electron gun's axial position in the fringe field of the central magnetic field. This turned out to be very important for optimizing the magnetic field in the region of the electron gun and particularly important for low electron beam energy operation, since the magnetic field strength is not tunable with permanent magnets. In this work, transmission of the electron beam as well as the upper limit of the electron beam width under several conditions are measured. Spectral results from test operation of this EBIT at the electron energies of 60, 315, 2800, and 4100 eV are also reported.
机译：本文报道了一种新型的紧凑型低能电子束离子阱，SH-PermEBIT。该电子束离子阱（EBIT）可以在60–5000 eV的电子能量范围内工作，电流密度高达100 A / cm 2 。该机器的低能耗极限创造了迄今为止所报道工作的记录。该EBIT的中心漂移管区域中的磁场约为0.5 T，由永磁体和软铁产生。该EBIT的设计允许调节电子枪在中心磁场边缘场中的轴向位置。这对于优化电子枪区域内的磁场非常重要，并且对于低电子束能量操作尤其重要，因为磁场强度无法通过永磁体进行调节。在这项工作中，测量了几种条件下电子束的透射率以及电子束宽度的上限。还报告了该EBIT在60、315、2800和4100 eV电子能量下的测试操作的光谱结果。

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