Design study of a test vessel to investigate the ISIS H− Penning ion source plasma
Design study of a test vessel to investigate the ISIS H− Penning ion source plasma
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用于研究 ISIS H− Penning 离子源等离子体的测试容器的设计研究
DOI：
10.1063/1.4792814
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
D. Faircloth
中科院分区：
文献类型：
--
作者：
S. Lawrie;D. Faircloth
为了了解ISIS潘宁离子源中负氢（H-）离子形成的主要等离子体过程，建立了一个用于提取和源等离子体分析的真空容器（VESPA）。VESPA被设计成简单且便宜，去除了不直接负责等离子体形成的ISIS离子源的所有特征，使得在等离子体附近有足够的诊断空间。诊断将包括但不限于束流密度监测器、高分辨率可见光单色仪、铯质量沉积监测器、静电能量分析仪、磁质谱仪和发射扫描仪。一些现有的部件和辅助设备被重新使用，以降低成本并加快安装速度。VESPA的最终目的是对H−的产生、铯的使用和束流的形成进行详细的分析，以便使用这种设置对离子源进行升级。这份报告详细…
A vacuum-vessel for extraction and source plasma analyses (VESPA) has been constructed with the aim of understanding the dominant plasma processes of negative hydrogen (H−) ion formation in the ISIS Penning ion source. The VESPA has been designed to be simple and inexpensive, with all features of the ISIS ion source not directly responsible for plasma formation removed such that there is ample space for diagnostics close to the plasma. Diagnostics will include but are not limited to a beam current density monitor, a high resolution visible-light monochromator, a cesium mass deposition monitor, an electrostatic energy analyser, a magnetic mass spectrometer and an emittance scanner. Several existing parts and ancillary equipment are re-used to reduce costs and to speed up installation. The ultimate aim of the VESPA is to perform detailed analyses of the H− production, cesium usage and beam formation such that an upgrade to the ion source is both well informed and possible using this setup. This report detai...